./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_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_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/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_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/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_1128e4d0-405c-431f-8884-e7951969db47/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 74836a87661fce5875ab1ae94a73cbe51ee04e76d05fc1828decf2341972d635 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:26:12,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:26:12,539 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:26:12,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:26:12,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:26:12,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:26:12,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:26:12,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:26:12,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:26:12,580 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:26:12,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:26:12,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:26:12,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:26:12,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:26:12,581 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:26:12,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:26:12,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:26:12,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:26:12,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:26:12,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:26:12,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:26:12,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:26:12,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:26:12,583 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:26:12,583 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:26:12,583 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:26:12,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:26:12,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:26:12,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:26:12,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:26:12,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:26:12,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:26:12,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:26:12,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:26:12,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:26:12,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:26:12,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:26:12,585 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:26:12,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:26:12,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:26:12,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:26:12,586 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:26:12,586 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:26:12,586 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:26:12,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:26:12,586 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_1128e4d0-405c-431f-8884-e7951969db47/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 -> 74836a87661fce5875ab1ae94a73cbe51ee04e76d05fc1828decf2341972d635 [2024-11-28 02:26:12,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:26:12,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:26:12,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:26:12,999 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:26:13,000 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:26:13,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2024-11-28 02:26:16,161 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/data/7f7ce8d9d/970a60aac0b5467a8b289abcbff7cfdb/FLAG7f9be21b9 [2024-11-28 02:26:16,764 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:26:16,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2024-11-28 02:26:16,814 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/data/7f7ce8d9d/970a60aac0b5467a8b289abcbff7cfdb/FLAG7f9be21b9 [2024-11-28 02:26:16,840 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/data/7f7ce8d9d/970a60aac0b5467a8b289abcbff7cfdb [2024-11-28 02:26:16,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:26:16,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:26:16,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:26:16,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:26:16,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:26:16,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:26:16" (1/1) ... [2024-11-28 02:26:16,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c0ead5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:16, skipping insertion in model container [2024-11-28 02:26:16,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:26:16" (1/1) ... [2024-11-28 02:26:16,979 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:26:17,388 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_1128e4d0-405c-431f-8884-e7951969db47/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2024-11-28 02:26:17,400 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_1128e4d0-405c-431f-8884-e7951969db47/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2024-11-28 02:26:18,924 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,925 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,926 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,927 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,929 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,951 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,952 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,956 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,957 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,959 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,961 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,962 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:18,963 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,429 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,430 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,469 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,473 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,488 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,489 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,513 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,515 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,516 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,516 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,517 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,517 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,518 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,593 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_1128e4d0-405c-431f-8884-e7951969db47/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[229089,229102] [2024-11-28 02:26:20,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:26:20,637 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:26:20,654 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_1128e4d0-405c-431f-8884-e7951969db47/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2024-11-28 02:26:20,655 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_1128e4d0-405c-431f-8884-e7951969db47/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2024-11-28 02:26:20,736 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,737 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,737 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,740 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,741 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,753 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,755 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,757 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,757 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,758 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,759 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,760 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,761 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:20,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7576-7587] [2024-11-28 02:26:21,077 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,078 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,090 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,091 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,095 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,095 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,111 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,112 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,113 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,113 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,113 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,113 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,114 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:26:21,154 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_1128e4d0-405c-431f-8884-e7951969db47/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[229089,229102] [2024-11-28 02:26:21,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:26:21,653 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:26:21,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21 WrapperNode [2024-11-28 02:26:21,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:26:21,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:26:21,673 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:26:21,673 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:26:21,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:21,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,018 INFO L138 Inliner]: procedures = 764, calls = 2484, calls flagged for inlining = 68, calls inlined = 21, statements flattened = 1370 [2024-11-28 02:26:22,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:26:22,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:26:22,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:26:22,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:26:22,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,055 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,072 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-28 02:26:22,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,169 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:26:22,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:26:22,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:26:22,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:26:22,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (1/1) ... [2024-11-28 02:26:22,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:26:22,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:26:22,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:26:22,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:26:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2024-11-28 02:26:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2024-11-28 02:26:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-28 02:26:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2024-11-28 02:26:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2024-11-28 02:26:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2024-11-28 02:26:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2024-11-28 02:26:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:26:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 02:26:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 02:26:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-28 02:26:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-28 02:26:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-28 02:26:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-28 02:26:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2024-11-28 02:26:22,350 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2024-11-28 02:26:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 02:26:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 02:26:22,351 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 02:26:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:26:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:26:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-28 02:26:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_create [2024-11-28 02:26:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_create [2024-11-28 02:26:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-28 02:26:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-28 02:26:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:26:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:26:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-28 02:26:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-28 02:26:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 02:26:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2024-11-28 02:26:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2024-11-28 02:26:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2024-11-28 02:26:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2024-11-28 02:26:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2024-11-28 02:26:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2024-11-28 02:26:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:26:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:26:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 02:26:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 02:26:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 02:26:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 02:26:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-28 02:26:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2024-11-28 02:26:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-28 02:26:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:26:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-28 02:26:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-28 02:26:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 02:26:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 02:26:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 02:26:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-28 02:26:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-28 02:26:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 02:26:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 02:26:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 02:26:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2024-11-28 02:26:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2024-11-28 02:26:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2024-11-28 02:26:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2024-11-28 02:26:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2024-11-28 02:26:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2024-11-28 02:26:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 02:26:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 02:26:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:26:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-28 02:26:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-28 02:26:22,998 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:26:23,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:26:23,491 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 02:26:23,505 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume false; [2024-11-28 02:26:23,506 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !false; [2024-11-28 02:26:23,528 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 02:26:23,567 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2024-11-28 02:26:23,567 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2024-11-28 02:26:24,348 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 02:26:24,355 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 02:26:24,660 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume false; [2024-11-28 02:26:24,660 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !false; [2024-11-28 02:26:24,660 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume !false; [2024-11-28 02:26:24,660 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume false; [2024-11-28 02:26:31,276 INFO L? ?]: Removed 393 outVars from TransFormulas that were not future-live. [2024-11-28 02:26:31,276 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:26:31,309 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:26:31,309 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-28 02:26:31,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:26:31 BoogieIcfgContainer [2024-11-28 02:26:31,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:26:31,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:26:31,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:26:31,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:26:31,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:26:16" (1/3) ... [2024-11-28 02:26:31,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d631341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:26:31, skipping insertion in model container [2024-11-28 02:26:31,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:26:21" (2/3) ... [2024-11-28 02:26:31,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d631341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:26:31, skipping insertion in model container [2024-11-28 02:26:31,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:26:31" (3/3) ... [2024-11-28 02:26:31,333 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness.i [2024-11-28 02:26:31,357 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:26:31,360 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_create_harness.i that has 31 procedures, 400 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-28 02:26:31,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:26:31,514 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;@3e60bd00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:26:31,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:26:31,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 286 states have (on average 1.3041958041958042) internal successors, (373), 283 states have internal predecessors, (373), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 02:26:31,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 02:26:31,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:26:31,539 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:26:31,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:26:31,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:26:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1395973969, now seen corresponding path program 1 times [2024-11-28 02:26:31,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:26:31,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313958376] [2024-11-28 02:26:31,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:26:31,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:26:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:26:40,921 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-28 02:26:40,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:26:40,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313958376] [2024-11-28 02:26:40,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313958376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:26:40,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893328038] [2024-11-28 02:26:40,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:26:40,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:26:40,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:26:40,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:26:40,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:26:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:26:49,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 4407 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:26:49,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:26:49,855 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 02:26:49,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:26:49,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893328038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:26:49,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:26:49,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:26:49,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714429534] [2024-11-28 02:26:49,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:26:49,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:26:49,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:26:49,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:26:49,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:26:49,897 INFO L87 Difference]: Start difference. First operand has 400 states, 286 states have (on average 1.3041958041958042) internal successors, (373), 283 states have internal predecessors, (373), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 02:26:50,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:26:50,033 INFO L93 Difference]: Finished difference Result 794 states and 1142 transitions. [2024-11-28 02:26:50,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:26:50,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2024-11-28 02:26:50,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:26:50,053 INFO L225 Difference]: With dead ends: 794 [2024-11-28 02:26:50,053 INFO L226 Difference]: Without dead ends: 392 [2024-11-28 02:26:50,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:26:50,066 INFO L435 NwaCegarLoop]: 533 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, 533 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:26:50,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:26:50,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-28 02:26:50,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-28 02:26:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 275 states have (on average 1.2872727272727273) internal successors, (354), 277 states have internal predecessors, (354), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 02:26:50,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 524 transitions. [2024-11-28 02:26:50,203 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 524 transitions. Word has length 124 [2024-11-28 02:26:50,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:26:50,204 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 524 transitions. [2024-11-28 02:26:50,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 02:26:50,205 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 524 transitions. [2024-11-28 02:26:50,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 02:26:50,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:26:50,212 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:26:50,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:26:50,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:26:50,414 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:26:50,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:26:50,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2034095755, now seen corresponding path program 1 times [2024-11-28 02:26:50,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:26:50,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224668952] [2024-11-28 02:26:50,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:26:50,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:26:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:26:59,560 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-28 02:26:59,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:26:59,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224668952] [2024-11-28 02:26:59,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224668952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:26:59,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:26:59,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:26:59,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016139515] [2024-11-28 02:26:59,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:26:59,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:26:59,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:26:59,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:26:59,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:26:59,568 INFO L87 Difference]: Start difference. First operand 392 states and 524 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 02:26:59,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:26:59,840 INFO L93 Difference]: Finished difference Result 780 states and 1047 transitions. [2024-11-28 02:26:59,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:26:59,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2024-11-28 02:26:59,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:26:59,848 INFO L225 Difference]: With dead ends: 780 [2024-11-28 02:26:59,849 INFO L226 Difference]: Without dead ends: 397 [2024-11-28 02:26:59,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:26:59,852 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 0 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:26:59,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2080 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:26:59,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-28 02:26:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-28 02:26:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 279 states have (on average 1.2831541218637992) internal successors, (358), 281 states have internal predecessors, (358), 86 states have call successors, (86), 30 states have call predecessors, (86), 31 states have return successors, (88), 85 states have call predecessors, (88), 84 states have call successors, (88) [2024-11-28 02:26:59,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 532 transitions. [2024-11-28 02:26:59,889 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 532 transitions. Word has length 124 [2024-11-28 02:26:59,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:26:59,890 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 532 transitions. [2024-11-28 02:26:59,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 02:26:59,890 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 532 transitions. [2024-11-28 02:26:59,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 02:26:59,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:26:59,897 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:26:59,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:26:59,897 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:26:59,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:26:59,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1564860968, now seen corresponding path program 1 times [2024-11-28 02:26:59,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:26:59,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156393408] [2024-11-28 02:26:59,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:26:59,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:27:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-28 02:27:08,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:27:08,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156393408] [2024-11-28 02:27:08,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156393408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:27:08,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:27:08,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:27:08,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607698324] [2024-11-28 02:27:08,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:27:08,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:27:08,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:27:08,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:27:08,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:27:08,211 INFO L87 Difference]: Start difference. First operand 397 states and 532 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-28 02:27:08,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:27:08,523 INFO L93 Difference]: Finished difference Result 780 states and 1045 transitions. [2024-11-28 02:27:08,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:27:08,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 130 [2024-11-28 02:27:08,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:27:08,529 INFO L225 Difference]: With dead ends: 780 [2024-11-28 02:27:08,530 INFO L226 Difference]: Without dead ends: 397 [2024-11-28 02:27:08,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:27:08,532 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 23 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:27:08,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1505 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:27:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-28 02:27:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-28 02:27:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 279 states have (on average 1.2795698924731183) internal successors, (357), 281 states have internal predecessors, (357), 86 states have call successors, (86), 30 states have call predecessors, (86), 31 states have return successors, (88), 85 states have call predecessors, (88), 84 states have call successors, (88) [2024-11-28 02:27:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 531 transitions. [2024-11-28 02:27:08,566 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 531 transitions. Word has length 130 [2024-11-28 02:27:08,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:27:08,569 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 531 transitions. [2024-11-28 02:27:08,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-28 02:27:08,569 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 531 transitions. [2024-11-28 02:27:08,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 02:27:08,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:27:08,572 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:27:08,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:27:08,577 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:27:08,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:27:08,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1147464362, now seen corresponding path program 1 times [2024-11-28 02:27:08,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:27:08,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941340396] [2024-11-28 02:27:08,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:27:08,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:27:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-28 02:27:19,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:27:19,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941340396] [2024-11-28 02:27:19,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941340396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:27:19,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:27:19,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:27:19,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389744830] [2024-11-28 02:27:19,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:27:19,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:27:19,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:27:19,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:27:19,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:27:19,688 INFO L87 Difference]: Start difference. First operand 397 states and 531 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-28 02:27:23,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:27:28,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:27:32,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:27:36,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:27:41,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:27:41,013 INFO L93 Difference]: Finished difference Result 776 states and 1037 transitions. [2024-11-28 02:27:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:27:41,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 130 [2024-11-28 02:27:41,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:27:41,022 INFO L225 Difference]: With dead ends: 776 [2024-11-28 02:27:41,022 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 02:27:41,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:27:41,025 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 5 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3420 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:27:41,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3420 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 4 Unknown, 0 Unchecked, 20.8s Time] [2024-11-28 02:27:41,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 02:27:41,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-11-28 02:27:41,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 281 states have (on average 1.2775800711743772) internal successors, (359), 284 states have internal predecessors, (359), 86 states have call successors, (86), 30 states have call predecessors, (86), 32 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2024-11-28 02:27:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 534 transitions. [2024-11-28 02:27:41,065 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 534 transitions. Word has length 130 [2024-11-28 02:27:41,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:27:41,067 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 534 transitions. [2024-11-28 02:27:41,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-28 02:27:41,068 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 534 transitions. [2024-11-28 02:27:41,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 02:27:41,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:27:41,072 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:27:41,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:27:41,073 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:27:41,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:27:41,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1708166692, now seen corresponding path program 1 times [2024-11-28 02:27:41,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:27:41,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419178111] [2024-11-28 02:27:41,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:27:41,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:27:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 02:27:49,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:27:49,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419178111] [2024-11-28 02:27:49,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419178111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:27:49,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680637295] [2024-11-28 02:27:49,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:27:49,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:27:49,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:27:49,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:27:49,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:27:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:56,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 4440 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 02:27:56,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:02,491 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((v_aws_hash_table_is_valid_~map.base_4 Int) (v_aws_hash_table_is_valid_~map.offset_4 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_hash_table_is_valid_~map.base_4) v_aws_hash_table_is_valid_~map.offset_4) 0))) (exists ((v_aws_hash_table_is_valid_~map.base_4 Int) (v_aws_hash_table_is_valid_~map.offset_4 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_hash_table_is_valid_~map.base_4) v_aws_hash_table_is_valid_~map.offset_4) 0)))) is different from true [2024-11-28 02:28:11,382 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 02:28:11,382 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:11,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680637295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:11,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:28:11,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-28 02:28:11,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557405586] [2024-11-28 02:28:11,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:11,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:28:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:28:11,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:28:11,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2024-11-28 02:28:11,387 INFO L87 Difference]: Start difference. First operand 400 states and 534 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-28 02:28:15,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:28:19,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:28:24,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:28:28,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:28:32,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:28:39,046 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 02:28:43,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:43,743 INFO L93 Difference]: Finished difference Result 785 states and 1049 transitions. [2024-11-28 02:28:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:28:43,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 136 [2024-11-28 02:28:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:43,760 INFO L225 Difference]: With dead ends: 785 [2024-11-28 02:28:43,760 INFO L226 Difference]: Without dead ends: 404 [2024-11-28 02:28:43,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2024-11-28 02:28:43,766 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 3 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 534 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:43,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2833 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 6 Unknown, 534 Unchecked, 32.3s Time] [2024-11-28 02:28:43,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-28 02:28:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 402. [2024-11-28 02:28:43,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 283 states have (on average 1.2756183745583038) internal successors, (361), 285 states have internal predecessors, (361), 86 states have call successors, (86), 31 states have call predecessors, (86), 32 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2024-11-28 02:28:43,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 536 transitions. [2024-11-28 02:28:43,810 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 536 transitions. Word has length 136 [2024-11-28 02:28:43,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:43,811 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 536 transitions. [2024-11-28 02:28:43,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-28 02:28:43,811 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 536 transitions. [2024-11-28 02:28:43,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:28:43,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:43,814 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:43,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:28:44,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:44,015 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:28:44,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:44,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1807754501, now seen corresponding path program 1 times [2024-11-28 02:28:44,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:28:44,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828528578] [2024-11-28 02:28:44,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:44,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:28:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:53,697 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:28:53,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:28:53,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828528578] [2024-11-28 02:28:53,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828528578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:53,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:53,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:28:53,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819991319] [2024-11-28 02:28:53,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:53,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:28:53,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:28:53,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:28:53,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:28:53,700 INFO L87 Difference]: Start difference. First operand 402 states and 536 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-28 02:28:54,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:54,378 INFO L93 Difference]: Finished difference Result 408 states and 541 transitions. [2024-11-28 02:28:54,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:28:54,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2024-11-28 02:28:54,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:54,383 INFO L225 Difference]: With dead ends: 408 [2024-11-28 02:28:54,383 INFO L226 Difference]: Without dead ends: 406 [2024-11-28 02:28:54,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:28:54,384 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 4 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:54,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2062 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:28:54,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-28 02:28:54,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2024-11-28 02:28:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 286 states have (on average 1.2727272727272727) internal successors, (364), 288 states have internal predecessors, (364), 86 states have call successors, (86), 32 states have call predecessors, (86), 33 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2024-11-28 02:28:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 539 transitions. [2024-11-28 02:28:54,408 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 539 transitions. Word has length 143 [2024-11-28 02:28:54,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:54,408 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 539 transitions. [2024-11-28 02:28:54,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-28 02:28:54,409 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 539 transitions. [2024-11-28 02:28:54,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 02:28:54,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:54,411 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:54,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:28:54,411 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:28:54,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:54,412 INFO L85 PathProgramCache]: Analyzing trace with hash -670871041, now seen corresponding path program 1 times [2024-11-28 02:28:54,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:28:54,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066884244] [2024-11-28 02:28:54,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:54,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:28:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:02,675 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:29:02,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:02,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066884244] [2024-11-28 02:29:02,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066884244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:29:02,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:29:02,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:29:02,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462051338] [2024-11-28 02:29:02,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:29:02,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:29:02,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:29:02,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:29:02,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:29:02,678 INFO L87 Difference]: Start difference. First operand 406 states and 539 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-28 02:29:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:03,385 INFO L93 Difference]: Finished difference Result 414 states and 547 transitions. [2024-11-28 02:29:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:29:03,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 156 [2024-11-28 02:29:03,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:03,391 INFO L225 Difference]: With dead ends: 414 [2024-11-28 02:29:03,391 INFO L226 Difference]: Without dead ends: 412 [2024-11-28 02:29:03,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:29:03,393 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 3 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:03,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2067 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:29:03,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-28 02:29:03,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2024-11-28 02:29:03,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 289 states have (on average 1.2698961937716262) internal successors, (367), 292 states have internal predecessors, (367), 87 states have call successors, (87), 33 states have call predecessors, (87), 34 states have return successors, (90), 85 states have call predecessors, (90), 85 states have call successors, (90) [2024-11-28 02:29:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 544 transitions. [2024-11-28 02:29:03,420 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 544 transitions. Word has length 156 [2024-11-28 02:29:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:03,421 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 544 transitions. [2024-11-28 02:29:03,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-28 02:29:03,421 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 544 transitions. [2024-11-28 02:29:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 02:29:03,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:03,425 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:29:03,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:29:03,425 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:29:03,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:03,426 INFO L85 PathProgramCache]: Analyzing trace with hash -669023999, now seen corresponding path program 1 times [2024-11-28 02:29:03,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:29:03,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637692914] [2024-11-28 02:29:03,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:03,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:29:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:29:11,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:11,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637692914] [2024-11-28 02:29:11,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637692914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:29:11,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:29:11,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:29:11,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076273331] [2024-11-28 02:29:11,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:29:11,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:29:11,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:29:11,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:29:11,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:29:11,318 INFO L87 Difference]: Start difference. First operand 411 states and 544 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-28 02:29:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:11,982 INFO L93 Difference]: Finished difference Result 417 states and 549 transitions. [2024-11-28 02:29:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:29:11,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 156 [2024-11-28 02:29:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:11,986 INFO L225 Difference]: With dead ends: 417 [2024-11-28 02:29:11,987 INFO L226 Difference]: Without dead ends: 415 [2024-11-28 02:29:11,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:29:11,988 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 3 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:11,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2066 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:29:11,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-28 02:29:12,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 410. [2024-11-28 02:29:12,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 289 states have (on average 1.2698961937716262) internal successors, (367), 291 states have internal predecessors, (367), 86 states have call successors, (86), 33 states have call predecessors, (86), 34 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2024-11-28 02:29:12,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 542 transitions. [2024-11-28 02:29:12,016 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 542 transitions. Word has length 156 [2024-11-28 02:29:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:12,017 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 542 transitions. [2024-11-28 02:29:12,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-28 02:29:12,018 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 542 transitions. [2024-11-28 02:29:12,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-28 02:29:12,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:12,022 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:29:12,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:29:12,023 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:29:12,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:12,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1875367330, now seen corresponding path program 1 times [2024-11-28 02:29:12,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:29:12,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246151653] [2024-11-28 02:29:12,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:12,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:29:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:22,472 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-28 02:29:22,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:22,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246151653] [2024-11-28 02:29:22,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246151653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:29:22,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:29:22,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 02:29:22,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155259913] [2024-11-28 02:29:22,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:29:22,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:29:22,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:29:22,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:29:22,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:29:22,477 INFO L87 Difference]: Start difference. First operand 410 states and 542 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 9 states have internal predecessors, (85), 6 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-28 02:29:26,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:26,032 INFO L93 Difference]: Finished difference Result 832 states and 1115 transitions. [2024-11-28 02:29:26,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:29:26,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 9 states have internal predecessors, (85), 6 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 179 [2024-11-28 02:29:26,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:26,039 INFO L225 Difference]: With dead ends: 832 [2024-11-28 02:29:26,039 INFO L226 Difference]: Without dead ends: 500 [2024-11-28 02:29:26,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:29:26,042 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 133 mSDsluCounter, 5579 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 6144 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:26,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 6144 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 02:29:26,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-28 02:29:26,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 466. [2024-11-28 02:29:26,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 333 states have (on average 1.2882882882882882) internal successors, (429), 336 states have internal predecessors, (429), 94 states have call successors, (94), 36 states have call predecessors, (94), 38 states have return successors, (98), 93 states have call predecessors, (98), 92 states have call successors, (98) [2024-11-28 02:29:26,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 621 transitions. [2024-11-28 02:29:26,072 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 621 transitions. Word has length 179 [2024-11-28 02:29:26,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:26,073 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 621 transitions. [2024-11-28 02:29:26,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 9 states have internal predecessors, (85), 6 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-28 02:29:26,073 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 621 transitions. [2024-11-28 02:29:26,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 02:29:26,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:26,077 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:29:26,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:29:26,077 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:29:26,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:26,077 INFO L85 PathProgramCache]: Analyzing trace with hash -479474643, now seen corresponding path program 1 times [2024-11-28 02:29:26,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:29:26,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091513373] [2024-11-28 02:29:26,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:26,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:29:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-28 02:29:33,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:33,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091513373] [2024-11-28 02:29:33,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091513373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:29:33,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:29:33,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:29:33,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130758081] [2024-11-28 02:29:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:29:33,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:29:33,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:29:33,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:29:33,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:29:33,116 INFO L87 Difference]: Start difference. First operand 466 states and 621 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-28 02:29:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:33,330 INFO L93 Difference]: Finished difference Result 549 states and 719 transitions. [2024-11-28 02:29:33,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:29:33,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 171 [2024-11-28 02:29:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:33,336 INFO L225 Difference]: With dead ends: 549 [2024-11-28 02:29:33,336 INFO L226 Difference]: Without dead ends: 472 [2024-11-28 02:29:33,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:29:33,338 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 0 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:33,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2077 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:29:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-28 02:29:33,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2024-11-28 02:29:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 337 states have (on average 1.28486646884273) internal successors, (433), 341 states have internal predecessors, (433), 94 states have call successors, (94), 36 states have call predecessors, (94), 40 states have return successors, (100), 94 states have call predecessors, (100), 92 states have call successors, (100) [2024-11-28 02:29:33,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 627 transitions. [2024-11-28 02:29:33,369 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 627 transitions. Word has length 171 [2024-11-28 02:29:33,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:33,370 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 627 transitions. [2024-11-28 02:29:33,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-28 02:29:33,370 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 627 transitions. [2024-11-28 02:29:33,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 02:29:33,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:33,374 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:29:33,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:29:33,375 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:29:33,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:33,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1905320929, now seen corresponding path program 1 times [2024-11-28 02:29:33,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:29:33,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640524558] [2024-11-28 02:29:33,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:33,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:29:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-28 02:29:39,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:39,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640524558] [2024-11-28 02:29:39,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640524558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:29:39,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:29:39,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:29:39,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762989601] [2024-11-28 02:29:39,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:29:39,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:29:39,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:29:39,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:29:39,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:29:39,522 INFO L87 Difference]: Start difference. First operand 472 states and 627 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-28 02:29:39,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:39,652 INFO L93 Difference]: Finished difference Result 756 states and 999 transitions. [2024-11-28 02:29:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:29:39,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 173 [2024-11-28 02:29:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:39,657 INFO L225 Difference]: With dead ends: 756 [2024-11-28 02:29:39,658 INFO L226 Difference]: Without dead ends: 474 [2024-11-28 02:29:39,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:29:39,660 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:39,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1039 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:29:39,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-28 02:29:39,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2024-11-28 02:29:39,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 339 states have (on average 1.2831858407079646) internal successors, (435), 343 states have internal predecessors, (435), 94 states have call successors, (94), 36 states have call predecessors, (94), 40 states have return successors, (100), 94 states have call predecessors, (100), 92 states have call successors, (100) [2024-11-28 02:29:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 629 transitions. [2024-11-28 02:29:39,690 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 629 transitions. Word has length 173 [2024-11-28 02:29:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:39,691 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 629 transitions. [2024-11-28 02:29:39,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-28 02:29:39,691 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 629 transitions. [2024-11-28 02:29:39,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 02:29:39,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:39,696 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:29:39,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:29:39,697 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:29:39,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:39,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1524384807, now seen corresponding path program 1 times [2024-11-28 02:29:39,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:29:39,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736851261] [2024-11-28 02:29:39,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:39,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:29:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:57,529 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-11-28 02:29:57,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:57,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736851261] [2024-11-28 02:29:57,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736851261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:29:57,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776281748] [2024-11-28 02:29:57,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:57,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:29:57,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:29:57,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:29:57,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:30:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:30:05,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 4669 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-28 02:30:05,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:30:05,292 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 6 treesize of output 5 [2024-11-28 02:30:08,893 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-28 02:30:08,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-28 02:30:09,101 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 5 treesize of output 3 [2024-11-28 02:30:09,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 3 [2024-11-28 02:30:10,151 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-28 02:30:10,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-28 02:30:11,330 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 5 treesize of output 3 [2024-11-28 02:30:11,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:30:11,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-11-28 02:30:12,302 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 9 [2024-11-28 02:30:12,373 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 15 treesize of output 1 [2024-11-28 02:30:17,164 INFO L349 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2024-11-28 02:30:17,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 104 [2024-11-28 02:30:17,222 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 18 treesize of output 14 [2024-11-28 02:30:17,257 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 31 treesize of output 8 [2024-11-28 02:30:19,292 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 02:30:19,292 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2024-11-28 02:30:19,441 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 02:30:19,441 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 11 treesize of output 11 [2024-11-28 02:30:23,991 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_11| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_11|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_11|))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_11|) (not (= .cse0 0))))) is different from true [2024-11-28 02:30:28,906 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_12| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_12|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_12|))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_12|) (not (= .cse0 0))))) is different from true [2024-11-28 02:30:33,993 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_13| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_13|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_13|))) (and (<= (+ .cse0 2) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_13|) (not (= .cse0 0))))) is different from true [2024-11-28 02:30:34,818 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 19 [2024-11-28 02:30:39,548 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_14| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_14|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_14|))) (and (<= (+ .cse0 2) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_14|) (not (= .cse0 0))))) is different from true [2024-11-28 02:30:40,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-28 02:30:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 68 proven. 49 refuted. 12 times theorem prover too weak. 20 trivial. 63 not checked. [2024-11-28 02:30:41,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:30:43,649 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_22548 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hash_table_state_has_an_empty_slot_~rval#1.base| v_ArrVal_22548) |c_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base|) |c_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset|) 0))) is different from false [2024-11-28 02:30:43,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776281748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:30:43,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:30:43,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25] total 32 [2024-11-28 02:30:43,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988716435] [2024-11-28 02:30:43,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:30:43,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 02:30:43,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:30:43,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 02:30:43,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=788, Unknown=5, NotChecked=300, Total=1190 [2024-11-28 02:30:43,734 INFO L87 Difference]: Start difference. First operand 474 states and 629 transitions. Second operand has 32 states, 30 states have (on average 4.766666666666667) internal successors, (143), 28 states have internal predecessors, (143), 18 states have call successors, (50), 11 states have call predecessors, (50), 13 states have return successors, (47), 18 states have call predecessors, (47), 18 states have call successors, (47) [2024-11-28 02:30:47,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:30:52,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:30:56,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:00,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:05,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:09,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:13,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:18,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:22,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:26,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:31,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:35,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:40,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:44,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:48,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:53,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:31:57,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:32:01,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:32:06,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:32:10,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:32:27,333 WARN L539 Checker$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 02:33:39,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:34:23,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:34:28,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:34:41,537 WARN L539 Checker$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 02:34:42,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:34:42,903 INFO L93 Difference]: Finished difference Result 1046 states and 1363 transitions. [2024-11-28 02:34:42,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 02:34:42,904 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 4.766666666666667) internal successors, (143), 28 states have internal predecessors, (143), 18 states have call successors, (50), 11 states have call predecessors, (50), 13 states have return successors, (47), 18 states have call predecessors, (47), 18 states have call successors, (47) Word has length 177 [2024-11-28 02:34:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:34:42,910 INFO L225 Difference]: With dead ends: 1046 [2024-11-28 02:34:42,910 INFO L226 Difference]: Without dead ends: 620 [2024-11-28 02:34:42,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 213 SyntacticMatches, 22 SemanticMatches, 59 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 47.2s TimeCoverageRelationStatistics Valid=325, Invalid=2769, Unknown=6, NotChecked=560, Total=3660 [2024-11-28 02:34:42,914 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 1062 mSDsluCounter, 3660 mSDsCounter, 0 mSdLazyCounter, 8045 mSolverCounterSat, 611 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 214.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 11504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 8045 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 2824 IncrementalHoareTripleChecker+Unchecked, 222.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:34:42,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 3890 Invalid, 11504 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [611 Valid, 8045 Invalid, 24 Unknown, 2824 Unchecked, 222.9s Time] [2024-11-28 02:34:42,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-11-28 02:34:42,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 593. [2024-11-28 02:34:42,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 421 states have (on average 1.2565320665083135) internal successors, (529), 426 states have internal predecessors, (529), 111 states have call successors, (111), 56 states have call predecessors, (111), 60 states have return successors, (123), 110 states have call predecessors, (123), 109 states have call successors, (123) [2024-11-28 02:34:42,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 763 transitions. [2024-11-28 02:34:42,981 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 763 transitions. Word has length 177 [2024-11-28 02:34:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:34:42,982 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 763 transitions. [2024-11-28 02:34:42,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 4.766666666666667) internal successors, (143), 28 states have internal predecessors, (143), 18 states have call successors, (50), 11 states have call predecessors, (50), 13 states have return successors, (47), 18 states have call predecessors, (47), 18 states have call successors, (47) [2024-11-28 02:34:42,982 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 763 transitions. [2024-11-28 02:34:42,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-28 02:34:42,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:34:42,986 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:34:43,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:34:43,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:34:43,187 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:34:43,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:34:43,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1912638931, now seen corresponding path program 1 times [2024-11-28 02:34:43,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:34:43,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041098883] [2024-11-28 02:34:43,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:34:43,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:34:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:34:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 02:34:54,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:34:54,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041098883] [2024-11-28 02:34:54,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041098883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:34:54,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954589873] [2024-11-28 02:34:54,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:34:54,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:34:54,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:34:54,664 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:34:54,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:35:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:35:02,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 4790 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 02:35:02,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:35:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-28 02:35:03,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:35:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 02:35:08,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954589873] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:35:08,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:35:08,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6, 7] total 17 [2024-11-28 02:35:08,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317267831] [2024-11-28 02:35:08,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:35:08,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 02:35:08,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:35:08,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 02:35:08,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:35:08,023 INFO L87 Difference]: Start difference. First operand 593 states and 763 transitions. Second operand has 17 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 9 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-28 02:35:14,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:35:14,500 INFO L93 Difference]: Finished difference Result 1055 states and 1367 transitions. [2024-11-28 02:35:14,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:35:14,501 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 9 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) Word has length 197 [2024-11-28 02:35:14,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:35:14,506 INFO L225 Difference]: With dead ends: 1055 [2024-11-28 02:35:14,507 INFO L226 Difference]: Without dead ends: 606 [2024-11-28 02:35:14,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:35:14,509 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 144 mSDsluCounter, 5286 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 5784 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:35:14,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 5784 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 02:35:14,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-28 02:35:14,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 589. [2024-11-28 02:35:14,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 418 states have (on average 1.255980861244019) internal successors, (525), 423 states have internal predecessors, (525), 111 states have call successors, (111), 55 states have call predecessors, (111), 59 states have return successors, (119), 110 states have call predecessors, (119), 109 states have call successors, (119) [2024-11-28 02:35:14,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 755 transitions. [2024-11-28 02:35:14,584 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 755 transitions. Word has length 197 [2024-11-28 02:35:14,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:35:14,585 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 755 transitions. [2024-11-28 02:35:14,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.1875) internal successors, (115), 15 states have internal predecessors, (115), 9 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-28 02:35:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 755 transitions. [2024-11-28 02:35:14,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 02:35:14,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:35:14,589 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:35:14,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:35:14,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:35:14,790 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:35:14,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:35:14,790 INFO L85 PathProgramCache]: Analyzing trace with hash 633872195, now seen corresponding path program 1 times [2024-11-28 02:35:14,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:35:14,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9527012] [2024-11-28 02:35:14,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:35:14,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:35:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:35:20,749 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-28 02:35:20,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:35:20,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9527012] [2024-11-28 02:35:20,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9527012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:35:20,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:35:20,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:35:20,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326241858] [2024-11-28 02:35:20,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:35:20,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:35:20,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:35:20,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:35:20,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:35:20,751 INFO L87 Difference]: Start difference. First operand 589 states and 755 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 02:35:21,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:35:21,041 INFO L93 Difference]: Finished difference Result 666 states and 847 transitions. [2024-11-28 02:35:21,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:35:21,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 188 [2024-11-28 02:35:21,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:35:21,047 INFO L225 Difference]: With dead ends: 666 [2024-11-28 02:35:21,047 INFO L226 Difference]: Without dead ends: 594 [2024-11-28 02:35:21,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:35:21,048 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 0 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:35:21,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2076 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:35:21,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-28 02:35:21,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2024-11-28 02:35:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 422 states have (on average 1.2535545023696681) internal successors, (529), 427 states have internal predecessors, (529), 111 states have call successors, (111), 55 states have call predecessors, (111), 60 states have return successors, (121), 111 states have call predecessors, (121), 109 states have call successors, (121) [2024-11-28 02:35:21,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 761 transitions. [2024-11-28 02:35:21,115 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 761 transitions. Word has length 188 [2024-11-28 02:35:21,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:35:21,116 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 761 transitions. [2024-11-28 02:35:21,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 02:35:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 761 transitions. [2024-11-28 02:35:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-28 02:35:21,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:35:21,119 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:35:21,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:35:21,119 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:35:21,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:35:21,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1790754754, now seen corresponding path program 1 times [2024-11-28 02:35:21,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:35:21,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330176220] [2024-11-28 02:35:21,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:35:21,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:35:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:35:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-28 02:35:30,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:35:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330176220] [2024-11-28 02:35:30,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330176220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:35:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480742658] [2024-11-28 02:35:30,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:35:30,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:35:30,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:35:30,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:35:30,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1128e4d0-405c-431f-8884-e7951969db47/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:35:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:35:39,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 4765 conjuncts, 140 conjuncts are in the unsatisfiable core [2024-11-28 02:35:39,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:35:43,605 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 15 treesize of output 1 [2024-11-28 02:35:43,642 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 15 treesize of output 1 [2024-11-28 02:35:43,703 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 32 treesize of output 28 [2024-11-28 02:35:43,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:35:43,749 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 28 treesize of output 23 [2024-11-28 02:35:43,780 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 19 treesize of output 5 [2024-11-28 02:35:48,241 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_24| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_24| Int)) (<= (+ 2 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_24|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_24|)) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_24|)) is different from true [2024-11-28 02:35:54,543 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_25| Int) (|v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_25| Int)) (<= (+ (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_25|) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.offset_BEFORE_CALL_25|) 2) |v_ULTIMATE.start_aws_hash_table_create_harness_~#map~0#1.base_BEFORE_CALL_25|)) is different from true [2024-11-28 02:36:07,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:36:07,383 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 23 treesize of output 23 [2024-11-28 02:36:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 99 proven. 37 refuted. 15 times theorem prover too weak. 84 trivial. 34 not checked. [2024-11-28 02:36:08,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:36:30,222 INFO L349 Elim1Store]: treesize reduction 4, result has 93.8 percent of original size [2024-11-28 02:36:30,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 92 [2024-11-28 02:36:41,496 INFO L349 Elim1Store]: treesize reduction 4, result has 93.8 percent of original size [2024-11-28 02:36:41,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 92 [2024-11-28 02:36:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 45 proven. 23 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-28 02:36:47,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480742658] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:36:47,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:36:47,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 29, 21] total 49 [2024-11-28 02:36:47,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888897685] [2024-11-28 02:36:47,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:36:47,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-28 02:36:47,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:36:47,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-28 02:36:47,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=2040, Unknown=2, NotChecked=182, Total=2352 [2024-11-28 02:36:47,396 INFO L87 Difference]: Start difference. First operand 594 states and 761 transitions. Second operand has 49 states, 40 states have (on average 4.925) internal successors, (197), 40 states have internal predecessors, (197), 23 states have call successors, (74), 10 states have call predecessors, (74), 17 states have return successors, (67), 18 states have call predecessors, (67), 19 states have call successors, (67) [2024-11-28 02:36:51,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:36:55,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:00,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:04,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:09,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:37:13,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:18,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:22,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:37:26,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:31,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:35,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:39,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:44,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:48,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:53,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:37:57,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:38:01,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:38:06,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 02:38:10,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 02:38:14,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:38:19,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:38:23,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:38:27,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:38:32,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:38:36,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:38:40,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:38:45,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:38:49,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:39:03,182 WARN L539 Checker$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 02:39:14,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:39:19,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:39:28,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:39:34,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:39:39,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:40:20,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]