./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_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_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/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_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/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_4d28024a-db58-4086-bf01-e52e17a977ba/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 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:09:26,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:09:26,671 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 05:09:26,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:09:26,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:09:26,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:09:26,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:09:26,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:09:26,713 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:09:26,713 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:09:26,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:09:26,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:09:26,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:09:26,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:09:26,715 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:09:26,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:09:26,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:09:26,715 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:09:26,716 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:09:26,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:09:26,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:09:26,716 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:09:26,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:09:26,717 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:09:26,717 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:09:26,717 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:09:26,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:09:26,717 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:09:26,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:09:26,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:09:26,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:09:26,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:09:26,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:09:26,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:09:26,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:09:26,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:09:26,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:09:26,719 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:09:26,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:09:26,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:09:26,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:09:26,719 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:09:26,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:09:26,720 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:09:26,720 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:09:26,720 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_4d28024a-db58-4086-bf01-e52e17a977ba/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 -> 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 [2024-11-28 05:09:27,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:09:27,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:09:27,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:09:27,110 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:09:27,110 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:09:27,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2024-11-28 05:09:30,857 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/data/6fbb3d4d2/e4ef097665124cab80b939f51d2efee0/FLAG5f7d45201 [2024-11-28 05:09:31,801 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:09:31,802 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2024-11-28 05:09:31,848 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/data/6fbb3d4d2/e4ef097665124cab80b939f51d2efee0/FLAG5f7d45201 [2024-11-28 05:09:31,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/data/6fbb3d4d2/e4ef097665124cab80b939f51d2efee0 [2024-11-28 05:09:31,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:09:31,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:09:31,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:09:31,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:09:31,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:09:31,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:09:31" (1/1) ... [2024-11-28 05:09:31,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144177fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:31, skipping insertion in model container [2024-11-28 05:09:31,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:09:31" (1/1) ... [2024-11-28 05:09:32,012 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:09:32,411 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_4d28024a-db58-4086-bf01-e52e17a977ba/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4494,4507] [2024-11-28 05:09:32,421 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_4d28024a-db58-4086-bf01-e52e17a977ba/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4554,4567] [2024-11-28 05:09:33,894 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,895 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,896 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,897 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,898 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,917 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,918 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,921 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,922 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,925 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,926 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,927 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:33,928 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,705 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,707 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,750 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,752 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,762 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,762 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,789 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,790 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,792 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,793 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,793 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,794 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,794 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,847 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_4d28024a-db58-4086-bf01-e52e17a977ba/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[227989,228002] [2024-11-28 05:09:35,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:09:35,909 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:09:35,926 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_4d28024a-db58-4086-bf01-e52e17a977ba/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4494,4507] [2024-11-28 05:09:35,927 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_4d28024a-db58-4086-bf01-e52e17a977ba/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4554,4567] [2024-11-28 05:09:35,979 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,982 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,982 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,983 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,983 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,996 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,997 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,998 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:35,998 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,002 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,003 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,004 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,005 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2024-11-28 05:09:36,302 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,303 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,312 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,313 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,316 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,317 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,328 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,329 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,330 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,333 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,333 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,335 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,336 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:09:36,367 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_4d28024a-db58-4086-bf01-e52e17a977ba/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[227989,228002] [2024-11-28 05:09:36,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:09:36,751 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:09:36,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36 WrapperNode [2024-11-28 05:09:36,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:09:36,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:09:36,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:09:36,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:09:36,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:36,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:36,981 INFO L138 Inliner]: procedures = 763, calls = 2455, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 749 [2024-11-28 05:09:36,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:09:36,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:09:36,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:09:36,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:09:37,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,157 INFO L175 MemorySlicer]: Split 348 memory accesses to 9 slices as follows [2, 2, 40, 13, 2, 45, 1, 238, 5]. 68 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 9, 0, 0, 0, 0, 6, 5]. The 246 writes are split as follows [0, 1, 4, 1, 1, 6, 1, 232, 0]. [2024-11-28 05:09:37,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,246 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:09:37,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:09:37,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:09:37,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:09:37,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (1/1) ... [2024-11-28 05:09:37,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:09:37,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:09:37,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:09:37,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:09:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-28 05:09:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-28 05:09:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 05:09:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 05:09:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 05:09:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 05:09:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 05:09:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 05:09:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 05:09:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 05:09:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:09:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:09:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-28 05:09:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-28 05:09:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:09:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:09:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-28 05:09:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-28 05:09:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:09:37,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:09:37,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:09:37,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 05:09:37,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 05:09:37,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 05:09:37,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 05:09:37,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 05:09:37,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 05:09:37,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 05:09:37,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 05:09:37,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:09:37,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:09:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 05:09:37,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 05:09:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 05:09:37,435 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 05:09:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 05:09:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 05:09:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 05:09:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 05:09:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 05:09:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 05:09:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 05:09:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 05:09:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-28 05:09:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 05:09:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 05:09:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 05:09:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-28 05:09:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-28 05:09:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-28 05:09:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-28 05:09:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-28 05:09:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-28 05:09:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:09:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:09:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2024-11-28 05:09:37,439 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-28 05:09:37,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 05:09:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-28 05:09:37,439 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-28 05:09:37,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 05:09:37,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 05:09:37,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 05:09:37,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 05:09:37,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 05:09:37,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 05:09:37,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 05:09:37,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 05:09:37,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 05:09:37,444 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 05:09:37,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 05:09:37,444 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-28 05:09:37,444 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-28 05:09:37,445 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 05:09:37,445 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2024-11-28 05:09:37,446 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 05:09:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_delete [2024-11-28 05:09:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_delete [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 05:09:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-28 05:09:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-28 05:09:38,188 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:09:38,191 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:09:38,337 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 05:09:38,344 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 05:09:38,589 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2024-11-28 05:09:38,589 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2024-11-28 05:09:38,589 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume !false; [2024-11-28 05:09:38,589 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume false; [2024-11-28 05:09:45,720 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2024-11-28 05:09:45,721 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:09:45,747 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:09:45,751 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-28 05:09:45,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:09:45 BoogieIcfgContainer [2024-11-28 05:09:45,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:09:45,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:09:45,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:09:45,768 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:09:45,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:09:31" (1/3) ... [2024-11-28 05:09:45,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@866bda4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:09:45, skipping insertion in model container [2024-11-28 05:09:45,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:36" (2/3) ... [2024-11-28 05:09:45,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@866bda4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:09:45, skipping insertion in model container [2024-11-28 05:09:45,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:09:45" (3/3) ... [2024-11-28 05:09:45,771 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_delete_harness.i [2024-11-28 05:09:45,791 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:09:45,793 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_delete_harness.i that has 28 procedures, 255 locations, 1 initial locations, 13 loop locations, and 1 error locations. [2024-11-28 05:09:45,890 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:09:45,906 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;@678a829, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:09:45,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:09:45,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 149 states have internal predecessors, (193), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 05:09:45,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-28 05:09:45,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:45,933 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:45,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:45,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:45,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1747756472, now seen corresponding path program 1 times [2024-11-28 05:09:45,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:45,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999018117] [2024-11-28 05:09:45,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:45,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:56,732 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2024-11-28 05:09:56,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:56,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999018117] [2024-11-28 05:09:56,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999018117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:09:56,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10240968] [2024-11-28 05:09:56,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:56,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:09:56,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:09:56,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:09:56,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:10:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:05,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 4548 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:10:05,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-28 05:10:05,632 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:05,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10240968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:05,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:10:05,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 05:10:05,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539293055] [2024-11-28 05:10:05,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:05,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:10:05,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:05,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:10:05,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:10:05,675 INFO L87 Difference]: Start difference. First operand has 223 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 149 states have internal predecessors, (193), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 05:10:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:05,736 INFO L93 Difference]: Finished difference Result 441 states and 636 transitions. [2024-11-28 05:10:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:10:05,739 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2024-11-28 05:10:05,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:05,750 INFO L225 Difference]: With dead ends: 441 [2024-11-28 05:10:05,750 INFO L226 Difference]: Without dead ends: 218 [2024-11-28 05:10:05,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 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 05:10:05,760 INFO L435 NwaCegarLoop]: 292 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, 292 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 05:10:05,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:10:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-28 05:10:05,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-28 05:10:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 144 states have (on average 1.25) internal successors, (180), 145 states have internal predecessors, (180), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 05:10:05,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2024-11-28 05:10:05,840 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 203 [2024-11-28 05:10:05,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:05,841 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2024-11-28 05:10:05,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 05:10:05,842 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2024-11-28 05:10:05,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-28 05:10:05,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:05,848 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:05,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:10:06,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 05:10:06,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:10:06,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:06,051 INFO L85 PathProgramCache]: Analyzing trace with hash 898608514, now seen corresponding path program 1 times [2024-11-28 05:10:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:06,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316288128] [2024-11-28 05:10:06,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:06,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-11-28 05:10:14,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:14,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316288128] [2024-11-28 05:10:14,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316288128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:14,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:14,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:10:14,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265195129] [2024-11-28 05:10:14,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:14,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:10:14,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:14,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:10:14,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:10:14,547 INFO L87 Difference]: Start difference. First operand 218 states and 287 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 05:10:14,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:14,718 INFO L93 Difference]: Finished difference Result 399 states and 529 transitions. [2024-11-28 05:10:14,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:10:14,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2024-11-28 05:10:14,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:14,722 INFO L225 Difference]: With dead ends: 399 [2024-11-28 05:10:14,723 INFO L226 Difference]: Without dead ends: 223 [2024-11-28 05:10:14,724 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 05:10:14,725 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 0 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:14,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1132 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:10:14,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-28 05:10:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2024-11-28 05:10:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 148 states have (on average 1.2432432432432432) internal successors, (184), 149 states have internal predecessors, (184), 54 states have call successors, (54), 19 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 53 states have call successors, (54) [2024-11-28 05:10:14,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 292 transitions. [2024-11-28 05:10:14,752 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 292 transitions. Word has length 203 [2024-11-28 05:10:14,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:14,752 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 292 transitions. [2024-11-28 05:10:14,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 05:10:14,753 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 292 transitions. [2024-11-28 05:10:14,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-28 05:10:14,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:14,758 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:14,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:10:14,758 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:10:14,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1706772534, now seen corresponding path program 1 times [2024-11-28 05:10:14,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:14,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121725167] [2024-11-28 05:10:14,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:14,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-11-28 05:10:27,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:27,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121725167] [2024-11-28 05:10:27,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121725167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:27,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:27,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:10:27,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925133702] [2024-11-28 05:10:27,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:27,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:10:27,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:27,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:10:27,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:10:27,660 INFO L87 Difference]: Start difference. First operand 223 states and 292 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-28 05:10:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:29,181 INFO L93 Difference]: Finished difference Result 393 states and 522 transitions. [2024-11-28 05:10:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:10:29,182 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 209 [2024-11-28 05:10:29,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:29,187 INFO L225 Difference]: With dead ends: 393 [2024-11-28 05:10:29,187 INFO L226 Difference]: Without dead ends: 231 [2024-11-28 05:10:29,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:10:29,189 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 22 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:29,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1816 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 05:10:29,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-28 05:10:29,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2024-11-28 05:10:29,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 152 states have (on average 1.243421052631579) internal successors, (189), 154 states have internal predecessors, (189), 54 states have call successors, (54), 19 states have call predecessors, (54), 21 states have return successors, (55), 54 states have call predecessors, (55), 53 states have call successors, (55) [2024-11-28 05:10:29,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 298 transitions. [2024-11-28 05:10:29,214 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 298 transitions. Word has length 209 [2024-11-28 05:10:29,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:29,215 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 298 transitions. [2024-11-28 05:10:29,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-28 05:10:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 298 transitions. [2024-11-28 05:10:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-28 05:10:29,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:29,220 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:29,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:10:29,220 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:10:29,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:29,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1166343028, now seen corresponding path program 1 times [2024-11-28 05:10:29,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:29,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030097634] [2024-11-28 05:10:29,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:29,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:37,671 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-11-28 05:10:37,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:37,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030097634] [2024-11-28 05:10:37,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030097634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:37,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:37,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:10:37,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775942684] [2024-11-28 05:10:37,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:37,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:10:37,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:37,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:10:37,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:10:37,676 INFO L87 Difference]: Start difference. First operand 228 states and 298 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-28 05:10:37,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:37,977 INFO L93 Difference]: Finished difference Result 400 states and 530 transitions. [2024-11-28 05:10:37,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:10:37,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 209 [2024-11-28 05:10:37,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:37,982 INFO L225 Difference]: With dead ends: 400 [2024-11-28 05:10:37,982 INFO L226 Difference]: Without dead ends: 233 [2024-11-28 05:10:37,983 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 05:10:37,985 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 21 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:37,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 805 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:10:37,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-28 05:10:38,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2024-11-28 05:10:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 153 states have (on average 1.2418300653594772) internal successors, (190), 155 states have internal predecessors, (190), 55 states have call successors, (55), 19 states have call predecessors, (55), 21 states have return successors, (56), 55 states have call predecessors, (56), 54 states have call successors, (56) [2024-11-28 05:10:38,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 301 transitions. [2024-11-28 05:10:38,011 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 301 transitions. Word has length 209 [2024-11-28 05:10:38,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:38,011 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 301 transitions. [2024-11-28 05:10:38,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-28 05:10:38,012 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 301 transitions. [2024-11-28 05:10:38,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-28 05:10:38,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:38,016 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:10:38,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:10:38,017 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:10:38,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:38,017 INFO L85 PathProgramCache]: Analyzing trace with hash 209901495, now seen corresponding path program 1 times [2024-11-28 05:10:38,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:38,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811740126] [2024-11-28 05:10:38,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:38,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2024-11-28 05:10:47,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:47,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811740126] [2024-11-28 05:10:47,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811740126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:10:47,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709844002] [2024-11-28 05:10:47,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:47,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:47,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:47,783 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:47,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:10:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:55,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 4576 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 05:10:55,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:56,488 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-28 05:10:56,488 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:56,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709844002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:56,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:10:56,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2024-11-28 05:10:56,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598139076] [2024-11-28 05:10:56,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:56,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:10:56,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:56,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:10:56,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:10:56,492 INFO L87 Difference]: Start difference. First operand 230 states and 301 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-28 05:10:58,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:58,259 INFO L93 Difference]: Finished difference Result 409 states and 545 transitions. [2024-11-28 05:10:58,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:10:58,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 215 [2024-11-28 05:10:58,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:58,263 INFO L225 Difference]: With dead ends: 409 [2024-11-28 05:10:58,264 INFO L226 Difference]: Without dead ends: 240 [2024-11-28 05:10:58,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:10:58,266 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:58,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2072 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 05:10:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-28 05:10:58,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 232. [2024-11-28 05:10:58,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 154 states have (on average 1.2402597402597402) internal successors, (191), 157 states have internal predecessors, (191), 55 states have call successors, (55), 19 states have call predecessors, (55), 22 states have return successors, (62), 55 states have call predecessors, (62), 54 states have call successors, (62) [2024-11-28 05:10:58,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 308 transitions. [2024-11-28 05:10:58,289 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 308 transitions. Word has length 215 [2024-11-28 05:10:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:58,290 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 308 transitions. [2024-11-28 05:10:58,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-28 05:10:58,291 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 308 transitions. [2024-11-28 05:10:58,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 05:10:58,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:58,295 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:58,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:10:58,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:58,496 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:10:58,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:58,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1193612132, now seen corresponding path program 1 times [2024-11-28 05:10:58,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:58,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745810571] [2024-11-28 05:10:58,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:58,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:12,230 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-28 05:11:12,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:12,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745810571] [2024-11-28 05:11:12,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745810571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:12,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955290077] [2024-11-28 05:11:12,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:12,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:12,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:12,234 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:12,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:11:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:21,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 4608 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-28 05:11:21,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:22,693 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 11 treesize of output 7 [2024-11-28 05:11:25,819 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-28 05:11:25,820 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 15 treesize of output 7 [2024-11-28 05:11:31,713 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 05:11:31,745 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 11 treesize of output 7 [2024-11-28 05:11:39,697 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 24 treesize of output 16 [2024-11-28 05:11:39,724 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 16 treesize of output 8 [2024-11-28 05:11:39,859 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 552 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 05:11:39,859 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:42,147 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 8 treesize of output 4 [2024-11-28 05:11:44,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955290077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:44,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:11:44,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 23] total 30 [2024-11-28 05:11:44,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788051407] [2024-11-28 05:11:44,412 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:44,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 05:11:44,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:44,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 05:11:44,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 05:11:44,417 INFO L87 Difference]: Start difference. First operand 232 states and 308 transitions. Second operand has 30 states, 28 states have (on average 5.142857142857143) internal successors, (144), 25 states have internal predecessors, (144), 15 states have call successors, (69), 8 states have call predecessors, (69), 10 states have return successors, (65), 14 states have call predecessors, (65), 14 states have call successors, (65) [2024-11-28 05:12:10,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:10,010 INFO L93 Difference]: Finished difference Result 416 states and 541 transitions. [2024-11-28 05:12:10,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 05:12:10,011 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 5.142857142857143) internal successors, (144), 25 states have internal predecessors, (144), 15 states have call successors, (69), 8 states have call predecessors, (69), 10 states have return successors, (65), 14 states have call predecessors, (65), 14 states have call successors, (65) Word has length 222 [2024-11-28 05:12:10,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:10,017 INFO L225 Difference]: With dead ends: 416 [2024-11-28 05:12:10,017 INFO L226 Difference]: Without dead ends: 290 [2024-11-28 05:12:10,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 325 SyntacticMatches, 28 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=335, Invalid=3205, Unknown=0, NotChecked=0, Total=3540 [2024-11-28 05:12:10,023 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 526 mSDsluCounter, 4232 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 4490 SdHoareTripleChecker+Invalid, 2664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:10,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 4490 Invalid, 2664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [242 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2024-11-28 05:12:10,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-28 05:12:10,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 271. [2024-11-28 05:12:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 186 states have (on average 1.2150537634408602) internal successors, (226), 187 states have internal predecessors, (226), 56 states have call successors, (56), 27 states have call predecessors, (56), 28 states have return successors, (59), 56 states have call predecessors, (59), 55 states have call successors, (59) [2024-11-28 05:12:10,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 341 transitions. [2024-11-28 05:12:10,067 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 341 transitions. Word has length 222 [2024-11-28 05:12:10,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:10,069 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 341 transitions. [2024-11-28 05:12:10,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 5.142857142857143) internal successors, (144), 25 states have internal predecessors, (144), 15 states have call successors, (69), 8 states have call predecessors, (69), 10 states have return successors, (65), 14 states have call predecessors, (65), 14 states have call successors, (65) [2024-11-28 05:12:10,071 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 341 transitions. [2024-11-28 05:12:10,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 05:12:10,079 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:10,080 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:10,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:12:10,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 05:12:10,280 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:10,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:10,281 INFO L85 PathProgramCache]: Analyzing trace with hash 493069039, now seen corresponding path program 2 times [2024-11-28 05:12:10,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:10,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333919125] [2024-11-28 05:12:10,282 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:12:10,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:18,230 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:12:18,233 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:12:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2024-11-28 05:12:26,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:26,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333919125] [2024-11-28 05:12:26,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333919125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:26,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:26,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 05:12:26,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186966433] [2024-11-28 05:12:26,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:26,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 05:12:26,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:26,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 05:12:26,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:12:26,151 INFO L87 Difference]: Start difference. First operand 271 states and 341 transitions. Second operand has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 12 states have internal predecessors, (83), 9 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) [2024-11-28 05:12:31,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:31,768 INFO L93 Difference]: Finished difference Result 379 states and 483 transitions. [2024-11-28 05:12:31,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 05:12:31,769 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 12 states have internal predecessors, (83), 9 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) Word has length 229 [2024-11-28 05:12:31,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:31,773 INFO L225 Difference]: With dead ends: 379 [2024-11-28 05:12:31,774 INFO L226 Difference]: Without dead ends: 276 [2024-11-28 05:12:31,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:12:31,776 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 131 mSDsluCounter, 2682 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:31,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2936 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 05:12:31,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-28 05:12:31,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 271. [2024-11-28 05:12:31,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 186 states have (on average 1.2150537634408602) internal successors, (226), 187 states have internal predecessors, (226), 56 states have call successors, (56), 27 states have call predecessors, (56), 28 states have return successors, (57), 56 states have call predecessors, (57), 55 states have call successors, (57) [2024-11-28 05:12:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 339 transitions. [2024-11-28 05:12:31,812 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 339 transitions. Word has length 229 [2024-11-28 05:12:31,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:31,814 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 339 transitions. [2024-11-28 05:12:31,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 12 states have internal predecessors, (83), 9 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) [2024-11-28 05:12:31,814 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 339 transitions. [2024-11-28 05:12:31,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-28 05:12:31,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:31,819 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:31,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:12:31,820 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:31,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:31,824 INFO L85 PathProgramCache]: Analyzing trace with hash 222833826, now seen corresponding path program 1 times [2024-11-28 05:12:31,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:31,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668105110] [2024-11-28 05:12:31,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:31,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:41,914 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 41 proven. 15 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2024-11-28 05:12:41,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:41,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668105110] [2024-11-28 05:12:41,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668105110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:41,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919368483] [2024-11-28 05:12:41,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:41,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:41,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:41,922 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:41,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:12:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:51,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 4672 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 05:12:51,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:56,022 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 11 treesize of output 5 [2024-11-28 05:12:56,350 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 283 proven. 41 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-11-28 05:12:56,350 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:01,529 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-28 05:13:01,530 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 35 treesize of output 24 [2024-11-28 05:13:02,996 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 64 proven. 12 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-11-28 05:13:02,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919368483] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:02,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:02,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 16, 12] total 26 [2024-11-28 05:13:02,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060264484] [2024-11-28 05:13:02,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:02,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 05:13:02,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:03,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 05:13:03,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:13:03,000 INFO L87 Difference]: Start difference. First operand 271 states and 339 transitions. Second operand has 26 states, 21 states have (on average 6.428571428571429) internal successors, (135), 24 states have internal predecessors, (135), 10 states have call successors, (58), 4 states have call predecessors, (58), 10 states have return successors, (56), 8 states have call predecessors, (56), 10 states have call successors, (56) [2024-11-28 05:13:09,508 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 05:13:16,750 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 05:13:30,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:30,523 INFO L93 Difference]: Finished difference Result 619 states and 830 transitions. [2024-11-28 05:13:30,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 05:13:30,524 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 6.428571428571429) internal successors, (135), 24 states have internal predecessors, (135), 10 states have call successors, (58), 4 states have call predecessors, (58), 10 states have return successors, (56), 8 states have call predecessors, (56), 10 states have call successors, (56) Word has length 236 [2024-11-28 05:13:30,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:30,529 INFO L225 Difference]: With dead ends: 619 [2024-11-28 05:13:30,530 INFO L226 Difference]: Without dead ends: 478 [2024-11-28 05:13:30,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 451 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=213, Invalid=2043, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 05:13:30,533 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 257 mSDsluCounter, 4099 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 73 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 4391 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:30,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 4391 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1775 Invalid, 2 Unknown, 0 Unchecked, 22.4s Time] [2024-11-28 05:13:30,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-28 05:13:30,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 460. [2024-11-28 05:13:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 315 states have (on average 1.2222222222222223) internal successors, (385), 321 states have internal predecessors, (385), 94 states have call successors, (94), 41 states have call predecessors, (94), 50 states have return successors, (126), 97 states have call predecessors, (126), 92 states have call successors, (126) [2024-11-28 05:13:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 605 transitions. [2024-11-28 05:13:30,615 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 605 transitions. Word has length 236 [2024-11-28 05:13:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:30,615 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 605 transitions. [2024-11-28 05:13:30,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 6.428571428571429) internal successors, (135), 24 states have internal predecessors, (135), 10 states have call successors, (58), 4 states have call predecessors, (58), 10 states have return successors, (56), 8 states have call predecessors, (56), 10 states have call successors, (56) [2024-11-28 05:13:30,616 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 605 transitions. [2024-11-28 05:13:30,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-28 05:13:30,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:30,621 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:30,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:30,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:30,821 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:30,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:30,822 INFO L85 PathProgramCache]: Analyzing trace with hash -484976652, now seen corresponding path program 1 times [2024-11-28 05:13:30,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:30,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619800377] [2024-11-28 05:13:30,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:30,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2024-11-28 05:13:38,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:38,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619800377] [2024-11-28 05:13:38,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619800377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:38,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:38,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:38,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587112350] [2024-11-28 05:13:38,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:38,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:38,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:38,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:38,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:38,582 INFO L87 Difference]: Start difference. First operand 460 states and 605 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 5 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-28 05:13:39,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:39,326 INFO L93 Difference]: Finished difference Result 599 states and 783 transitions. [2024-11-28 05:13:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:13:39,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 5 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) Word has length 250 [2024-11-28 05:13:39,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:39,328 INFO L225 Difference]: With dead ends: 599 [2024-11-28 05:13:39,328 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 05:13:39,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:13:39,332 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 36 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:39,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 928 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:13:39,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 05:13:39,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 05:13:39,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:13:39,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 05:13:39,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 250 [2024-11-28 05:13:39,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:39,334 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:13:39,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 5 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 5 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-28 05:13:39,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 05:13:39,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 05:13:39,338 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 05:13:39,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:13:39,344 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:39,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 05:13:59,323 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:13:59,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:13:59 BoogieIcfgContainer [2024-11-28 05:13:59,337 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:13:59,338 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:13:59,338 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:13:59,338 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:13:59,339 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:09:45" (3/4) ... [2024-11-28 05:13:59,342 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_table_is_valid [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure s_remove_entry [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_required_bytes [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#5 [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#4 [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#7 [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_is_valid [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#6 [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#1 [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2024-11-28 05:13:59,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#0 [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#3 [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#2 [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#8 [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_is_valid [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2024-11-28 05:13:59,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_is_power_of_two [2024-11-28 05:13:59,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2024-11-28 05:13:59,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_delete [2024-11-28 05:13:59,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 05:13:59,379 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 151 nodes and edges [2024-11-28 05:13:59,383 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-11-28 05:13:59,384 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-28 05:13:59,386 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-28 05:13:59,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 05:13:59,388 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 05:13:59,389 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 05:13:59,391 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 05:14:00,175 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:14:00,176 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:14:00,176 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:14:00,177 INFO L158 Benchmark]: Toolchain (without parser) took 268304.13ms. Allocated memory was 142.6MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 90.8MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-28 05:14:00,177 INFO L158 Benchmark]: CDTParser took 1.76ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:14:00,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4877.52ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 90.5MB in the beginning and 51.6MB in the end (delta: 38.8MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. [2024-11-28 05:14:00,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 228.62ms. Allocated memory is still 151.0MB. Free memory was 51.6MB in the beginning and 39.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:14:00,178 INFO L158 Benchmark]: Boogie Preprocessor took 344.98ms. Allocated memory was 151.0MB in the beginning and 411.0MB in the end (delta: 260.0MB). Free memory was 39.3MB in the beginning and 326.4MB in the end (delta: -287.1MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-11-28 05:14:00,178 INFO L158 Benchmark]: RCFGBuilder took 8423.76ms. Allocated memory is still 411.0MB. Free memory was 325.5MB in the beginning and 251.5MB in the end (delta: 74.1MB). Peak memory consumption was 150.6MB. Max. memory is 16.1GB. [2024-11-28 05:14:00,179 INFO L158 Benchmark]: TraceAbstraction took 253582.63ms. Allocated memory was 411.0MB in the beginning and 3.0GB in the end (delta: 2.6GB). Free memory was 248.8MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-28 05:14:00,179 INFO L158 Benchmark]: Witness Printer took 838.30ms. Allocated memory is still 3.0GB. Free memory was 1.4GB in the beginning and 1.2GB in the end (delta: 134.1MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2024-11-28 05:14:00,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.76ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4877.52ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 90.5MB in the beginning and 51.6MB in the end (delta: 38.8MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 228.62ms. Allocated memory is still 151.0MB. Free memory was 51.6MB in the beginning and 39.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 344.98ms. Allocated memory was 151.0MB in the beginning and 411.0MB in the end (delta: 260.0MB). Free memory was 39.3MB in the beginning and 326.4MB in the end (delta: -287.1MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * RCFGBuilder took 8423.76ms. Allocated memory is still 411.0MB. Free memory was 325.5MB in the beginning and 251.5MB in the end (delta: 74.1MB). Peak memory consumption was 150.6MB. Max. memory is 16.1GB. * TraceAbstraction took 253582.63ms. Allocated memory was 411.0MB in the beginning and 3.0GB in the end (delta: 2.6GB). Free memory was 248.8MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 838.30ms. Allocated memory is still 3.0GB. Free memory was 1.4GB in the beginning and 1.2GB in the end (delta: 134.1MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7558]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 255 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 233.5s, OverallIterations: 9, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 63.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 1046 SdHoareTripleChecker+Valid, 50.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 993 mSDsluCounter, 18862 SdHoareTripleChecker+Invalid, 49.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16496 mSDsCounter, 368 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5294 IncrementalHoareTripleChecker+Invalid, 5664 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 368 mSolverCounterUnsat, 2366 mSDtfsCounter, 5294 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1389 GetRequests, 1200 SyntacticMatches, 31 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 38.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=8, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 56 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5s SsaConstructionTime, 6.8s SatisfiabilityAnalysisTime, 70.0s InterpolantComputationTime, 2852 NumberOfCodeBlocks, 2852 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3074 ConstructedInterpolants, 90 QuantifiedInterpolants, 6843 SizeOfPredicates, 31 NumberOfNonLiveVariables, 18404 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 9863/9980 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9639]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9142]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9640]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 05:14:00,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d28024a-db58-4086-bf01-e52e17a977ba/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE