./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC --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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:26:09,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:26:09,645 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 18:26:09,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:26:09,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:26:09,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:26:09,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:26:09,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:26:09,693 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:26:09,693 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:26:09,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:26:09,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:26:09,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:26:09,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:26:09,696 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:26:09,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:26:09,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:26:09,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:26:09,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:26:09,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:26:09,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:26:09,697 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:26:09,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:26:09,697 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:26:09,698 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:26:09,698 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:26:09,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:09,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:09,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:09,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:09,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:26:09,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:09,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:09,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:09,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:09,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:26:09,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:26:09,700 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:26:09,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:26:09,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:26:09,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:26:09,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:26:09,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:26:09,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:26:09,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:26:09,701 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_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC 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 -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2024-11-23 18:26:10,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:26:10,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:26:10,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:26:10,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:26:10,032 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:26:10,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2024-11-23 18:26:13,057 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/data/040f2b1ed/cf57dc3641c645bb99e3115c0b97674f/FLAG8189f41c0 [2024-11-23 18:26:13,720 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:26:13,721 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2024-11-23 18:26:13,781 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/data/040f2b1ed/cf57dc3641c645bb99e3115c0b97674f/FLAG8189f41c0 [2024-11-23 18:26:13,802 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/data/040f2b1ed/cf57dc3641c645bb99e3115c0b97674f [2024-11-23 18:26:13,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:26:13,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:26:13,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:13,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:26:13,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:26:13,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:13" (1/1) ... [2024-11-23 18:26:13,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9c3ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:13, skipping insertion in model container [2024-11-23 18:26:13,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:13" (1/1) ... [2024-11-23 18:26:13,942 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:26:14,250 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_f724015f-9b38-4890-80ee-4f1aba25566f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2024-11-23 18:26:14,258 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_f724015f-9b38-4890-80ee-4f1aba25566f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2024-11-23 18:26:15,368 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,368 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,369 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,370 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,371 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,386 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,387 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,390 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,391 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,394 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,397 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,399 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:15,401 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,139 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,143 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,156 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,164 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,273 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,274 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,275 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,275 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,275 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,276 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,277 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,277 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,277 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,278 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,278 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,279 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,279 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,282 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,282 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,283 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,283 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,286 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,287 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,295 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,295 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,296 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:16,385 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:26:16,399 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_f724015f-9b38-4890-80ee-4f1aba25566f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2024-11-23 18:26:16,400 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2024-11-23 18:26:16,444 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,445 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,445 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,446 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,446 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,454 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,454 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,455 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,456 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,457 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,458 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,458 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,459 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,590 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,591 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,593 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,600 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2024-11-23 18:26:16,635 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,636 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,637 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,637 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,637 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,638 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,638 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,639 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,639 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,639 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,640 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,640 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,641 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,641 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,642 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,642 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,642 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,647 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,648 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,654 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,659 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,659 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:26:16,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:16,870 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:26:16,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16 WrapperNode [2024-11-23 18:26:16,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:16,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:16,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:26:16,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:26:16,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:16,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,061 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 847 [2024-11-23 18:26:17,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:17,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:26:17,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:26:17,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:26:17,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,197 INFO L175 MemorySlicer]: Split 342 memory accesses to 6 slices as follows [238, 2, 66, 15, 3, 18]. 70 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [6, 2, 0, 4, 1, 5]. The 259 writes are split as follows [232, 0, 17, 3, 1, 6]. [2024-11-23 18:26:17,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,257 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,290 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,324 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:26:17,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:26:17,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:26:17,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:26:17,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (1/1) ... [2024-11-23 18:26:17,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:17,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:17,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:26:17,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:26:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-11-23 18:26:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-11-23 18:26:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-23 18:26:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-23 18:26:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 18:26:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-23 18:26:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-23 18:26:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-23 18:26:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-23 18:26:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-23 18:26:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-23 18:26:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-23 18:26:17,408 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 18:26:17,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 18:26:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-23 18:26:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:26:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-23 18:26:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-23 18:26:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-23 18:26:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-23 18:26:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-23 18:26:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-23 18:26:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-23 18:26:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:26:17,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-23 18:26:17,410 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2024-11-23 18:26:17,410 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-23 18:26:17,410 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-23 18:26:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-23 18:26:17,410 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-23 18:26:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-23 18:26:17,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-23 18:26:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 18:26:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 18:26:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 18:26:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 18:26:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 18:26:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 18:26:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-23 18:26:17,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-23 18:26:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-11-23 18:26:17,415 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-11-23 18:26:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-23 18:26:17,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-23 18:26:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:26:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 18:26:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 18:26:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 18:26:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 18:26:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 18:26:17,895 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:26:17,899 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:26:24,783 INFO L? ?]: Removed 205 outVars from TransFormulas that were not future-live. [2024-11-23 18:26:24,784 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:26:24,808 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:26:24,808 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-23 18:26:24,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:24 BoogieIcfgContainer [2024-11-23 18:26:24,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:26:24,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:26:24,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:26:24,816 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:26:24,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:26:13" (1/3) ... [2024-11-23 18:26:24,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265672e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:24, skipping insertion in model container [2024-11-23 18:26:24,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:16" (2/3) ... [2024-11-23 18:26:24,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265672e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:24, skipping insertion in model container [2024-11-23 18:26:24,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:24" (3/3) ... [2024-11-23 18:26:24,818 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2024-11-23 18:26:24,834 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:26:24,835 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_sift_down_harness.i that has 24 procedures, 327 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-23 18:26:24,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:26:24,911 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;@56dd061c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:26:24,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:26:24,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 327 states, 198 states have (on average 1.2323232323232323) internal successors, (244), 199 states have internal predecessors, (244), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-23 18:26:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-23 18:26:24,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:24,935 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:24,936 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:24,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1476906679, now seen corresponding path program 1 times [2024-11-23 18:26:24,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:24,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352895413] [2024-11-23 18:26:24,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:24,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-23 18:26:32,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:32,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352895413] [2024-11-23 18:26:32,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352895413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:26:32,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138940740] [2024-11-23 18:26:32,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:32,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:32,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:32,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:26:32,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:26:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:40,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 4489 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:26:40,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:26:40,458 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-23 18:26:40,459 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:26:40,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138940740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:40,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:26:40,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:26:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348836411] [2024-11-23 18:26:40,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:40,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:26:40,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:40,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:26:40,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:40,498 INFO L87 Difference]: Start difference. First operand has 327 states, 198 states have (on average 1.2323232323232323) internal successors, (244), 199 states have internal predecessors, (244), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-23 18:26:40,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:40,593 INFO L93 Difference]: Finished difference Result 631 states and 950 transitions. [2024-11-23 18:26:40,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:26:40,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2024-11-23 18:26:40,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:40,606 INFO L225 Difference]: With dead ends: 631 [2024-11-23 18:26:40,606 INFO L226 Difference]: Without dead ends: 322 [2024-11-23 18:26:40,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:40,616 INFO L435 NwaCegarLoop]: 445 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, 445 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 [2024-11-23 18:26:40,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:26:40,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-23 18:26:40,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-11-23 18:26:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 194 states have (on average 1.2010309278350515) internal successors, (233), 195 states have internal predecessors, (233), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-23 18:26:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 440 transitions. [2024-11-23 18:26:40,719 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 440 transitions. Word has length 156 [2024-11-23 18:26:40,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:40,721 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 440 transitions. [2024-11-23 18:26:40,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-23 18:26:40,721 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 440 transitions. [2024-11-23 18:26:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-23 18:26:40,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:40,728 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:40,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:26:40,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:40,929 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:40,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:40,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1310827779, now seen corresponding path program 1 times [2024-11-23 18:26:40,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:40,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805393191] [2024-11-23 18:26:40,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:40,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:48,200 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-23 18:26:48,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:48,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805393191] [2024-11-23 18:26:48,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805393191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:26:48,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488415077] [2024-11-23 18:26:48,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:48,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:48,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:48,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:26:48,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:26:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:54,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 4489 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 18:26:54,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:26:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-23 18:26:55,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:26:55,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488415077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:55,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:26:55,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-23 18:26:55,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230863717] [2024-11-23 18:26:55,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:55,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:26:55,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:55,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:26:55,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:26:55,212 INFO L87 Difference]: Start difference. First operand 322 states and 440 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 18:26:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:56,904 INFO L93 Difference]: Finished difference Result 598 states and 822 transitions. [2024-11-23 18:26:56,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:26:56,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 156 [2024-11-23 18:26:56,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:56,911 INFO L225 Difference]: With dead ends: 598 [2024-11-23 18:26:56,911 INFO L226 Difference]: Without dead ends: 324 [2024-11-23 18:26:56,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:26:56,914 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 441 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:26:56,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1540 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 18:26:56,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-23 18:26:56,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-11-23 18:26:56,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 195 states have (on average 1.2) internal successors, (234), 197 states have internal predecessors, (234), 104 states have call successors, (104), 23 states have call predecessors, (104), 24 states have return successors, (107), 103 states have call predecessors, (107), 103 states have call successors, (107) [2024-11-23 18:26:56,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 445 transitions. [2024-11-23 18:26:56,950 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 445 transitions. Word has length 156 [2024-11-23 18:26:56,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:56,951 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 445 transitions. [2024-11-23 18:26:56,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 18:26:56,951 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 445 transitions. [2024-11-23 18:26:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 18:26:56,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:56,954 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:56,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:26:57,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:57,155 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:26:57,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:57,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2055053537, now seen corresponding path program 1 times [2024-11-23 18:26:57,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:57,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316474376] [2024-11-23 18:26:57,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:57,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-23 18:27:04,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:04,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316474376] [2024-11-23 18:27:04,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316474376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:27:04,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141934318] [2024-11-23 18:27:04,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:04,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:04,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:04,718 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:27:04,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:27:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:10,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 4539 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 18:27:10,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:27:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-23 18:27:11,793 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:27:11,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141934318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:11,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:27:11,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-23 18:27:11,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784436343] [2024-11-23 18:27:11,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:11,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:27:11,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:11,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:27:11,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:27:11,797 INFO L87 Difference]: Start difference. First operand 324 states and 445 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-23 18:27:13,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:13,533 INFO L93 Difference]: Finished difference Result 621 states and 869 transitions. [2024-11-23 18:27:13,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:27:13,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 164 [2024-11-23 18:27:13,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:13,538 INFO L225 Difference]: With dead ends: 621 [2024-11-23 18:27:13,538 INFO L226 Difference]: Without dead ends: 345 [2024-11-23 18:27:13,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:27:13,541 INFO L435 NwaCegarLoop]: 409 mSDtfsCounter, 40 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:13,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2376 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:27:13,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-23 18:27:13,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2024-11-23 18:27:13,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 211 states have (on average 1.2132701421800949) internal successors, (256), 213 states have internal predecessors, (256), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2024-11-23 18:27:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 482 transitions. [2024-11-23 18:27:13,595 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 482 transitions. Word has length 164 [2024-11-23 18:27:13,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:13,597 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 482 transitions. [2024-11-23 18:27:13,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-23 18:27:13,598 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 482 transitions. [2024-11-23 18:27:13,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-23 18:27:13,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:13,601 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:13,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 18:27:13,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-23 18:27:13,802 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:13,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:13,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1756699009, now seen corresponding path program 1 times [2024-11-23 18:27:13,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:13,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233725967] [2024-11-23 18:27:13,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:13,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:20,759 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 18:27:20,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:20,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233725967] [2024-11-23 18:27:20,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233725967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:27:20,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325433702] [2024-11-23 18:27:20,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:20,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:20,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:20,763 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:27:20,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 18:27:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:28,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 4666 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 18:27:28,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:27:29,558 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-23 18:27:29,559 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:27:29,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325433702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:29,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:27:29,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-23 18:27:29,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029655059] [2024-11-23 18:27:29,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:29,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:27:29,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:29,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:27:29,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:27:29,566 INFO L87 Difference]: Start difference. First operand 343 states and 482 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-23 18:27:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:32,119 INFO L93 Difference]: Finished difference Result 644 states and 913 transitions. [2024-11-23 18:27:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:27:32,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 179 [2024-11-23 18:27:32,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:32,124 INFO L225 Difference]: With dead ends: 644 [2024-11-23 18:27:32,125 INFO L226 Difference]: Without dead ends: 349 [2024-11-23 18:27:32,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:27:32,128 INFO L435 NwaCegarLoop]: 386 mSDtfsCounter, 457 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:32,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1872 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 18:27:32,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-23 18:27:32,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 343. [2024-11-23 18:27:32,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 211 states have (on average 1.2132701421800949) internal successors, (256), 213 states have internal predecessors, (256), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2024-11-23 18:27:32,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 482 transitions. [2024-11-23 18:27:32,156 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 482 transitions. Word has length 179 [2024-11-23 18:27:32,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:32,156 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 482 transitions. [2024-11-23 18:27:32,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-23 18:27:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 482 transitions. [2024-11-23 18:27:32,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-23 18:27:32,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:32,160 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:32,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 18:27:32,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:32,361 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:32,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:32,362 INFO L85 PathProgramCache]: Analyzing trace with hash 550873262, now seen corresponding path program 1 times [2024-11-23 18:27:32,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:32,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950828386] [2024-11-23 18:27:32,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:32,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-23 18:27:39,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:39,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950828386] [2024-11-23 18:27:39,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950828386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:27:39,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432007860] [2024-11-23 18:27:39,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:39,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:39,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:39,536 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:27:39,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 18:27:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:46,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 4735 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 18:27:46,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:27:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-23 18:27:46,651 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:27:46,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432007860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:46,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:27:46,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-23 18:27:46,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186200099] [2024-11-23 18:27:46,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:46,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:27:46,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:46,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:27:46,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:27:46,655 INFO L87 Difference]: Start difference. First operand 343 states and 482 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-23 18:27:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:46,804 INFO L93 Difference]: Finished difference Result 644 states and 919 transitions. [2024-11-23 18:27:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:27:46,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 195 [2024-11-23 18:27:46,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:46,813 INFO L225 Difference]: With dead ends: 644 [2024-11-23 18:27:46,813 INFO L226 Difference]: Without dead ends: 349 [2024-11-23 18:27:46,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:27:46,817 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 1 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:46,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1303 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:27:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-23 18:27:46,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 347. [2024-11-23 18:27:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 215 states have (on average 1.2093023255813953) internal successors, (260), 217 states have internal predecessors, (260), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2024-11-23 18:27:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 486 transitions. [2024-11-23 18:27:46,861 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 486 transitions. Word has length 195 [2024-11-23 18:27:46,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:46,862 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 486 transitions. [2024-11-23 18:27:46,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-23 18:27:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 486 transitions. [2024-11-23 18:27:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-23 18:27:46,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:46,867 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:46,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 18:27:47,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:47,068 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:47,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:47,068 INFO L85 PathProgramCache]: Analyzing trace with hash 577938864, now seen corresponding path program 1 times [2024-11-23 18:27:47,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:47,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129844049] [2024-11-23 18:27:47,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:47,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-23 18:27:54,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:54,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129844049] [2024-11-23 18:27:54,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129844049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:27:54,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283633982] [2024-11-23 18:27:54,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:54,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:54,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:54,815 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:27:54,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 18:28:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:01,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 4730 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 18:28:02,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:28:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-11-23 18:28:03,648 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:28:03,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283633982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:03,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:28:03,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-23 18:28:03,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629356757] [2024-11-23 18:28:03,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:03,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 18:28:03,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:03,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 18:28:03,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:28:03,650 INFO L87 Difference]: Start difference. First operand 347 states and 486 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-23 18:28:06,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:28:06,430 INFO L93 Difference]: Finished difference Result 683 states and 964 transitions. [2024-11-23 18:28:06,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:28:06,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 195 [2024-11-23 18:28:06,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:28:06,435 INFO L225 Difference]: With dead ends: 683 [2024-11-23 18:28:06,435 INFO L226 Difference]: Without dead ends: 384 [2024-11-23 18:28:06,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:28:06,439 INFO L435 NwaCegarLoop]: 403 mSDtfsCounter, 62 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:28:06,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2720 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-23 18:28:06,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-23 18:28:06,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 347. [2024-11-23 18:28:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 215 states have (on average 1.2093023255813953) internal successors, (260), 217 states have internal predecessors, (260), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2024-11-23 18:28:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 486 transitions. [2024-11-23 18:28:06,484 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 486 transitions. Word has length 195 [2024-11-23 18:28:06,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:28:06,485 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 486 transitions. [2024-11-23 18:28:06,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-23 18:28:06,485 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 486 transitions. [2024-11-23 18:28:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 18:28:06,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:28:06,492 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:06,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 18:28:06,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:28:06,692 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:28:06,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:06,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1622292492, now seen corresponding path program 2 times [2024-11-23 18:28:06,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:06,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915008520] [2024-11-23 18:28:06,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 18:28:06,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:12,682 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 18:28:12,682 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 18:28:15,360 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-23 18:28:15,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:15,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915008520] [2024-11-23 18:28:15,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915008520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:28:15,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77318779] [2024-11-23 18:28:15,361 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 18:28:15,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:28:15,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:28:15,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:28:15,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f724015f-9b38-4890-80ee-4f1aba25566f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process