./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX --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 4526081b0c55ba26ca543a72264ba075e2706c93c97faea07fd81ad62d180974 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:59:53,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:59:53,466 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 16:59:53,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:59:53,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:59:53,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:59:53,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:59:53,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:59:53,512 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:59:53,513 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:59:53,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:59:53,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:59:53,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:59:53,516 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:59:53,516 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:59:53,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:59:53,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:59:53,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:59:53,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:59:53,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:59:53,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:59:53,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:59:53,523 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:59:53,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:59:53,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:59:53,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:59:53,524 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:59:53,524 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:59:53,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:59:53,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:59:53,525 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:59:53,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:59:53,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:59:53,526 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:59:53,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:59:53,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:59:53,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:59:53,530 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:59:53,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:59:53,531 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4526081b0c55ba26ca543a72264ba075e2706c93c97faea07fd81ad62d180974 [2024-11-08 16:59:53,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:59:53,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:59:53,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:59:53,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:59:53,810 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:59:53,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i Unable to find full path for "g++" [2024-11-08 16:59:56,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:59:56,861 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:59:56,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2024-11-08 16:59:56,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/data/99f22a32d/72b6c901e5384a358508007e8b8e87d6/FLAG344a223e6 [2024-11-08 16:59:56,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/data/99f22a32d/72b6c901e5384a358508007e8b8e87d6 [2024-11-08 16:59:56,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:59:56,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:59:56,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:59:56,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:59:56,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:59:56,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:59:56" (1/1) ... [2024-11-08 16:59:56,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a068a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:56, skipping insertion in model container [2024-11-08 16:59:56,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:59:56" (1/1) ... [2024-11-08 16:59:57,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:59:57,477 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2024-11-08 16:59:57,487 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2024-11-08 16:59:58,685 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,686 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,687 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,689 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,690 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,710 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,712 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,715 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,716 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,719 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,721 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,722 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:58,723 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,774 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[150688,150701] [2024-11-08 16:59:59,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:59:59,816 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:59:59,836 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2024-11-08 16:59:59,837 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2024-11-08 16:59:59,926 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,926 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,927 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,928 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,929 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,943 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,944 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,946 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,947 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,948 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,950 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,951 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:59:59,951 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:00:00,148 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[150688,150701] [2024-11-08 17:00:00,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:00:00,446 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:00:00,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00 WrapperNode [2024-11-08 17:00:00,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:00:00,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:00:00,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:00:00,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:00:00,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,630 INFO L138 Inliner]: procedures = 668, calls = 1046, calls flagged for inlining = 53, calls inlined = 6, statements flattened = 149 [2024-11-08 17:00:00,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:00:00,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:00:00,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:00:00,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:00:00,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,701 INFO L175 MemorySlicer]: Split 35 memory accesses to 3 slices as follows [2, 5, 28]. 80 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 10 writes are split as follows [0, 0, 10]. [2024-11-08 17:00:00,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:00:00,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:00:00,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:00:00,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:00:00,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:00:00,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:00,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:00:00,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:00:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:00:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 17:00:00,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 17:00:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-08 17:00:00,846 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-08 17:00:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:00:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-08 17:00:00,846 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-08 17:00:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:00:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:00:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 17:00:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 17:00:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2024-11-08 17:00:00,848 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2024-11-08 17:00:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:00:00,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:00:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 17:00:00,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 17:00:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:00:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:00:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 17:00:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 17:00:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 17:00:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 17:00:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 17:00:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-08 17:00:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-08 17:00:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-08 17:00:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-08 17:00:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:00:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:00:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:00:01,269 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:00:01,272 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:00:01,826 INFO L? ?]: Removed 71 outVars from TransFormulas that were not future-live. [2024-11-08 17:00:01,826 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:00:01,861 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:00:01,861 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:00:01,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:00:01 BoogieIcfgContainer [2024-11-08 17:00:01,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:00:01,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:00:01,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:00:01,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:00:01,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:59:56" (1/3) ... [2024-11-08 17:00:01,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff18c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:00:01, skipping insertion in model container [2024-11-08 17:00:01,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (2/3) ... [2024-11-08 17:00:01,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff18c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:00:01, skipping insertion in model container [2024-11-08 17:00:01,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:00:01" (3/3) ... [2024-11-08 17:00:01,878 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_back_harness.i [2024-11-08 17:00:01,903 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:00:01,904 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:00:02,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:00:02,039 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;@689d491f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:00:02,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:00:02,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 67 states have internal predecessors, (85), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 17:00:02,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 17:00:02,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:02,064 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:02,065 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:02,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:02,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2102279396, now seen corresponding path program 1 times [2024-11-08 17:00:02,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:02,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363188442] [2024-11-08 17:00:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:02,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:00:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 17:00:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 17:00:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:00:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:00:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 17:00:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:00:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-08 17:00:02,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:02,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363188442] [2024-11-08 17:00:02,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363188442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:02,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:02,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:00:02,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880659647] [2024-11-08 17:00:02,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:02,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:00:02,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:02,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:00:02,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:00:02,987 INFO L87 Difference]: Start difference. First operand has 103 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 67 states have internal predecessors, (85), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 17:00:03,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:03,026 INFO L93 Difference]: Finished difference Result 198 states and 290 transitions. [2024-11-08 17:00:03,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:00:03,031 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-11-08 17:00:03,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:03,040 INFO L225 Difference]: With dead ends: 198 [2024-11-08 17:00:03,040 INFO L226 Difference]: Without dead ends: 98 [2024-11-08 17:00:03,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:00:03,049 INFO L432 NwaCegarLoop]: 139 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, 139 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 [2024-11-08 17:00:03,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:00:03,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-08 17:00:03,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-08 17:00:03,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 63 states have internal predecessors, (79), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-08 17:00:03,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 134 transitions. [2024-11-08 17:00:03,106 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 134 transitions. Word has length 73 [2024-11-08 17:00:03,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:03,106 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 134 transitions. [2024-11-08 17:00:03,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 17:00:03,107 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 134 transitions. [2024-11-08 17:00:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 17:00:03,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:03,115 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:03,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:00:03,116 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:03,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:03,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1098219610, now seen corresponding path program 1 times [2024-11-08 17:00:03,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:03,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189337035] [2024-11-08 17:00:03,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:03,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:00:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 17:00:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 17:00:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:00:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:00:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 17:00:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:00:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-08 17:00:04,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:04,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189337035] [2024-11-08 17:00:04,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189337035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:04,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667828690] [2024-11-08 17:00:04,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:04,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:04,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:04,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:04,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:00:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-08 17:00:04,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:05,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-08 17:00:05,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-08 17:00:05,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:05,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:05,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:05,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 25 [2024-11-08 17:00:05,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:05,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:05,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 13 [2024-11-08 17:00:06,387 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:00:06,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:00:06,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667828690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:06,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:00:06,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2024-11-08 17:00:06,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134151169] [2024-11-08 17:00:06,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:06,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:00:06,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:06,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:00:06,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:00:06,398 INFO L87 Difference]: Start difference. First operand 98 states and 134 transitions. Second operand has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:07,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:07,474 INFO L93 Difference]: Finished difference Result 239 states and 328 transitions. [2024-11-08 17:00:07,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:00:07,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2024-11-08 17:00:07,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:07,482 INFO L225 Difference]: With dead ends: 239 [2024-11-08 17:00:07,485 INFO L226 Difference]: Without dead ends: 153 [2024-11-08 17:00:07,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:00:07,489 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 75 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:07,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 524 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:00:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-08 17:00:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2024-11-08 17:00:07,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.3235294117647058) internal successors, (135), 104 states have internal predecessors, (135), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-08 17:00:07,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 206 transitions. [2024-11-08 17:00:07,543 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 206 transitions. Word has length 73 [2024-11-08 17:00:07,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:07,545 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 206 transitions. [2024-11-08 17:00:07,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 206 transitions. [2024-11-08 17:00:07,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 17:00:07,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:07,551 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:07,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:00:07,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:07,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:07,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:07,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1082700892, now seen corresponding path program 1 times [2024-11-08 17:00:07,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:07,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996123826] [2024-11-08 17:00:07,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:07,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:00:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 17:00:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 17:00:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:00:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:00:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 17:00:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:00:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,492 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-08 17:00:08,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:08,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996123826] [2024-11-08 17:00:08,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996123826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:08,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294207119] [2024-11-08 17:00:08,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:08,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:08,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:08,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:08,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:00:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:08,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-08 17:00:08,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:08,981 INFO L349 Elim1Store]: treesize reduction 42, result has 31.1 percent of original size [2024-11-08 17:00:08,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 80 [2024-11-08 17:00:08,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-11-08 17:00:09,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:09,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 20 [2024-11-08 17:00:09,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 17:00:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:00:09,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:00:09,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294207119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:09,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:00:09,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2024-11-08 17:00:09,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424288459] [2024-11-08 17:00:09,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:09,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:00:09,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:09,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:00:09,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:00:09,701 INFO L87 Difference]: Start difference. First operand 150 states and 206 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:13,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:00:17,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:00:21,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:00:26,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:00:30,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:00:35,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:00:39,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:00:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:39,186 INFO L93 Difference]: Finished difference Result 259 states and 356 transitions. [2024-11-08 17:00:39,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:00:39,187 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2024-11-08 17:00:39,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:39,189 INFO L225 Difference]: With dead ends: 259 [2024-11-08 17:00:39,190 INFO L226 Difference]: Without dead ends: 155 [2024-11-08 17:00:39,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2024-11-08 17:00:39,192 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 277 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 41 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:39,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 878 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 29.0s Time] [2024-11-08 17:00:39,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-08 17:00:39,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 152. [2024-11-08 17:00:39,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 106 states have internal predecessors, (137), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-08 17:00:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 208 transitions. [2024-11-08 17:00:39,215 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 208 transitions. Word has length 73 [2024-11-08 17:00:39,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:39,215 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 208 transitions. [2024-11-08 17:00:39,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:39,216 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 208 transitions. [2024-11-08 17:00:39,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 17:00:39,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:39,218 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:39,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:00:39,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:39,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:39,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:39,423 INFO L85 PathProgramCache]: Analyzing trace with hash -945885218, now seen corresponding path program 1 times [2024-11-08 17:00:39,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:39,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087983719] [2024-11-08 17:00:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:39,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:39,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:39,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:39,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:00:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:39,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 17:00:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 17:00:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:00:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:00:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 17:00:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:00:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,105 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-08 17:00:40,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:40,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087983719] [2024-11-08 17:00:40,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087983719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:40,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422824336] [2024-11-08 17:00:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:40,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:40,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:40,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:40,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:00:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-08 17:00:40,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:40,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-08 17:00:40,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-08 17:00:40,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:40,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:40,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 13 [2024-11-08 17:00:40,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:40,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:40,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 13 [2024-11-08 17:00:41,336 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:00:41,336 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:00:41,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422824336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:41,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:00:41,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2024-11-08 17:00:41,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525517342] [2024-11-08 17:00:41,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:41,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:00:41,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:41,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:00:41,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:00:41,339 INFO L87 Difference]: Start difference. First operand 152 states and 208 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:42,531 INFO L93 Difference]: Finished difference Result 264 states and 362 transitions. [2024-11-08 17:00:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:00:42,532 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2024-11-08 17:00:42,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:42,535 INFO L225 Difference]: With dead ends: 264 [2024-11-08 17:00:42,535 INFO L226 Difference]: Without dead ends: 157 [2024-11-08 17:00:42,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-08 17:00:42,537 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 99 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:42,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 791 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:00:42,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-08 17:00:42,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2024-11-08 17:00:42,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 106 states have (on average 1.3113207547169812) internal successors, (139), 108 states have internal predecessors, (139), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-08 17:00:42,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 210 transitions. [2024-11-08 17:00:42,573 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 210 transitions. Word has length 73 [2024-11-08 17:00:42,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:42,577 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 210 transitions. [2024-11-08 17:00:42,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 210 transitions. [2024-11-08 17:00:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 17:00:42,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:42,579 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:42,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:00:42,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:42,781 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:42,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:42,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1653007457, now seen corresponding path program 1 times [2024-11-08 17:00:42,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:42,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558227923] [2024-11-08 17:00:42,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:42,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 17:00:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 17:00:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 17:00:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 17:00:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 17:00:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 17:00:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 17:00:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,626 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 17:00:43,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:43,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558227923] [2024-11-08 17:00:43,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558227923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:43,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126833177] [2024-11-08 17:00:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:43,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:43,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:43,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:43,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:00:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:43,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-08 17:00:43,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:44,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-08 17:00:44,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-08 17:00:44,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-08 17:00:44,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2024-11-08 17:00:44,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-08 17:00:44,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-08 17:00:44,389 INFO L349 Elim1Store]: treesize reduction 50, result has 18.0 percent of original size [2024-11-08 17:00:44,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 187 treesize of output 185 [2024-11-08 17:00:44,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 142 [2024-11-08 17:00:44,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 13 [2024-11-08 17:00:44,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:00:44,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 30 [2024-11-08 17:00:45,252 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:00:45,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:00:45,762 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ 16 |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|))) (and (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_668 Int)) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_668)))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset|))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_673 Int) (v_ArrVal_671 (Array Int Int))) (= (select (select (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_671))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_673))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse2) 0)))) is different from false [2024-11-08 17:00:45,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:00:45,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 90 [2024-11-08 17:00:45,854 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ 16 |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_13| Int)) (or (forall ((v_ArrVal_664 Int) (v_arrayElimArr_7 (Array Int Int)) (v_subst_1 Int)) (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_664)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_13| v_arrayElimArr_7))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_subst_1))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse2) 0)) (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_13| 1)))) (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_13| Int)) (or (forall ((v_ArrVal_673 Int) (v_ArrVal_671 (Array Int Int))) (= 0 (select (select (let ((.cse3 (store (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_13|)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_13| v_ArrVal_671))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_673))) |c_ULTIMATE.start_aws_linked_list_push_back_harness_~#list~0#1.base|) .cse2))) (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_13| 1)))))) is different from false [2024-11-08 17:00:45,915 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:00:45,916 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:00:46,056 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2024-11-08 17:00:46,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 171 treesize of output 200 [2024-11-08 17:00:46,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:00:46,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 220 treesize of output 220 [2024-11-08 17:00:46,099 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:00:46,100 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:00:46,208 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2024-11-08 17:00:46,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 361 treesize of output 348 [2024-11-08 17:00:46,254 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:00:46,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 330 treesize of output 310 [2024-11-08 17:00:46,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 257 [2024-11-08 17:00:46,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 269 [2024-11-08 17:00:46,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2024-11-08 17:00:46,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2024-11-08 17:00:48,236 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:00:48,237 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:00:48,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:00:48,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 129 [2024-11-08 17:00:48,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:00:48,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2024-11-08 17:00:48,592 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 1 not checked. [2024-11-08 17:00:48,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126833177] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:00:48,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:00:48,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 10] total 23 [2024-11-08 17:00:48,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133727135] [2024-11-08 17:00:48,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:00:48,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:00:48,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:48,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:00:48,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=362, Unknown=2, NotChecked=78, Total=506 [2024-11-08 17:00:48,595 INFO L87 Difference]: Start difference. First operand 154 states and 210 transitions. Second operand has 23 states, 20 states have (on average 4.25) internal successors, (85), 21 states have internal predecessors, (85), 7 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-08 17:00:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:51,596 INFO L93 Difference]: Finished difference Result 327 states and 451 transitions. [2024-11-08 17:00:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 17:00:51,596 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 4.25) internal successors, (85), 21 states have internal predecessors, (85), 7 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) Word has length 75 [2024-11-08 17:00:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:51,599 INFO L225 Difference]: With dead ends: 327 [2024-11-08 17:00:51,599 INFO L226 Difference]: Without dead ends: 215 [2024-11-08 17:00:51,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=163, Invalid=1033, Unknown=2, NotChecked=134, Total=1332 [2024-11-08 17:00:51,602 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 90 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 299 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:51,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 2216 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 734 Invalid, 0 Unknown, 299 Unchecked, 2.0s Time] [2024-11-08 17:00:51,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-08 17:00:51,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 186. [2024-11-08 17:00:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 133 states have (on average 1.3383458646616542) internal successors, (178), 137 states have internal predecessors, (178), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2024-11-08 17:00:51,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2024-11-08 17:00:51,665 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 75 [2024-11-08 17:00:51,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:51,666 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2024-11-08 17:00:51,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 4.25) internal successors, (85), 21 states have internal predecessors, (85), 7 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-08 17:00:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2024-11-08 17:00:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 17:00:51,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:51,671 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:51,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:00:51,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:51,872 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:51,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash 31733384, now seen corresponding path program 1 times [2024-11-08 17:00:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:51,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156514177] [2024-11-08 17:00:51,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:51,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 17:00:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 17:00:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 17:00:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:00:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 17:00:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:00:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:00:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-08 17:00:52,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:52,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156514177] [2024-11-08 17:00:52,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156514177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:52,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:52,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:00:52,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965392290] [2024-11-08 17:00:52,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:52,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:00:52,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:52,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:00:52,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:00:52,382 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:52,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:52,557 INFO L93 Difference]: Finished difference Result 307 states and 417 transitions. [2024-11-08 17:00:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:00:52,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 79 [2024-11-08 17:00:52,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:52,560 INFO L225 Difference]: With dead ends: 307 [2024-11-08 17:00:52,560 INFO L226 Difference]: Without dead ends: 192 [2024-11-08 17:00:52,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:00:52,562 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 26 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:52,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 663 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:00:52,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-08 17:00:52,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 186. [2024-11-08 17:00:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 133 states have (on average 1.3157894736842106) internal successors, (175), 137 states have internal predecessors, (175), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2024-11-08 17:00:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 252 transitions. [2024-11-08 17:00:52,591 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 252 transitions. Word has length 79 [2024-11-08 17:00:52,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:52,591 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 252 transitions. [2024-11-08 17:00:52,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 252 transitions. [2024-11-08 17:00:52,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:00:52,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:52,593 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:52,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:00:52,594 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:52,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:52,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1291332244, now seen corresponding path program 1 times [2024-11-08 17:00:52,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:52,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684608266] [2024-11-08 17:00:52,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:52,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 17:00:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 17:00:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 17:00:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 17:00:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 17:00:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 17:00:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 17:00:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,020 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-08 17:00:53,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:53,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684608266] [2024-11-08 17:00:53,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684608266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:53,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:53,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:00:53,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050594241] [2024-11-08 17:00:53,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:53,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:00:53,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:53,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:00:53,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:00:53,023 INFO L87 Difference]: Start difference. First operand 186 states and 252 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:53,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:53,216 INFO L93 Difference]: Finished difference Result 328 states and 449 transitions. [2024-11-08 17:00:53,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:00:53,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2024-11-08 17:00:53,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:53,220 INFO L225 Difference]: With dead ends: 328 [2024-11-08 17:00:53,220 INFO L226 Difference]: Without dead ends: 210 [2024-11-08 17:00:53,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:00:53,222 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 38 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:53,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 752 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:00:53,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-08 17:00:53,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 192. [2024-11-08 17:00:53,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 139 states have (on average 1.3021582733812949) internal successors, (181), 143 states have internal predecessors, (181), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2024-11-08 17:00:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 258 transitions. [2024-11-08 17:00:53,255 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 258 transitions. Word has length 81 [2024-11-08 17:00:53,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:53,255 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 258 transitions. [2024-11-08 17:00:53,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:53,256 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 258 transitions. [2024-11-08 17:00:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 17:00:53,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:53,257 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:53,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:00:53,258 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:53,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:53,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2086209125, now seen corresponding path program 1 times [2024-11-08 17:00:53,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:53,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472436575] [2024-11-08 17:00:53,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:53,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 17:00:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 17:00:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 17:00:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 17:00:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:00:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:00:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:00:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-08 17:00:53,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:53,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472436575] [2024-11-08 17:00:53,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472436575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:53,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:53,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:00:53,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233177822] [2024-11-08 17:00:53,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:53,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:00:53,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:53,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:00:53,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:00:53,673 INFO L87 Difference]: Start difference. First operand 192 states and 258 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:53,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:53,762 INFO L93 Difference]: Finished difference Result 320 states and 436 transitions. [2024-11-08 17:00:53,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:00:53,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2024-11-08 17:00:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:53,765 INFO L225 Difference]: With dead ends: 320 [2024-11-08 17:00:53,765 INFO L226 Difference]: Without dead ends: 204 [2024-11-08 17:00:53,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:00:53,767 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 11 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:53,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 462 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:00:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-08 17:00:53,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 195. [2024-11-08 17:00:53,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 142 states have (on average 1.295774647887324) internal successors, (184), 146 states have internal predecessors, (184), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2024-11-08 17:00:53,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 261 transitions. [2024-11-08 17:00:53,804 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 261 transitions. Word has length 83 [2024-11-08 17:00:53,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:53,805 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 261 transitions. [2024-11-08 17:00:53,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:00:53,805 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 261 transitions. [2024-11-08 17:00:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 17:00:53,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:53,807 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:53,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:00:53,809 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:53,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash 280074905, now seen corresponding path program 1 times [2024-11-08 17:00:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:53,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720101888] [2024-11-08 17:00:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:53,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 17:00:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:00:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:00:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:00:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:00:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:00:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:00:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:00:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:54,814 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-08 17:00:54,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:54,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720101888] [2024-11-08 17:00:54,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720101888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:54,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365491791] [2024-11-08 17:00:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:54,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:54,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:54,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:54,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:00:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:55,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 17:00:55,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 17:00:55,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:00:55,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365491791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:55,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:00:55,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 12 [2024-11-08 17:00:55,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716629794] [2024-11-08 17:00:55,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:55,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:00:55,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:55,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:00:55,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:00:55,359 INFO L87 Difference]: Start difference. First operand 195 states and 261 transitions. Second operand has 10 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:00:55,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:55,835 INFO L93 Difference]: Finished difference Result 317 states and 423 transitions. [2024-11-08 17:00:55,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:00:55,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2024-11-08 17:00:55,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:55,838 INFO L225 Difference]: With dead ends: 317 [2024-11-08 17:00:55,839 INFO L226 Difference]: Without dead ends: 202 [2024-11-08 17:00:55,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-11-08 17:00:55,842 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 126 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:55,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 731 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:00:55,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-08 17:00:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 196. [2024-11-08 17:00:55,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 143 states have (on average 1.2797202797202798) internal successors, (183), 147 states have internal predecessors, (183), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2024-11-08 17:00:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 260 transitions. [2024-11-08 17:00:55,877 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 260 transitions. Word has length 91 [2024-11-08 17:00:55,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:55,878 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 260 transitions. [2024-11-08 17:00:55,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:00:55,878 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 260 transitions. [2024-11-08 17:00:55,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:00:55,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:55,880 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:55,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:00:56,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:56,085 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:56,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:56,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1141668157, now seen corresponding path program 1 times [2024-11-08 17:00:56,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:56,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529426105] [2024-11-08 17:00:56,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:56,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:56,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:00:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:56,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:00:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:56,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 17:00:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:56,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:00:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:56,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 17:00:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:56,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:00:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:57,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:00:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:57,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 17:00:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:57,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 17:00:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:57,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 17:00:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-08 17:00:57,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:57,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529426105] [2024-11-08 17:00:57,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529426105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:57,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333025352] [2024-11-08 17:00:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:57,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:57,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:57,057 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:57,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:00:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:57,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 17:00:57,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 17:00:57,723 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:00:57,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333025352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:57,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:00:57,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2024-11-08 17:00:57,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339459336] [2024-11-08 17:00:57,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:57,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:00:57,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:57,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:00:57,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:00:57,729 INFO L87 Difference]: Start difference. First operand 196 states and 260 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:00:58,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:58,373 INFO L93 Difference]: Finished difference Result 322 states and 426 transitions. [2024-11-08 17:00:58,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:00:58,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 93 [2024-11-08 17:00:58,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:58,377 INFO L225 Difference]: With dead ends: 322 [2024-11-08 17:00:58,378 INFO L226 Difference]: Without dead ends: 204 [2024-11-08 17:00:58,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=616, Unknown=0, NotChecked=0, Total=702 [2024-11-08 17:00:58,380 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 128 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:58,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 918 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:00:58,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-08 17:00:58,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 197. [2024-11-08 17:00:58,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 144 states have (on average 1.25) internal successors, (180), 148 states have internal predecessors, (180), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (39), 34 states have call predecessors, (39), 37 states have call successors, (39) [2024-11-08 17:00:58,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 257 transitions. [2024-11-08 17:00:58,416 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 257 transitions. Word has length 93 [2024-11-08 17:00:58,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:58,417 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 257 transitions. [2024-11-08 17:00:58,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:00:58,417 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 257 transitions. [2024-11-08 17:00:58,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 17:00:58,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:58,421 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:00:58,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 17:00:58,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:58,626 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:58,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:58,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1907330462, now seen corresponding path program 1 times [2024-11-08 17:00:58,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:58,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345613491] [2024-11-08 17:00:58,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:58,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:01:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:01:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:01:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:01:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:01:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:01:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:01:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:01:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:01:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:01,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:01:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:02,308 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 17:01:02,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:02,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345613491] [2024-11-08 17:01:02,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345613491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:02,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:02,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 17:01:02,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66860074] [2024-11-08 17:01:02,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:02,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:01:02,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:02,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:01:02,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:01:02,312 INFO L87 Difference]: Start difference. First operand 197 states and 257 transitions. Second operand has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:01:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:03,477 INFO L93 Difference]: Finished difference Result 230 states and 308 transitions. [2024-11-08 17:01:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:01:03,478 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2024-11-08 17:01:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:03,481 INFO L225 Difference]: With dead ends: 230 [2024-11-08 17:01:03,481 INFO L226 Difference]: Without dead ends: 228 [2024-11-08 17:01:03,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:01:03,482 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 23 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:03,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1286 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:01:03,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-08 17:01:03,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 216. [2024-11-08 17:01:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 153 states have (on average 1.2352941176470589) internal successors, (189), 158 states have internal predecessors, (189), 46 states have call successors, (46), 16 states have call predecessors, (46), 16 states have return successors, (52), 41 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-08 17:01:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 287 transitions. [2024-11-08 17:01:03,528 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 287 transitions. Word has length 91 [2024-11-08 17:01:03,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:03,530 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 287 transitions. [2024-11-08 17:01:03,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:01:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 287 transitions. [2024-11-08 17:01:03,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 17:01:03,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:03,534 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:01:03,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:01:03,535 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:03,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:03,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1578290208, now seen corresponding path program 1 times [2024-11-08 17:01:03,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:03,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097537766] [2024-11-08 17:01:03,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:03,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:01:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:01:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:01:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:01:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:01:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:01:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:01:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:01:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:01:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:01:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,934 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 17:01:04,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:04,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097537766] [2024-11-08 17:01:04,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097537766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:04,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:04,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 17:01:04,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540199773] [2024-11-08 17:01:04,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:04,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:01:04,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:04,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:01:04,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:01:04,938 INFO L87 Difference]: Start difference. First operand 216 states and 287 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:01:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:05,472 INFO L93 Difference]: Finished difference Result 308 states and 417 transitions. [2024-11-08 17:01:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:01:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2024-11-08 17:01:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:05,475 INFO L225 Difference]: With dead ends: 308 [2024-11-08 17:01:05,475 INFO L226 Difference]: Without dead ends: 229 [2024-11-08 17:01:05,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:01:05,477 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 36 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:05,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 961 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:01:05,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-08 17:01:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 221. [2024-11-08 17:01:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 157 states have (on average 1.2356687898089171) internal successors, (194), 163 states have internal predecessors, (194), 46 states have call successors, (46), 16 states have call predecessors, (46), 17 states have return successors, (55), 41 states have call predecessors, (55), 45 states have call successors, (55) [2024-11-08 17:01:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 295 transitions. [2024-11-08 17:01:05,520 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 295 transitions. Word has length 91 [2024-11-08 17:01:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:05,520 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 295 transitions. [2024-11-08 17:01:05,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:01:05,521 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 295 transitions. [2024-11-08 17:01:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 17:01:05,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:05,524 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:01:05,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:01:05,525 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:05,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:05,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1185263198, now seen corresponding path program 1 times [2024-11-08 17:01:05,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:05,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293303475] [2024-11-08 17:01:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:05,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:01:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:01:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:01:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:01:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:01:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:01:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:01:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:01:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:01:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:05,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:01:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:06,089 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 17:01:06,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:06,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293303475] [2024-11-08 17:01:06,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293303475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:06,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:06,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:01:06,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297531781] [2024-11-08 17:01:06,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:06,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:01:06,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:06,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:01:06,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:01:06,094 INFO L87 Difference]: Start difference. First operand 221 states and 295 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 17:01:06,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:06,368 INFO L93 Difference]: Finished difference Result 339 states and 459 transitions. [2024-11-08 17:01:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:01:06,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 91 [2024-11-08 17:01:06,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:06,371 INFO L225 Difference]: With dead ends: 339 [2024-11-08 17:01:06,372 INFO L226 Difference]: Without dead ends: 224 [2024-11-08 17:01:06,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:01:06,373 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 23 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:06,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 817 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:01:06,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-08 17:01:06,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 221. [2024-11-08 17:01:06,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 157 states have (on average 1.2292993630573248) internal successors, (193), 163 states have internal predecessors, (193), 46 states have call successors, (46), 16 states have call predecessors, (46), 17 states have return successors, (52), 41 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-08 17:01:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 291 transitions. [2024-11-08 17:01:06,418 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 291 transitions. Word has length 91 [2024-11-08 17:01:06,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:06,419 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 291 transitions. [2024-11-08 17:01:06,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 17:01:06,419 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 291 transitions. [2024-11-08 17:01:06,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:01:06,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:06,421 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:01:06,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:01:06,422 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:06,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:06,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1481660825, now seen corresponding path program 1 times [2024-11-08 17:01:06,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:06,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362765257] [2024-11-08 17:01:06,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:06,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:07,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:01:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:07,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:01:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:07,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 17:01:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:08,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:01:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:08,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 17:01:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:08,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 17:01:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:08,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:01:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:08,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 17:01:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:08,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 17:01:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:08,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 17:01:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-08 17:01:08,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:08,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362765257] [2024-11-08 17:01:08,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362765257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:01:08,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782273201] [2024-11-08 17:01:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:08,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:01:08,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:01:08,192 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:01:08,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 17:01:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:08,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-11-08 17:01:08,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:01:08,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-08 17:01:09,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:01:09,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 17:01:09,184 INFO L349 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size [2024-11-08 17:01:09,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 123 [2024-11-08 17:01:09,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:01:09,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2024-11-08 17:01:09,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 85 [2024-11-08 17:01:09,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:01:09,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 17 [2024-11-08 17:01:09,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-08 17:01:11,252 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:01:11,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:01:13,000 INFO L349 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2024-11-08 17:01:13,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 185 [2024-11-08 17:01:13,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:01:13,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 95 [2024-11-08 17:01:13,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 68 [2024-11-08 17:01:13,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2024-11-08 17:01:13,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2024-11-08 17:01:13,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:01:13,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 33 [2024-11-08 17:01:13,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:01:13,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 384 treesize of output 354 [2024-11-08 17:01:13,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 176 [2024-11-08 17:01:13,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-08 17:01:13,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 17:01:13,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:01:13,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 75 [2024-11-08 17:01:14,080 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-08 17:01:14,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782273201] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:01:14,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:01:14,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 15] total 40 [2024-11-08 17:01:14,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050886830] [2024-11-08 17:01:14,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:01:14,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-08 17:01:14,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:14,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-08 17:01:14,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1417, Unknown=2, NotChecked=0, Total=1560 [2024-11-08 17:01:14,084 INFO L87 Difference]: Start difference. First operand 221 states and 291 transitions. Second operand has 40 states, 37 states have (on average 3.5675675675675675) internal successors, (132), 37 states have internal predecessors, (132), 10 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (24), 7 states have call predecessors, (24), 10 states have call successors, (24) [2024-11-08 17:01:21,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:01:25,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:01:30,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:01:31,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:31,908 INFO L93 Difference]: Finished difference Result 388 states and 516 transitions. [2024-11-08 17:01:31,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 17:01:31,909 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 37 states have (on average 3.5675675675675675) internal successors, (132), 37 states have internal predecessors, (132), 10 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (24), 7 states have call predecessors, (24), 10 states have call successors, (24) Word has length 93 [2024-11-08 17:01:31,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:31,915 INFO L225 Difference]: With dead ends: 388 [2024-11-08 17:01:31,915 INFO L226 Difference]: Without dead ends: 265 [2024-11-08 17:01:31,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=369, Invalid=3657, Unknown=6, NotChecked=0, Total=4032 [2024-11-08 17:01:31,919 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 264 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 40 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:31,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 3111 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1862 Invalid, 11 Unknown, 0 Unchecked, 16.0s Time] [2024-11-08 17:01:31,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-08 17:01:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 238. [2024-11-08 17:01:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 171 states have (on average 1.2456140350877194) internal successors, (213), 177 states have internal predecessors, (213), 48 states have call successors, (48), 17 states have call predecessors, (48), 18 states have return successors, (54), 43 states have call predecessors, (54), 47 states have call successors, (54) [2024-11-08 17:01:31,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2024-11-08 17:01:31,987 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 93 [2024-11-08 17:01:31,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:31,988 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2024-11-08 17:01:31,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 37 states have (on average 3.5675675675675675) internal successors, (132), 37 states have internal predecessors, (132), 10 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (24), 7 states have call predecessors, (24), 10 states have call successors, (24) [2024-11-08 17:01:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2024-11-08 17:01:31,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:01:31,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:31,991 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:32,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 17:01:32,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 17:01:32,196 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:32,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:32,196 INFO L85 PathProgramCache]: Analyzing trace with hash -325930953, now seen corresponding path program 1 times [2024-11-08 17:01:32,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:32,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86094487] [2024-11-08 17:01:32,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:32,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:01:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:01:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:01:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:01:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:01:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:01:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:01:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:01:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:01:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:01:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:01:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:01:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 17:01:37,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:37,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86094487] [2024-11-08 17:01:37,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86094487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:37,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:37,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 17:01:37,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127358331] [2024-11-08 17:01:37,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:37,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 17:01:37,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:37,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 17:01:37,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:01:37,298 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand has 17 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 8 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-08 17:01:38,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:38,431 INFO L93 Difference]: Finished difference Result 263 states and 349 transitions. [2024-11-08 17:01:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 17:01:38,432 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 8 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 7 states have call successors, (12) Word has length 105 [2024-11-08 17:01:38,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:38,433 INFO L225 Difference]: With dead ends: 263 [2024-11-08 17:01:38,433 INFO L226 Difference]: Without dead ends: 261 [2024-11-08 17:01:38,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-08 17:01:38,435 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 29 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:38,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1393 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:01:38,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-08 17:01:38,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 257. [2024-11-08 17:01:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 181 states have (on average 1.2320441988950277) internal successors, (223), 188 states have internal predecessors, (223), 54 states have call successors, (54), 18 states have call predecessors, (54), 21 states have return successors, (65), 50 states have call predecessors, (65), 53 states have call successors, (65) [2024-11-08 17:01:38,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 342 transitions. [2024-11-08 17:01:38,487 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 342 transitions. Word has length 105 [2024-11-08 17:01:38,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:38,488 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 342 transitions. [2024-11-08 17:01:38,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 8 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-08 17:01:38,488 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 342 transitions. [2024-11-08 17:01:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:01:38,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:38,491 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:38,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:01:38,492 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:38,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:38,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1135277579, now seen corresponding path program 1 times [2024-11-08 17:01:38,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:38,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110320418] [2024-11-08 17:01:38,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:38,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:01:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:01:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:01:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:01:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:01:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:01:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:01:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:01:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:01:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:01:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:01:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:01:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:41,654 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 17:01:41,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:41,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110320418] [2024-11-08 17:01:41,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110320418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:41,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:41,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 17:01:41,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309154921] [2024-11-08 17:01:41,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:41,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 17:01:41,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:41,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 17:01:41,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:01:41,657 INFO L87 Difference]: Start difference. First operand 257 states and 342 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 7 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-08 17:01:42,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:42,954 INFO L93 Difference]: Finished difference Result 394 states and 531 transitions. [2024-11-08 17:01:42,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:01:42,955 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 7 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 105 [2024-11-08 17:01:42,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:42,957 INFO L225 Difference]: With dead ends: 394 [2024-11-08 17:01:42,957 INFO L226 Difference]: Without dead ends: 257 [2024-11-08 17:01:42,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-08 17:01:42,964 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 21 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:42,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1118 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:01:42,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-08 17:01:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2024-11-08 17:01:43,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 181 states have (on average 1.2265193370165746) internal successors, (222), 188 states have internal predecessors, (222), 54 states have call successors, (54), 18 states have call predecessors, (54), 21 states have return successors, (62), 50 states have call predecessors, (62), 53 states have call successors, (62) [2024-11-08 17:01:43,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 338 transitions. [2024-11-08 17:01:43,067 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 338 transitions. Word has length 105 [2024-11-08 17:01:43,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:43,068 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 338 transitions. [2024-11-08 17:01:43,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 7 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-08 17:01:43,069 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 338 transitions. [2024-11-08 17:01:43,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:01:43,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:43,071 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:43,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:01:43,071 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:43,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:43,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1528304589, now seen corresponding path program 1 times [2024-11-08 17:01:43,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:43,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354758434] [2024-11-08 17:01:43,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:43,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:01:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:01:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:01:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:01:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:01:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:01:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:01:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:01:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:01:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:01:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:01:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:01:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 17:01:43,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:43,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354758434] [2024-11-08 17:01:43,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354758434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:43,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:43,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:01:43,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966701235] [2024-11-08 17:01:43,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:43,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:01:43,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:43,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:01:43,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:01:43,578 INFO L87 Difference]: Start difference. First operand 257 states and 338 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 17:01:43,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:43,815 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2024-11-08 17:01:43,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:01:43,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 105 [2024-11-08 17:01:43,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:43,819 INFO L225 Difference]: With dead ends: 359 [2024-11-08 17:01:43,819 INFO L226 Difference]: Without dead ends: 248 [2024-11-08 17:01:43,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:01:43,822 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 28 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:43,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 701 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:01:43,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-08 17:01:43,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2024-11-08 17:01:43,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 175 states have (on average 1.2228571428571429) internal successors, (214), 180 states have internal predecessors, (214), 53 states have call successors, (53), 18 states have call predecessors, (53), 19 states have return successors, (55), 49 states have call predecessors, (55), 52 states have call successors, (55) [2024-11-08 17:01:43,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 322 transitions. [2024-11-08 17:01:43,875 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 322 transitions. Word has length 105 [2024-11-08 17:01:43,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:43,876 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 322 transitions. [2024-11-08 17:01:43,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 17:01:43,876 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 322 transitions. [2024-11-08 17:01:43,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:01:43,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:43,879 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:01:43,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:01:43,879 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:43,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:43,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1457637368, now seen corresponding path program 2 times [2024-11-08 17:01:43,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:43,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186843056] [2024-11-08 17:01:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:43,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:01:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:01:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 17:01:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:01:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 17:01:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:01:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 17:01:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:01:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 17:01:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:01:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:01:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:46,919 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-08 17:01:46,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:46,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186843056] [2024-11-08 17:01:46,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186843056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:01:46,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993774255] [2024-11-08 17:01:46,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:01:46,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:01:46,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:01:46,923 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:01:46,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 17:01:47,496 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:01:47,496 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:01:47,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-11-08 17:01:47,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:01:47,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-08 17:01:48,039 INFO L349 Elim1Store]: treesize reduction 50, result has 41.2 percent of original size [2024-11-08 17:01:48,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 104 [2024-11-08 17:01:48,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2024-11-08 17:01:48,057 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:01:48,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-08 17:01:48,104 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:01:48,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 9 [2024-11-08 17:01:48,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-08 17:01:48,377 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse1 (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse0))) (and (= (select |c_#memory_$Pointer$#2.base| .cse0) .cse1) (= (store .cse1 24 .cse0) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) is different from true [2024-11-08 17:01:49,106 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse1 (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse0))) (and (= (select |c_#memory_$Pointer$#2.base| .cse0) .cse1) (= (store .cse1 24 .cse0) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (let ((.cse3 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (let ((.cse2 (select (store (store |c_#memory_$Pointer$#2.base| .cse3 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| v_DerPreprocessor_6) .cse3))) (and (= .cse2 (select |c_#memory_$Pointer$#2.base| .cse3)) (= (store .cse2 24 .cse3) v_DerPreprocessor_6))))))) is different from true [2024-11-08 17:01:49,562 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse1 (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse0))) (and (= (select |c_#memory_$Pointer$#2.base| .cse0) .cse1) (= (store .cse1 24 .cse0) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (let ((.cse3 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (let ((.cse2 (select (store (store |c_#memory_$Pointer$#2.base| .cse3 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| v_DerPreprocessor_6) .cse3))) (and (= .cse2 (select |c_#memory_$Pointer$#2.base| .cse3)) (= (store .cse2 24 .cse3) v_DerPreprocessor_6)))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse5 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24))) (let ((.cse4 (select (store (store |c_#memory_$Pointer$#2.base| .cse5 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| v_DerPreprocessor_6) .cse5))) (and (= (store .cse4 24 .cse5) v_DerPreprocessor_6) (= .cse4 (select |c_#memory_$Pointer$#2.base| .cse5)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|)))) is different from true [2024-11-08 17:01:50,587 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#2.base| .cse1 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 v_DerPreprocessor_6) .cse1))) (and (= (store .cse0 24 .cse1) v_DerPreprocessor_6) (= (select |c_#memory_$Pointer$#2.base| .cse1) .cse0))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24)))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse2 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse3 (select (store (store |c_#memory_$Pointer$#2.base| .cse2 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse2))) (and (= (select |c_#memory_$Pointer$#2.base| .cse2) .cse3) (= (store .cse3 24 .cse2) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (let ((.cse5 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (let ((.cse4 (select (store (store |c_#memory_$Pointer$#2.base| .cse5 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| v_DerPreprocessor_6) .cse5))) (and (= .cse4 (select |c_#memory_$Pointer$#2.base| .cse5)) (= (store .cse4 24 .cse5) v_DerPreprocessor_6)))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse7 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24))) (let ((.cse6 (select (store (store |c_#memory_$Pointer$#2.base| .cse7 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| v_DerPreprocessor_6) .cse7))) (and (= (store .cse6 24 .cse7) v_DerPreprocessor_6) (= .cse6 (select |c_#memory_$Pointer$#2.base| .cse7)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|)))) is different from true [2024-11-08 17:01:51,368 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#2.base| .cse1 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 v_DerPreprocessor_6) .cse1))) (and (= (store .cse0 24 .cse1) v_DerPreprocessor_6) (= (select |c_#memory_$Pointer$#2.base| .cse1) .cse0))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24)))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse2 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse3 (select (store (store |c_#memory_$Pointer$#2.base| .cse2 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse2))) (and (= (select |c_#memory_$Pointer$#2.base| .cse2) .cse3) (= (store .cse3 24 .cse2) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (let ((.cse5 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (let ((.cse4 (select (store (store |c_#memory_$Pointer$#2.base| .cse5 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| v_DerPreprocessor_6) .cse5))) (and (= .cse4 (select |c_#memory_$Pointer$#2.base| .cse5)) (= (store .cse4 24 .cse5) v_DerPreprocessor_6)))))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 Int) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse6 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2) 24))) (let ((.cse7 (select (store (store |c_#memory_$Pointer$#2.base| .cse6 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 v_DerPreprocessor_6) .cse6))) (and (= (select |c_#memory_$Pointer$#2.base| .cse6) .cse7) (= v_DerPreprocessor_6 (store .cse7 24 .cse6)))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse9 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24))) (let ((.cse8 (select (store (store |c_#memory_$Pointer$#2.base| .cse9 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| v_DerPreprocessor_6) .cse9))) (and (= (store .cse8 24 .cse9) v_DerPreprocessor_6) (= .cse8 (select |c_#memory_$Pointer$#2.base| .cse9)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|)))) is different from true [2024-11-08 17:01:52,203 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#2.base| .cse1 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 v_DerPreprocessor_6) .cse1))) (and (= (store .cse0 24 .cse1) v_DerPreprocessor_6) (= (select |c_#memory_$Pointer$#2.base| .cse1) .cse0))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24)))) (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 Int) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse2 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3) 24))) (let ((.cse3 (select (store (store |c_#memory_$Pointer$#2.base| .cse2 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 v_DerPreprocessor_6) .cse2))) (and (= (select |c_#memory_$Pointer$#2.base| .cse2) .cse3) (= v_DerPreprocessor_6 (store .cse3 24 .cse2))))))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse4 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse5 (select (store (store |c_#memory_$Pointer$#2.base| .cse4 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse4))) (and (= (select |c_#memory_$Pointer$#2.base| .cse4) .cse5) (= (store .cse5 24 .cse4) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (let ((.cse7 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (let ((.cse6 (select (store (store |c_#memory_$Pointer$#2.base| .cse7 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| v_DerPreprocessor_6) .cse7))) (and (= .cse6 (select |c_#memory_$Pointer$#2.base| .cse7)) (= (store .cse6 24 .cse7) v_DerPreprocessor_6)))))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 Int) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse8 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2) 24))) (let ((.cse9 (select (store (store |c_#memory_$Pointer$#2.base| .cse8 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 v_DerPreprocessor_6) .cse8))) (and (= (select |c_#memory_$Pointer$#2.base| .cse8) .cse9) (= v_DerPreprocessor_6 (store .cse9 24 .cse8)))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse11 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24))) (let ((.cse10 (select (store (store |c_#memory_$Pointer$#2.base| .cse11 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| v_DerPreprocessor_6) .cse11))) (and (= (store .cse10 24 .cse11) v_DerPreprocessor_6) (= .cse10 (select |c_#memory_$Pointer$#2.base| .cse11)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|)))) is different from true [2024-11-08 17:01:52,310 WARN L873 $PredicateComparison]: unable to prove that (and (= c_assume_abort_if_not_~cond |c_assume_abort_if_not_#in~cond|) (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#2.base| .cse1 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 v_DerPreprocessor_6) .cse1))) (and (= (store .cse0 24 .cse1) v_DerPreprocessor_6) (= (select |c_#memory_$Pointer$#2.base| .cse1) .cse0))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24)))) (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 Int) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse2 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3) 24))) (let ((.cse3 (select (store (store |c_#memory_$Pointer$#2.base| .cse2 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 v_DerPreprocessor_6) .cse2))) (and (= (select |c_#memory_$Pointer$#2.base| .cse2) .cse3) (= v_DerPreprocessor_6 (store .cse3 24 .cse2))))))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse4 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse5 (select (store (store |c_#memory_$Pointer$#2.base| .cse4 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse4))) (and (= (select |c_#memory_$Pointer$#2.base| .cse4) .cse5) (= (store .cse5 24 .cse4) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (let ((.cse7 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (let ((.cse6 (select (store (store |c_#memory_$Pointer$#2.base| .cse7 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| v_DerPreprocessor_6) .cse7))) (and (= .cse6 (select |c_#memory_$Pointer$#2.base| .cse7)) (= (store .cse6 24 .cse7) v_DerPreprocessor_6)))))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 Int) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse8 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2) 24))) (let ((.cse9 (select (store (store |c_#memory_$Pointer$#2.base| .cse8 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 v_DerPreprocessor_6) .cse8))) (and (= (select |c_#memory_$Pointer$#2.base| .cse8) .cse9) (= v_DerPreprocessor_6 (store .cse9 24 .cse8)))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse11 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24))) (let ((.cse10 (select (store (store |c_#memory_$Pointer$#2.base| .cse11 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| v_DerPreprocessor_6) .cse11))) (and (= (store .cse10 24 .cse11) v_DerPreprocessor_6) (= .cse10 (select |c_#memory_$Pointer$#2.base| .cse11)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|)))) is different from true [2024-11-08 17:01:52,420 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#2.base| .cse1 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 v_DerPreprocessor_6) .cse1))) (and (= (store .cse0 24 .cse1) v_DerPreprocessor_6) (= (select |c_#memory_$Pointer$#2.base| .cse1) .cse0))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24)))) (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 Int) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse2 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3) 24))) (let ((.cse3 (select (store (store |c_#memory_$Pointer$#2.base| .cse2 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_3 v_DerPreprocessor_6) .cse2))) (and (= (select |c_#memory_$Pointer$#2.base| .cse2) .cse3) (= v_DerPreprocessor_6 (store .cse3 24 .cse2))))))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse4 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse5 (select (store (store |c_#memory_$Pointer$#2.base| .cse4 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse4))) (and (= (select |c_#memory_$Pointer$#2.base| .cse4) .cse5) (= (store .cse5 24 .cse4) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (let ((.cse7 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (let ((.cse6 (select (store (store |c_#memory_$Pointer$#2.base| .cse7 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| v_DerPreprocessor_6) .cse7))) (and (= .cse6 (select |c_#memory_$Pointer$#2.base| .cse7)) (= (store .cse6 24 .cse7) v_DerPreprocessor_6)))))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 Int) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse8 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2) 24))) (let ((.cse9 (select (store (store |c_#memory_$Pointer$#2.base| .cse8 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 v_DerPreprocessor_6) .cse8))) (and (= (select |c_#memory_$Pointer$#2.base| .cse8) .cse9) (= v_DerPreprocessor_6 (store .cse9 24 .cse8)))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_2) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse11 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24))) (let ((.cse10 (select (store (store |c_#memory_$Pointer$#2.base| .cse11 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| v_DerPreprocessor_6) .cse11))) (and (= (store .cse10 24 .cse11) v_DerPreprocessor_6) (= .cse10 (select |c_#memory_$Pointer$#2.base| .cse11)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|))) (not (= (mod |c_assume_abort_if_not_#in~cond| 256) 0))) is different from true [2024-11-08 17:01:53,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:01:53,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 299 [2024-11-08 17:01:53,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:01:58,434 WARN L286 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 1082 DAG size of output: 171 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-08 17:01:58,434 INFO L349 Elim1Store]: treesize reduction 2729, result has 10.3 percent of original size [2024-11-08 17:01:58,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 21 select indices, 21 select index equivalence classes, 1 disjoint index pairs (out of 210 index pairs), introduced 30 new quantified variables, introduced 247 case distinctions, treesize of input 722 treesize of output 865 [2024-11-08 17:01:58,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:01:59,073 INFO L224 Elim1Store]: Index analysis took 402 ms [2024-11-08 17:02:04,448 WARN L286 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 1127 DAG size of output: 210 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-08 17:02:04,448 INFO L349 Elim1Store]: treesize reduction 2961, result has 12.3 percent of original size [2024-11-08 17:02:04,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 21 select indices, 21 select index equivalence classes, 1 disjoint index pairs (out of 210 index pairs), introduced 23 new quantified variables, introduced 248 case distinctions, treesize of input 487 treesize of output 853 [2024-11-08 17:02:04,898 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:02:04,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 690 treesize of output 653 [2024-11-08 17:02:05,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 623 treesize of output 589 [2024-11-08 17:02:08,402 INFO L349 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2024-11-08 17:02:08,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 160 treesize of output 136 [2024-11-08 17:02:08,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 135 [2024-11-08 17:02:08,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-08 17:02:08,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:14,010 WARN L286 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 1082 DAG size of output: 171 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-08 17:02:14,011 INFO L349 Elim1Store]: treesize reduction 2729, result has 10.3 percent of original size [2024-11-08 17:02:14,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 21 select indices, 21 select index equivalence classes, 1 disjoint index pairs (out of 210 index pairs), introduced 30 new quantified variables, introduced 247 case distinctions, treesize of input 799 treesize of output 938 [2024-11-08 17:02:14,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:14,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 101 [2024-11-08 17:02:14,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:14,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:14,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 83 [2024-11-08 17:02:14,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:14,695 INFO L224 Elim1Store]: Index analysis took 314 ms [2024-11-08 17:02:20,562 WARN L286 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 1164 DAG size of output: 254 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-08 17:02:20,563 INFO L349 Elim1Store]: treesize reduction 3242, result has 14.9 percent of original size [2024-11-08 17:02:20,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 21 select indices, 21 select index equivalence classes, 1 disjoint index pairs (out of 210 index pairs), introduced 23 new quantified variables, introduced 251 case distinctions, treesize of input 396 treesize of output 906 [2024-11-08 17:02:20,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2024-11-08 17:02:20,977 INFO L224 Elim1Store]: Index analysis took 107 ms [2024-11-08 17:02:22,989 INFO L349 Elim1Store]: treesize reduction 986, result has 32.7 percent of original size [2024-11-08 17:02:22,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 1085 treesize of output 1381 [2024-11-08 17:02:28,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2024-11-08 17:02:28,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-08 17:02:28,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-08 17:02:28,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 15 [2024-11-08 17:02:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 47 not checked. [2024-11-08 17:02:29,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:02:30,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:02:30,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 80 [2024-11-08 17:02:30,249 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:02:30,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 636 treesize of output 626 [2024-11-08 17:02:30,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 278 [2024-11-08 17:02:30,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 17:02:30,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 158 [2024-11-08 17:02:30,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1594 treesize of output 1582 [2024-11-08 17:02:30,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993774255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:02:30,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:02:30,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 31] total 44 [2024-11-08 17:02:30,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817974836] [2024-11-08 17:02:30,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:02:30,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-08 17:02:30,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:30,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-08 17:02:30,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1590, Unknown=92, NotChecked=712, Total=2550 [2024-11-08 17:02:30,849 INFO L87 Difference]: Start difference. First operand 248 states and 322 transitions. Second operand has 44 states, 35 states have (on average 3.5714285714285716) internal successors, (125), 33 states have internal predecessors, (125), 17 states have call successors, (24), 12 states have call predecessors, (24), 10 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-08 17:02:32,073 WARN L873 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse1 (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse0))) (and (= (select |c_#memory_$Pointer$#2.base| .cse0) .cse1) (= (store .cse1 24 .cse0) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))))) is different from true [2024-11-08 17:02:36,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:02:37,467 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24))) (let ((.cse0 (select (store (store |c_#memory_$Pointer$#2.base| .cse1 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 v_DerPreprocessor_6) .cse1))) (and (= (store .cse0 24 .cse1) v_DerPreprocessor_6) (= (select |c_#memory_$Pointer$#2.base| .cse1) .cse0))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24)))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse2 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse3 (select (store (store |c_#memory_$Pointer$#2.base| .cse2 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse2))) (and (= (select |c_#memory_$Pointer$#2.base| .cse2) .cse3) (= (store .cse3 24 .cse2) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) (= c_aws_linked_list_node_prev_is_valid_~node.offset |c_aws_linked_list_node_prev_is_valid_#in~node.offset|) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (let ((.cse5 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (let ((.cse4 (select (store (store |c_#memory_$Pointer$#2.base| .cse5 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| v_DerPreprocessor_6) .cse5))) (and (= .cse4 (select |c_#memory_$Pointer$#2.base| .cse5)) (= (store .cse4 24 .cse5) v_DerPreprocessor_6)))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse7 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24))) (let ((.cse6 (select (store (store |c_#memory_$Pointer$#2.base| .cse7 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| v_DerPreprocessor_6) .cse7))) (and (= (store .cse6 24 .cse7) v_DerPreprocessor_6) (= .cse6 (select |c_#memory_$Pointer$#2.base| .cse7)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|))) (= |c_aws_linked_list_node_prev_is_valid_#in~node.base| c_aws_linked_list_node_prev_is_valid_~node.base)) is different from true [2024-11-08 17:02:37,474 WARN L873 $PredicateComparison]: unable to prove that (and (let ((.cse2 (+ 8 |c_aws_linked_list_node_prev_is_valid_#in~node.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_aws_linked_list_node_prev_is_valid_#in~node.base|) .cse2)) (.cse1 (select (select |c_#memory_$Pointer$#2.offset| |c_aws_linked_list_node_prev_is_valid_#in~node.base|) .cse2))) (or |c_aws_linked_list_node_prev_is_valid_#t~short321| (not (= (select (select |c_#memory_$Pointer$#2.offset| .cse0) .cse1) |c_aws_linked_list_node_prev_is_valid_#in~node.offset|)) (not (= |c_aws_linked_list_node_prev_is_valid_#in~node.base| (select (select |c_#memory_$Pointer$#2.base| .cse0) .cse1)))))) (or (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse4 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24))) (let ((.cse3 (select (store (store |c_#memory_$Pointer$#2.base| .cse4 v_DerPreprocessor_5) v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 v_DerPreprocessor_6) .cse4))) (and (= (store .cse3 24 .cse4) v_DerPreprocessor_6) (= (select |c_#memory_$Pointer$#2.base| .cse4) .cse3))))) (exists ((v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 Int)) (= v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1 (select (select |c_#memory_$Pointer$#2.base| v_aws_linked_list_insert_before_~before.base_BEFORE_CALL_1) 24)))) (or (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (let ((.cse5 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24))) (let ((.cse6 (select (store (store |c_#memory_$Pointer$#2.base| .cse5 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| v_DerPreprocessor_6) .cse5))) (and (= (select |c_#memory_$Pointer$#2.base| .cse5) .cse6) (= (store .cse6 24 .cse5) v_DerPreprocessor_6))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_8|) 24)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (= |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (exists ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| Int)) (let ((.cse8 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9|) 24))) (let ((.cse7 (select (store (store |c_#memory_$Pointer$#2.base| .cse8 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_9| v_DerPreprocessor_6) .cse8))) (and (= .cse7 (select |c_#memory_$Pointer$#2.base| .cse8)) (= (store .cse7 24 .cse8) v_DerPreprocessor_6)))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse10 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24))) (let ((.cse9 (select (store (store |c_#memory_$Pointer$#2.base| .cse10 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| v_DerPreprocessor_6) .cse10))) (and (= (store .cse9 24 .cse10) v_DerPreprocessor_6) (= .cse9 (select |c_#memory_$Pointer$#2.base| .cse10)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|) 24) |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_10|)))) is different from true [2024-11-08 17:02:41,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:02:46,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:46,486 INFO L93 Difference]: Finished difference Result 524 states and 670 transitions. [2024-11-08 17:02:46,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-08 17:02:46,486 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 35 states have (on average 3.5714285714285716) internal successors, (125), 33 states have internal predecessors, (125), 17 states have call successors, (24), 12 states have call predecessors, (24), 10 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) Word has length 105 [2024-11-08 17:02:46,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:46,490 INFO L225 Difference]: With dead ends: 524 [2024-11-08 17:02:46,490 INFO L226 Difference]: Without dead ends: 511 [2024-11-08 17:02:46,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=303, Invalid=3794, Unknown=107, NotChecked=1496, Total=5700 [2024-11-08 17:02:46,492 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 237 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 55 mSolverCounterUnsat, 173 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 6855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 173 IncrementalHoareTripleChecker+Unknown, 4781 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:46,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 3098 Invalid, 6855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1846 Invalid, 173 Unknown, 4781 Unchecked, 13.9s Time] [2024-11-08 17:02:46,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-08 17:02:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 459. [2024-11-08 17:02:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 337 states have (on average 1.2047477744807122) internal successors, (406), 344 states have internal predecessors, (406), 83 states have call successors, (83), 35 states have call predecessors, (83), 38 states have return successors, (89), 79 states have call predecessors, (89), 81 states have call successors, (89) [2024-11-08 17:02:46,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 578 transitions. [2024-11-08 17:02:46,579 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 578 transitions. Word has length 105 [2024-11-08 17:02:46,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:46,580 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 578 transitions. [2024-11-08 17:02:46,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 35 states have (on average 3.5714285714285716) internal successors, (125), 33 states have internal predecessors, (125), 17 states have call successors, (24), 12 states have call predecessors, (24), 10 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-08 17:02:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 578 transitions. [2024-11-08 17:02:46,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:02:46,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:46,582 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:02:46,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 17:02:46,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 17:02:46,787 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:46,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:46,787 INFO L85 PathProgramCache]: Analyzing trace with hash -297182649, now seen corresponding path program 1 times [2024-11-08 17:02:46,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:46,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523561042] [2024-11-08 17:02:46,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:46,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:02:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:02:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:02:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:02:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:02:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:02:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:02:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:02:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:02:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:02:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:02:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:02:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 17:02:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 17:02:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:49,369 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-08 17:02:49,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:49,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523561042] [2024-11-08 17:02:49,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523561042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:49,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:02:49,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 17:02:49,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216643554] [2024-11-08 17:02:49,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:49,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 17:02:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:49,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 17:02:49,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:02:49,371 INFO L87 Difference]: Start difference. First operand 459 states and 578 transitions. Second operand has 16 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 7 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-08 17:02:50,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:50,423 INFO L93 Difference]: Finished difference Result 485 states and 614 transitions. [2024-11-08 17:02:50,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 17:02:50,424 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 7 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 119 [2024-11-08 17:02:50,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:50,428 INFO L225 Difference]: With dead ends: 485 [2024-11-08 17:02:50,428 INFO L226 Difference]: Without dead ends: 483 [2024-11-08 17:02:50,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2024-11-08 17:02:50,429 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 24 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:50,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1883 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:02:50,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-08 17:02:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 467. [2024-11-08 17:02:50,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 342 states have (on average 1.2017543859649122) internal successors, (411), 350 states have internal predecessors, (411), 84 states have call successors, (84), 36 states have call predecessors, (84), 40 states have return successors, (94), 80 states have call predecessors, (94), 82 states have call successors, (94) [2024-11-08 17:02:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 589 transitions. [2024-11-08 17:02:50,511 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 589 transitions. Word has length 119 [2024-11-08 17:02:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:50,511 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 589 transitions. [2024-11-08 17:02:50,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 7 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-08 17:02:50,512 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 589 transitions. [2024-11-08 17:02:50,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:02:50,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:50,514 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:02:50,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:02:50,515 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:50,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:50,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1106529275, now seen corresponding path program 1 times [2024-11-08 17:02:50,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:50,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103948447] [2024-11-08 17:02:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:50,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:02:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:02:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:02:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:02:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:02:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:02:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:02:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:02:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:02:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:51,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:02:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:52,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:02:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:52,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:02:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:52,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 17:02:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 17:02:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-08 17:02:52,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:52,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103948447] [2024-11-08 17:02:52,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103948447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:52,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:02:52,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 17:02:52,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924151579] [2024-11-08 17:02:52,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:52,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:02:52,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:52,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:02:52,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:02:52,226 INFO L87 Difference]: Start difference. First operand 467 states and 589 transitions. Second operand has 15 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-08 17:02:52,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:52,858 INFO L93 Difference]: Finished difference Result 661 states and 853 transitions. [2024-11-08 17:02:52,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:02:52,858 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 119 [2024-11-08 17:02:52,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:52,862 INFO L225 Difference]: With dead ends: 661 [2024-11-08 17:02:52,862 INFO L226 Difference]: Without dead ends: 516 [2024-11-08 17:02:52,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:02:52,863 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 40 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:52,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1195 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:02:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-08 17:02:52,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 477. [2024-11-08 17:02:52,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 350 states have (on average 1.2028571428571428) internal successors, (421), 360 states have internal predecessors, (421), 84 states have call successors, (84), 36 states have call predecessors, (84), 42 states have return successors, (98), 80 states have call predecessors, (98), 82 states have call successors, (98) [2024-11-08 17:02:52,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 603 transitions. [2024-11-08 17:02:52,956 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 603 transitions. Word has length 119 [2024-11-08 17:02:52,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:52,957 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 603 transitions. [2024-11-08 17:02:52,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-08 17:02:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 603 transitions. [2024-11-08 17:02:52,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:02:52,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:52,960 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 17:02:52,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 17:02:52,960 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:52,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:52,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1499556285, now seen corresponding path program 1 times [2024-11-08 17:02:52,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:52,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666649420] [2024-11-08 17:02:52,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:52,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:02:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:02:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:02:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:02:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:02:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:02:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:02:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:02:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:02:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:02:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:02:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:02:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 17:02:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 17:02:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:53,609 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-08 17:02:53,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:53,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666649420] [2024-11-08 17:02:53,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666649420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:02:53,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:02:53,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 17:02:53,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925715849] [2024-11-08 17:02:53,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:02:53,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:02:53,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:02:53,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:02:53,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:02:53,611 INFO L87 Difference]: Start difference. First operand 477 states and 603 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 6 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-08 17:02:53,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:02:53,948 INFO L93 Difference]: Finished difference Result 662 states and 852 transitions. [2024-11-08 17:02:53,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 17:02:53,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 6 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 119 [2024-11-08 17:02:53,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:02:53,952 INFO L225 Difference]: With dead ends: 662 [2024-11-08 17:02:53,953 INFO L226 Difference]: Without dead ends: 502 [2024-11-08 17:02:53,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:02:53,954 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 33 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:02:53,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 1145 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:02:53,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-08 17:02:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 473. [2024-11-08 17:02:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 348 states have (on average 1.2040229885057472) internal successors, (419), 357 states have internal predecessors, (419), 83 states have call successors, (83), 36 states have call predecessors, (83), 41 states have return successors, (93), 79 states have call predecessors, (93), 81 states have call successors, (93) [2024-11-08 17:02:54,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 595 transitions. [2024-11-08 17:02:54,044 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 595 transitions. Word has length 119 [2024-11-08 17:02:54,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:02:54,045 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 595 transitions. [2024-11-08 17:02:54,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 6 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-08 17:02:54,045 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 595 transitions. [2024-11-08 17:02:54,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:02:54,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:02:54,048 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:02:54,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 17:02:54,048 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:02:54,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:02:54,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1681622861, now seen corresponding path program 1 times [2024-11-08 17:02:54,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:02:54,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773889101] [2024-11-08 17:02:54,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:54,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:02:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:58,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:02:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:58,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:02:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:58,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 17:02:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:02:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 17:02:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:02:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 17:02:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:02:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 17:02:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:02:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:02:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 17:02:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 17:02:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:59,881 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 17:02:59,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:02:59,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773889101] [2024-11-08 17:02:59,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773889101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:02:59,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113059784] [2024-11-08 17:02:59,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:02:59,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:02:59,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:02:59,884 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:02:59,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 17:03:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:00,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 204 conjuncts are in the unsatisfiable core [2024-11-08 17:03:00,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:03:00,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-08 17:03:00,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-08 17:03:00,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:00,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 17:03:00,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-08 17:03:00,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:00,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 17:03:01,031 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-08 17:03:01,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 70 [2024-11-08 17:03:01,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:01,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 18 [2024-11-08 17:03:08,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:08,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:08,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:08,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:09,446 INFO L349 Elim1Store]: treesize reduction 1003, result has 5.7 percent of original size [2024-11-08 17:03:09,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 525 treesize of output 476 [2024-11-08 17:03:09,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:09,780 INFO L349 Elim1Store]: treesize reduction 396, result has 20.3 percent of original size [2024-11-08 17:03:09,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 223 treesize of output 167 [2024-11-08 17:03:09,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:09,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:09,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:09,874 INFO L349 Elim1Store]: treesize reduction 20, result has 47.4 percent of original size [2024-11-08 17:03:09,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 80 [2024-11-08 17:03:09,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-11-08 17:03:10,465 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:03:10,465 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:03:10,470 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-08 17:03:13,243 INFO L349 Elim1Store]: treesize reduction 169, result has 37.2 percent of original size [2024-11-08 17:03:13,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 34 case distinctions, treesize of input 353 treesize of output 245 [2024-11-08 17:03:13,548 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 6 proven. 52 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 17:03:13,548 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:03:14,569 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse9 (select |c_#memory_$Pointer$#2.base| c_aws_linked_list_insert_before_~to_add.base)) (.cse10 (select |c_#memory_$Pointer$#2.offset| c_aws_linked_list_insert_before_~to_add.base)) (.cse3 (+ 8 c_aws_linked_list_insert_before_~before.offset))) (and (forall ((aws_linked_list_insert_before_~to_add.offset Int) (v_ArrVal_2530 (Array Int Int)) (v_ArrVal_2526 Int) (v_ArrVal_2527 Int)) (= c_aws_linked_list_insert_before_~to_add.base (let ((.cse1 (+ aws_linked_list_insert_before_~to_add.offset 8))) (let ((.cse7 (store |c_#memory_$Pointer$#2.offset| c_aws_linked_list_insert_before_~to_add.base (store (store .cse10 aws_linked_list_insert_before_~to_add.offset v_ArrVal_2527) .cse1 (select (select (store |c_#memory_$Pointer$#2.offset| c_aws_linked_list_insert_before_~to_add.base (store .cse10 aws_linked_list_insert_before_~to_add.offset c_aws_linked_list_insert_before_~before.offset)) c_aws_linked_list_insert_before_~before.base) .cse3)))) (.cse4 (store |c_#memory_$Pointer$#2.base| c_aws_linked_list_insert_before_~to_add.base (let ((.cse8 (store .cse9 aws_linked_list_insert_before_~to_add.offset v_ArrVal_2526))) (store .cse8 .cse1 (select (select (store |c_#memory_$Pointer$#2.base| c_aws_linked_list_insert_before_~to_add.base .cse8) c_aws_linked_list_insert_before_~before.base) .cse3)))))) (let ((.cse5 (select (select .cse4 c_aws_linked_list_insert_before_~before.base) .cse3)) (.cse6 (select (select .cse7 c_aws_linked_list_insert_before_~before.base) .cse3))) (select (let ((.cse0 (let ((.cse2 (store .cse4 .cse5 (store (select .cse4 .cse5) .cse6 c_aws_linked_list_insert_before_~to_add.base)))) (store .cse2 c_aws_linked_list_insert_before_~before.base (store (select .cse2 c_aws_linked_list_insert_before_~before.base) .cse3 c_aws_linked_list_insert_before_~to_add.base))))) (select .cse0 (select (select .cse0 c_aws_linked_list_insert_before_~to_add.base) .cse1))) (select (select (store (store .cse7 .cse5 (store (select .cse7 .cse5) .cse6 aws_linked_list_insert_before_~to_add.offset)) c_aws_linked_list_insert_before_~before.base v_ArrVal_2530) c_aws_linked_list_insert_before_~to_add.base) .cse1))))))) (forall ((aws_linked_list_insert_before_~to_add.offset Int) (v_ArrVal_2530 (Array Int Int)) (v_ArrVal_2526 Int) (v_ArrVal_2527 Int)) (= aws_linked_list_insert_before_~to_add.offset (let ((.cse16 (+ aws_linked_list_insert_before_~to_add.offset 8))) (let ((.cse17 (store |c_#memory_$Pointer$#2.offset| c_aws_linked_list_insert_before_~to_add.base (store (store .cse10 aws_linked_list_insert_before_~to_add.offset v_ArrVal_2527) .cse16 (select (select (store |c_#memory_$Pointer$#2.offset| c_aws_linked_list_insert_before_~to_add.base (store .cse10 aws_linked_list_insert_before_~to_add.offset c_aws_linked_list_insert_before_~before.offset)) c_aws_linked_list_insert_before_~before.base) .cse3)))) (.cse13 (store |c_#memory_$Pointer$#2.base| c_aws_linked_list_insert_before_~to_add.base (let ((.cse18 (store .cse9 aws_linked_list_insert_before_~to_add.offset v_ArrVal_2526))) (store .cse18 .cse16 (select (select (store |c_#memory_$Pointer$#2.base| c_aws_linked_list_insert_before_~to_add.base .cse18) c_aws_linked_list_insert_before_~before.base) .cse3)))))) (let ((.cse14 (select (select .cse13 c_aws_linked_list_insert_before_~before.base) .cse3)) (.cse15 (select (select .cse17 c_aws_linked_list_insert_before_~before.base) .cse3))) (let ((.cse11 (store (store .cse17 .cse14 (store (select .cse17 .cse14) .cse15 aws_linked_list_insert_before_~to_add.offset)) c_aws_linked_list_insert_before_~before.base v_ArrVal_2530))) (select (select .cse11 (select (select (let ((.cse12 (store .cse13 .cse14 (store (select .cse13 .cse14) .cse15 c_aws_linked_list_insert_before_~to_add.base)))) (store .cse12 c_aws_linked_list_insert_before_~before.base (store (select .cse12 c_aws_linked_list_insert_before_~before.base) .cse3 c_aws_linked_list_insert_before_~to_add.base))) c_aws_linked_list_insert_before_~to_add.base) .cse16)) (select (select .cse11 c_aws_linked_list_insert_before_~to_add.base) .cse16)))))))))) is different from false [2024-11-08 17:03:14,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113059784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:14,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:03:14,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 33] total 60 [2024-11-08 17:03:14,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099630259] [2024-11-08 17:03:14,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:03:14,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-08 17:03:14,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:14,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-08 17:03:14,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=4213, Unknown=1, NotChecked=130, Total=4556 [2024-11-08 17:03:14,612 INFO L87 Difference]: Start difference. First operand 473 states and 595 transitions. Second operand has 60 states, 53 states have (on average 2.830188679245283) internal successors, (150), 52 states have internal predecessors, (150), 18 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (26), 14 states have call predecessors, (26), 16 states have call successors, (26) [2024-11-08 17:03:34,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:03:34,219 INFO L93 Difference]: Finished difference Result 977 states and 1318 transitions. [2024-11-08 17:03:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-11-08 17:03:34,220 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 53 states have (on average 2.830188679245283) internal successors, (150), 52 states have internal predecessors, (150), 18 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (26), 14 states have call predecessors, (26), 16 states have call successors, (26) Word has length 119 [2024-11-08 17:03:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:03:34,226 INFO L225 Difference]: With dead ends: 977 [2024-11-08 17:03:34,227 INFO L226 Difference]: Without dead ends: 975 [2024-11-08 17:03:34,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 131 SyntacticMatches, 13 SemanticMatches, 144 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5855 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=924, Invalid=19959, Unknown=1, NotChecked=286, Total=21170 [2024-11-08 17:03:34,234 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 530 mSDsluCounter, 3851 mSDsCounter, 0 mSdLazyCounter, 5910 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 6131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 5910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:03:34,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 3991 Invalid, 6131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [221 Valid, 5910 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-08 17:03:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-11-08 17:03:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 800. [2024-11-08 17:03:34,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 556 states have (on average 1.185251798561151) internal successors, (659), 573 states have internal predecessors, (659), 169 states have call successors, (169), 62 states have call predecessors, (169), 74 states have return successors, (189), 164 states have call predecessors, (189), 165 states have call successors, (189) [2024-11-08 17:03:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1017 transitions. [2024-11-08 17:03:34,465 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1017 transitions. Word has length 119 [2024-11-08 17:03:34,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:03:34,466 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1017 transitions. [2024-11-08 17:03:34,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 53 states have (on average 2.830188679245283) internal successors, (150), 52 states have internal predecessors, (150), 18 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (26), 14 states have call predecessors, (26), 16 states have call successors, (26) [2024-11-08 17:03:34,466 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1017 transitions. [2024-11-08 17:03:34,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 17:03:34,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:03:34,470 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 17:03:34,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 17:03:34,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-08 17:03:34,671 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:03:34,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash -166232678, now seen corresponding path program 1 times [2024-11-08 17:03:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641656665] [2024-11-08 17:03:34,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:34,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:03:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:03:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 17:03:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:03:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 17:03:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 17:03:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:03:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:03:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:03:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 17:03:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:03:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:03:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 17:03:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 17:03:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 17:03:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-08 17:03:35,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:35,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641656665] [2024-11-08 17:03:35,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641656665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:03:35,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:03:35,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:03:35,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529218969] [2024-11-08 17:03:35,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:03:35,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:03:35,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:35,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:03:35,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:03:35,177 INFO L87 Difference]: Start difference. First operand 800 states and 1017 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 17:03:35,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:03:35,441 INFO L93 Difference]: Finished difference Result 818 states and 1034 transitions. [2024-11-08 17:03:35,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:03:35,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2024-11-08 17:03:35,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:03:35,447 INFO L225 Difference]: With dead ends: 818 [2024-11-08 17:03:35,447 INFO L226 Difference]: Without dead ends: 816 [2024-11-08 17:03:35,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:03:35,449 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 3 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:03:35,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 598 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:03:35,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-08 17:03:35,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2024-11-08 17:03:35,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 568 states have (on average 1.181338028169014) internal successors, (671), 585 states have internal predecessors, (671), 169 states have call successors, (169), 66 states have call predecessors, (169), 78 states have return successors, (189), 164 states have call predecessors, (189), 165 states have call successors, (189) [2024-11-08 17:03:35,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1029 transitions. [2024-11-08 17:03:35,672 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1029 transitions. Word has length 125 [2024-11-08 17:03:35,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:03:35,673 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1029 transitions. [2024-11-08 17:03:35,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 17:03:35,673 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1029 transitions. [2024-11-08 17:03:35,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-08 17:03:35,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:03:35,677 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:03:35,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 17:03:35,677 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:03:35,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:35,677 INFO L85 PathProgramCache]: Analyzing trace with hash -553053475, now seen corresponding path program 1 times [2024-11-08 17:03:35,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:35,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185421392] [2024-11-08 17:03:35,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:35,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:03:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:03:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 17:03:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 17:03:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 17:03:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:03:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 17:03:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 17:03:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 17:03:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 17:03:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 17:03:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 17:03:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 17:03:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 17:03:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:37,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 17:03:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:38,160 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-08 17:03:38,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:38,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185421392] [2024-11-08 17:03:38,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185421392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:38,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653195559] [2024-11-08 17:03:38,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:38,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:38,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:38,163 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:03:38,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 17:03:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:38,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 182 conjuncts are in the unsatisfiable core [2024-11-08 17:03:38,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:03:38,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-08 17:03:39,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-08 17:03:39,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:39,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 17:03:39,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:39,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 18 [2024-11-08 17:03:39,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:39,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:39,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2024-11-08 17:03:39,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-08 17:03:41,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:41,732 INFO L349 Elim1Store]: treesize reduction 21, result has 27.6 percent of original size [2024-11-08 17:03:41,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 24 [2024-11-08 17:03:44,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:44,777 INFO L349 Elim1Store]: treesize reduction 993, result has 0.1 percent of original size [2024-11-08 17:03:44,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 215 treesize of output 159 [2024-11-08 17:03:44,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:45,317 INFO L349 Elim1Store]: treesize reduction 895, result has 10.0 percent of original size [2024-11-08 17:03:45,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 229 treesize of output 263 [2024-11-08 17:03:45,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:45,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 101 [2024-11-08 17:03:46,748 INFO L349 Elim1Store]: treesize reduction 1653, result has 11.4 percent of original size [2024-11-08 17:03:46,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 14 new quantified variables, introduced 51 case distinctions, treesize of input 1885 treesize of output 2014 [2024-11-08 17:03:46,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:46,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:46,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:03:47,106 INFO L349 Elim1Store]: treesize reduction 104, result has 29.3 percent of original size [2024-11-08 17:03:47,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 411 treesize of output 497 [2024-11-08 17:03:47,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 286 [2024-11-08 17:03:48,542 INFO L349 Elim1Store]: treesize reduction 52, result has 45.3 percent of original size [2024-11-08 17:03:48,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1190 treesize of output 1007 [2024-11-08 17:03:48,736 INFO L349 Elim1Store]: treesize reduction 22, result has 62.7 percent of original size [2024-11-08 17:03:48,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1038 treesize of output 755 [2024-11-08 17:03:48,969 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:03:48,982 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:03:48,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 28 [2024-11-08 17:03:55,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 10597 treesize of output 8568 [2024-11-08 17:04:07,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:07,478 INFO L349 Elim1Store]: treesize reduction 37, result has 35.1 percent of original size [2024-11-08 17:04:07,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 223 treesize of output 181 [2024-11-08 17:04:27,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38285 treesize of output 30852 [2024-11-08 17:05:10,858 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-08 17:05:11,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 250 [2024-11-08 17:05:12,816 INFO L349 Elim1Store]: treesize reduction 52, result has 45.3 percent of original size [2024-11-08 17:05:12,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 803 treesize of output 696 [2024-11-08 17:05:12,976 INFO L349 Elim1Store]: treesize reduction 22, result has 62.7 percent of original size [2024-11-08 17:05:12,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 607 treesize of output 424 [2024-11-08 17:05:12,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,017 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:13,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 172 [2024-11-08 17:05:13,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,178 INFO L349 Elim1Store]: treesize reduction 994, result has 0.1 percent of original size [2024-11-08 17:05:13,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 48 case distinctions, treesize of input 3508 treesize of output 2879 [2024-11-08 17:05:13,340 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-08 17:05:13,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1754 treesize of output 1610 [2024-11-08 17:05:13,392 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-08 17:05:13,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:13,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:14,402 INFO L349 Elim1Store]: treesize reduction 973, result has 9.8 percent of original size [2024-11-08 17:05:14,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 39 case distinctions, treesize of input 2603 treesize of output 2470 [2024-11-08 17:05:14,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:14,573 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:14,588 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:15,044 INFO L349 Elim1Store]: treesize reduction 272, result has 21.2 percent of original size [2024-11-08 17:05:15,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 164 treesize of output 398 [2024-11-08 17:05:15,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2024-11-08 17:05:17,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:17,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:18,278 INFO L349 Elim1Store]: treesize reduction 252, result has 26.3 percent of original size [2024-11-08 17:05:18,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 537 treesize of output 698 [2024-11-08 17:05:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:18,636 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:18,636 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:18,639 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:18,640 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:18,641 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:18,641 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:18,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 126 [2024-11-08 17:05:18,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:18,691 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:18,692 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:18,741 INFO L349 Elim1Store]: treesize reduction 90, result has 13.5 percent of original size [2024-11-08 17:05:18,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 133 treesize of output 93 [2024-11-08 17:05:19,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:19,248 INFO L349 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2024-11-08 17:05:19,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 298 treesize of output 260 [2024-11-08 17:05:19,256 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-08 17:05:19,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 17:05:19,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-08 17:05:19,457 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:542) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:521) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:514) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:325) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:290) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 17:05:19,462 INFO L158 Benchmark]: Toolchain (without parser) took 322534.42ms. Allocated memory was 132.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 90.0MB in the beginning and 706.7MB in the end (delta: -616.7MB). Peak memory consumption was 784.6MB. Max. memory is 16.1GB. [2024-11-08 17:05:19,464 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:05:19,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3518.01ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 89.6MB in the beginning and 108.0MB in the end (delta: -18.4MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2024-11-08 17:05:19,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 185.43ms. Allocated memory is still 178.3MB. Free memory was 108.0MB in the beginning and 102.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:05:19,465 INFO L158 Benchmark]: Boogie Preprocessor took 100.37ms. Allocated memory is still 178.3MB. Free memory was 102.9MB in the beginning and 97.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 17:05:19,467 INFO L158 Benchmark]: RCFGBuilder took 1126.21ms. Allocated memory is still 178.3MB. Free memory was 97.5MB in the beginning and 128.9MB in the end (delta: -31.4MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2024-11-08 17:05:19,467 INFO L158 Benchmark]: TraceAbstraction took 317593.80ms. Allocated memory was 178.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 128.9MB in the beginning and 706.7MB in the end (delta: -577.8MB). Peak memory consumption was 777.0MB. Max. memory is 16.1GB. [2024-11-08 17:05:19,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3518.01ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 89.6MB in the beginning and 108.0MB in the end (delta: -18.4MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 185.43ms. Allocated memory is still 178.3MB. Free memory was 108.0MB in the beginning and 102.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.37ms. Allocated memory is still 178.3MB. Free memory was 102.9MB in the beginning and 97.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1126.21ms. Allocated memory is still 178.3MB. Free memory was 97.5MB in the beginning and 128.9MB in the end (delta: -31.4MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * TraceAbstraction took 317593.80ms. Allocated memory was 178.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 128.9MB in the beginning and 706.7MB in the end (delta: -577.8MB). Peak memory consumption was 777.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-08 17:05:19,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX --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 4526081b0c55ba26ca543a72264ba075e2706c93c97faea07fd81ad62d180974 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:05:21,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:05:21,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-08 17:05:21,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:05:21,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:05:21,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:05:21,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:05:21,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:05:21,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:05:21,951 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:05:21,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:05:21,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:05:21,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:05:21,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:05:21,955 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:05:21,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:05:21,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:05:21,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:05:21,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:05:21,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:05:21,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:05:21,961 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:05:21,962 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:05:21,962 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:05:21,962 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:05:21,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:05:21,963 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:05:21,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:05:21,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:05:21,964 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:05:21,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:05:21,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:05:21,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:05:21,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:05:21,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:05:21,965 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:05:21,965 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:05:21,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:05:21,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:05:21,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:05:21,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:05:21,982 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4526081b0c55ba26ca543a72264ba075e2706c93c97faea07fd81ad62d180974 [2024-11-08 17:05:22,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:05:22,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:05:22,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:05:22,373 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:05:22,374 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:05:22,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i Unable to find full path for "g++" [2024-11-08 17:05:24,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:05:25,055 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:05:25,056 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2024-11-08 17:05:25,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/data/32f7e23be/96def0584cf6468db93ed7b4e63c9462/FLAG22999cd46 [2024-11-08 17:05:25,594 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/data/32f7e23be/96def0584cf6468db93ed7b4e63c9462 [2024-11-08 17:05:25,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:05:25,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:05:25,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:05:25,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:05:25,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:05:25,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:05:25" (1/1) ... [2024-11-08 17:05:25,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fef4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:25, skipping insertion in model container [2024-11-08 17:05:25,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:05:25" (1/1) ... [2024-11-08 17:05:25,755 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:05:26,102 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2024-11-08 17:05:26,110 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2024-11-08 17:05:27,008 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,157 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,158 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,160 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,184 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,191 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,191 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,193 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,195 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,197 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,199 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,205 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,208 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,211 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,214 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,226 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,227 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,227 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,228 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,232 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,233 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,234 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,235 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,237 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,238 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,239 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,239 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,240 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,241 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:27,676 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,676 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,677 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,678 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,882 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:27,919 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[150688,150701] [2024-11-08 17:05:27,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:05:27,943 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-08 17:05:27,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:05:27,987 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2024-11-08 17:05:27,987 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2024-11-08 17:05:28,031 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,052 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,055 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,055 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,083 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,088 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,089 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,089 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,090 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,090 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,091 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,097 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,100 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,102 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,102 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,111 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,115 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,116 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,116 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,117 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,118 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,118 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,122 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,123 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,124 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,125 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,125 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,125 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,125 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,206 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,209 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,212 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,213 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,257 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:05:28,270 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[150688,150701] [2024-11-08 17:05:28,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:05:28,283 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:05:28,299 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2024-11-08 17:05:28,300 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2024-11-08 17:05:28,368 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,369 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,369 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,370 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,371 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,378 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,378 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,379 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,380 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,381 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,382 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,382 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,383 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 17:05:28,483 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_a1093312-49d0-433f-8ed5-f2cc61a8ca42/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[150688,150701] [2024-11-08 17:05:28,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:05:28,797 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:05:28,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28 WrapperNode [2024-11-08 17:05:28,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:05:28,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:05:28,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:05:28,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:05:28,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:28,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:28,946 INFO L138 Inliner]: procedures = 687, calls = 1046, calls flagged for inlining = 53, calls inlined = 6, statements flattened = 150 [2024-11-08 17:05:28,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:05:28,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:05:28,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:05:28,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:05:28,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:28,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:28,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:29,017 INFO L175 MemorySlicer]: Split 35 memory accesses to 3 slices as follows [2, 5, 28]. 80 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 10 writes are split as follows [0, 0, 10]. [2024-11-08 17:05:29,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:29,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:29,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:29,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:29,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:29,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:29,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:05:29,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:05:29,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:05:29,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:05:29,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (1/1) ... [2024-11-08 17:05:29,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:05:29,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:29,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:05:29,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:05:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:05:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:05:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 17:05:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 17:05:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 17:05:29,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 17:05:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-08 17:05:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-08 17:05:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:05:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-08 17:05:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-08 17:05:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:05:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:05:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 17:05:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 17:05:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2024-11-08 17:05:29,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2024-11-08 17:05:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:05:29,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:05:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 17:05:29,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 17:05:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:05:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:05:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 17:05:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 17:05:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 17:05:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 17:05:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 17:05:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-08 17:05:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-08 17:05:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-08 17:05:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-08 17:05:29,535 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:05:29,538 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:05:30,146 INFO L? ?]: Removed 71 outVars from TransFormulas that were not future-live. [2024-11-08 17:05:30,147 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:05:30,162 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:05:30,162 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:05:30,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:05:30 BoogieIcfgContainer [2024-11-08 17:05:30,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:05:30,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:05:30,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:05:30,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:05:30,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:05:25" (1/3) ... [2024-11-08 17:05:30,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7522802f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:05:30, skipping insertion in model container [2024-11-08 17:05:30,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:05:28" (2/3) ... [2024-11-08 17:05:30,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7522802f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:05:30, skipping insertion in model container [2024-11-08 17:05:30,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:05:30" (3/3) ... [2024-11-08 17:05:30,176 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_back_harness.i [2024-11-08 17:05:30,195 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:05:30,195 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:05:30,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:05:30,286 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;@2a6c2c97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:05:30,288 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:05:30,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 67 states have internal predecessors, (85), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 17:05:30,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 17:05:30,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:30,309 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:30,310 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:30,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:30,317 INFO L85 PathProgramCache]: Analyzing trace with hash -2102279396, now seen corresponding path program 1 times [2024-11-08 17:05:30,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:30,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892037153] [2024-11-08 17:05:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:30,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:30,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:30,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:30,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:05:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:30,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 17:05:30,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-08 17:05:30,716 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:05:30,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:05:30,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892037153] [2024-11-08 17:05:30,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892037153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:05:30,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:05:30,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:05:30,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124152357] [2024-11-08 17:05:30,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:05:30,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:05:30,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:05:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:05:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:05:30,760 INFO L87 Difference]: Start difference. First operand has 103 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 67 states have internal predecessors, (85), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 17:05:30,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:30,797 INFO L93 Difference]: Finished difference Result 198 states and 290 transitions. [2024-11-08 17:05:30,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:05:30,799 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-11-08 17:05:30,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:30,808 INFO L225 Difference]: With dead ends: 198 [2024-11-08 17:05:30,808 INFO L226 Difference]: Without dead ends: 98 [2024-11-08 17:05:30,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:05:30,815 INFO L432 NwaCegarLoop]: 139 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, 139 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 [2024-11-08 17:05:30,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:05:30,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-08 17:05:30,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-08 17:05:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 63 states have internal predecessors, (79), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-08 17:05:30,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 134 transitions. [2024-11-08 17:05:30,926 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 134 transitions. Word has length 73 [2024-11-08 17:05:30,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:30,926 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 134 transitions. [2024-11-08 17:05:30,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 17:05:30,927 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 134 transitions. [2024-11-08 17:05:30,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 17:05:30,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:30,936 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:30,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:05:31,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:31,137 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:31,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:31,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1098219610, now seen corresponding path program 1 times [2024-11-08 17:05:31,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:31,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695089726] [2024-11-08 17:05:31,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:31,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:31,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:31,141 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:31,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:05:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:31,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:05:31,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:31,523 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-08 17:05:31,524 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:05:31,524 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:05:31,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695089726] [2024-11-08 17:05:31,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695089726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:05:31,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:05:31,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:05:31,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882785139] [2024-11-08 17:05:31,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:05:31,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:05:31,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:05:31,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:05:31,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:05:31,530 INFO L87 Difference]: Start difference. First operand 98 states and 134 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:05:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:31,674 INFO L93 Difference]: Finished difference Result 184 states and 254 transitions. [2024-11-08 17:05:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:05:31,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2024-11-08 17:05:31,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:31,678 INFO L225 Difference]: With dead ends: 184 [2024-11-08 17:05:31,679 INFO L226 Difference]: Without dead ends: 100 [2024-11-08 17:05:31,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:05:31,681 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:05:31,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 622 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:05:31,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-08 17:05:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-08 17:05:31,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 65 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-08 17:05:31,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2024-11-08 17:05:31,709 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 73 [2024-11-08 17:05:31,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:31,710 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2024-11-08 17:05:31,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:05:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2024-11-08 17:05:31,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 17:05:31,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:31,715 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:31,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:05:31,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:31,920 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:31,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:31,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1775232958, now seen corresponding path program 1 times [2024-11-08 17:05:31,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:31,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754105668] [2024-11-08 17:05:31,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:31,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:31,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:31,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:31,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:05:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:32,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:05:32,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:32,399 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:05:32,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:05:32,400 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:05:32,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754105668] [2024-11-08 17:05:32,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754105668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:05:32,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:05:32,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:05:32,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944861881] [2024-11-08 17:05:32,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:05:32,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:05:32,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:05:32,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:05:32,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:05:32,407 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:05:32,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:32,672 INFO L93 Difference]: Finished difference Result 191 states and 263 transitions. [2024-11-08 17:05:32,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:05:32,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2024-11-08 17:05:32,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:32,675 INFO L225 Difference]: With dead ends: 191 [2024-11-08 17:05:32,675 INFO L226 Difference]: Without dead ends: 102 [2024-11-08 17:05:32,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:05:32,677 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 28 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:05:32,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 663 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:05:32,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-08 17:05:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-11-08 17:05:32,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 63 states have (on average 1.253968253968254) internal successors, (79), 65 states have internal predecessors, (79), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-08 17:05:32,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2024-11-08 17:05:32,692 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 75 [2024-11-08 17:05:32,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:32,693 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2024-11-08 17:05:32,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:05:32,693 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2024-11-08 17:05:32,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:05:32,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:32,695 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:32,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 17:05:32,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:32,897 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:32,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:32,900 INFO L85 PathProgramCache]: Analyzing trace with hash -825487070, now seen corresponding path program 1 times [2024-11-08 17:05:32,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:32,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315404715] [2024-11-08 17:05:32,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:32,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:32,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:32,907 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:32,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:05:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:33,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 17:05:33,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:33,341 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:05:33,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:05:33,342 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:05:33,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315404715] [2024-11-08 17:05:33,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315404715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:05:33,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:05:33,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:05:33,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760589313] [2024-11-08 17:05:33,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:05:33,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:05:33,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:05:33,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:05:33,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:05:33,345 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:05:33,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:33,814 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2024-11-08 17:05:33,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:05:33,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2024-11-08 17:05:33,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:33,819 INFO L225 Difference]: With dead ends: 198 [2024-11-08 17:05:33,819 INFO L226 Difference]: Without dead ends: 108 [2024-11-08 17:05:33,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:05:33,823 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 40 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:05:33,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 752 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:05:33,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-08 17:05:33,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2024-11-08 17:05:33,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 67 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-08 17:05:33,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 138 transitions. [2024-11-08 17:05:33,850 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 138 transitions. Word has length 77 [2024-11-08 17:05:33,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:33,851 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 138 transitions. [2024-11-08 17:05:33,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 17:05:33,852 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 138 transitions. [2024-11-08 17:05:33,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 17:05:33,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:33,858 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:33,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:05:34,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:34,059 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:34,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:34,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1085595695, now seen corresponding path program 1 times [2024-11-08 17:05:34,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:34,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196181412] [2024-11-08 17:05:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:34,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:34,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:34,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:34,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:05:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:34,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:05:34,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:05:34,343 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:05:34,343 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:05:34,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196181412] [2024-11-08 17:05:34,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196181412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:05:34,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:05:34,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:05:34,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642143617] [2024-11-08 17:05:34,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:05:34,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:05:34,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:05:34,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:05:34,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:05:34,347 INFO L87 Difference]: Start difference. First operand 102 states and 138 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 17:05:34,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:34,398 INFO L93 Difference]: Finished difference Result 194 states and 268 transitions. [2024-11-08 17:05:34,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:05:34,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2024-11-08 17:05:34,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:34,401 INFO L225 Difference]: With dead ends: 194 [2024-11-08 17:05:34,402 INFO L226 Difference]: Without dead ends: 106 [2024-11-08 17:05:34,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:05:34,403 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 2 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:05:34,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 252 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:05:34,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-08 17:05:34,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2024-11-08 17:05:34,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 68 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-08 17:05:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 139 transitions. [2024-11-08 17:05:34,420 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 139 transitions. Word has length 79 [2024-11-08 17:05:34,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:34,421 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 139 transitions. [2024-11-08 17:05:34,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 17:05:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 139 transitions. [2024-11-08 17:05:34,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 17:05:34,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:34,423 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:34,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:05:34,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:34,628 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:34,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:34,629 INFO L85 PathProgramCache]: Analyzing trace with hash -683726129, now seen corresponding path program 1 times [2024-11-08 17:05:34,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:34,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715616702] [2024-11-08 17:05:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:34,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:34,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:34,632 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:34,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:05:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:34,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 17:05:34,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:34,988 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-08 17:05:34,989 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:05:34,989 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:05:34,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715616702] [2024-11-08 17:05:34,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715616702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:05:34,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:05:34,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:05:34,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547407584] [2024-11-08 17:05:34,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:05:34,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:05:34,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:05:34,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:05:34,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:05:34,993 INFO L87 Difference]: Start difference. First operand 103 states and 139 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 17:05:35,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:35,101 INFO L93 Difference]: Finished difference Result 195 states and 265 transitions. [2024-11-08 17:05:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:05:35,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 87 [2024-11-08 17:05:35,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:35,104 INFO L225 Difference]: With dead ends: 195 [2024-11-08 17:05:35,104 INFO L226 Difference]: Without dead ends: 106 [2024-11-08 17:05:35,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:05:35,105 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:05:35,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 736 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:05:35,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-08 17:05:35,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-11-08 17:05:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 69 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-08 17:05:35,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 140 transitions. [2024-11-08 17:05:35,128 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 140 transitions. Word has length 87 [2024-11-08 17:05:35,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:35,130 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 140 transitions. [2024-11-08 17:05:35,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 17:05:35,130 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 140 transitions. [2024-11-08 17:05:35,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 17:05:35,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:35,132 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:35,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 17:05:35,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:35,333 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:35,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:35,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1653156877, now seen corresponding path program 1 times [2024-11-08 17:05:35,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:35,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [776093710] [2024-11-08 17:05:35,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:35,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:35,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:35,336 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:35,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 17:05:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:35,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 17:05:35,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:35,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-11-08 17:05:35,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-11-08 17:05:40,271 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$#2.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|) (_ bv0 64)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$#2.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|))))) is different from true [2024-11-08 17:05:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:05:40,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:05:41,270 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-08 17:05:41,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:05:41,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776093710] [2024-11-08 17:05:41,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776093710] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:05:41,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:05:41,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2024-11-08 17:05:41,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147003667] [2024-11-08 17:05:41,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:05:41,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 17:05:41,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:05:41,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 17:05:41,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=199, Unknown=1, NotChecked=28, Total=272 [2024-11-08 17:05:41,273 INFO L87 Difference]: Start difference. First operand 104 states and 140 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 5 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-08 17:05:44,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:44,435 INFO L93 Difference]: Finished difference Result 242 states and 339 transitions. [2024-11-08 17:05:44,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:05:44,436 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 5 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 89 [2024-11-08 17:05:44,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:44,439 INFO L225 Difference]: With dead ends: 242 [2024-11-08 17:05:44,439 INFO L226 Difference]: Without dead ends: 152 [2024-11-08 17:05:44,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=76, Invalid=347, Unknown=1, NotChecked=38, Total=462 [2024-11-08 17:05:44,441 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 57 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 11 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 323 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:05:44,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1219 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 448 Invalid, 7 Unknown, 323 Unchecked, 2.7s Time] [2024-11-08 17:05:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-08 17:05:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 123. [2024-11-08 17:05:44,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 84 states have (on average 1.25) internal successors, (105), 86 states have internal predecessors, (105), 29 states have call successors, (29), 8 states have call predecessors, (29), 9 states have return successors, (31), 28 states have call predecessors, (31), 28 states have call successors, (31) [2024-11-08 17:05:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 165 transitions. [2024-11-08 17:05:44,468 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 165 transitions. Word has length 89 [2024-11-08 17:05:44,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:44,469 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 165 transitions. [2024-11-08 17:05:44,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 5 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-08 17:05:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 165 transitions. [2024-11-08 17:05:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 17:05:44,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:44,470 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:44,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 17:05:44,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:44,671 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:44,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:44,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2145783051, now seen corresponding path program 1 times [2024-11-08 17:05:44,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:44,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371190867] [2024-11-08 17:05:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:44,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:44,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:44,673 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:44,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 17:05:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:44,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:05:44,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 17:05:44,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:05:44,942 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:05:44,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371190867] [2024-11-08 17:05:44,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371190867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:05:44,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:05:44,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:05:44,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515727816] [2024-11-08 17:05:44,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:05:44,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:05:44,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:05:44,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:05:44,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:05:44,945 INFO L87 Difference]: Start difference. First operand 123 states and 165 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 17:05:45,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:45,005 INFO L93 Difference]: Finished difference Result 233 states and 318 transitions. [2024-11-08 17:05:45,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:05:45,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2024-11-08 17:05:45,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:45,008 INFO L225 Difference]: With dead ends: 233 [2024-11-08 17:05:45,009 INFO L226 Difference]: Without dead ends: 124 [2024-11-08 17:05:45,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:05:45,011 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:05:45,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 384 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:05:45,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-08 17:05:45,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2024-11-08 17:05:45,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 84 states have (on average 1.2380952380952381) internal successors, (104), 86 states have internal predecessors, (104), 29 states have call successors, (29), 8 states have call predecessors, (29), 9 states have return successors, (31), 28 states have call predecessors, (31), 28 states have call successors, (31) [2024-11-08 17:05:45,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2024-11-08 17:05:45,034 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 164 transitions. Word has length 89 [2024-11-08 17:05:45,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:45,035 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 164 transitions. [2024-11-08 17:05:45,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 17:05:45,036 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2024-11-08 17:05:45,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 17:05:45,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:45,037 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:45,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 17:05:45,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:45,238 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:45,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:45,238 INFO L85 PathProgramCache]: Analyzing trace with hash 933030519, now seen corresponding path program 1 times [2024-11-08 17:05:45,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:45,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885400185] [2024-11-08 17:05:45,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:45,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:45,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:45,240 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:45,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 17:05:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:45,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:05:45,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:45,486 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 17:05:45,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:05:45,486 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:05:45,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885400185] [2024-11-08 17:05:45,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885400185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:05:45,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:05:45,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:05:45,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472113135] [2024-11-08 17:05:45,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:05:45,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:05:45,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:05:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:05:45,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:05:45,489 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 17:05:45,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:45,536 INFO L93 Difference]: Finished difference Result 231 states and 316 transitions. [2024-11-08 17:05:45,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:05:45,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2024-11-08 17:05:45,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:45,538 INFO L225 Difference]: With dead ends: 231 [2024-11-08 17:05:45,538 INFO L226 Difference]: Without dead ends: 122 [2024-11-08 17:05:45,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:05:45,539 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:05:45,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:05:45,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-08 17:05:45,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 119. [2024-11-08 17:05:45,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 80 states have (on average 1.225) internal successors, (98), 82 states have internal predecessors, (98), 29 states have call successors, (29), 8 states have call predecessors, (29), 9 states have return successors, (31), 28 states have call predecessors, (31), 28 states have call successors, (31) [2024-11-08 17:05:45,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 158 transitions. [2024-11-08 17:05:45,553 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 158 transitions. Word has length 89 [2024-11-08 17:05:45,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:45,554 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 158 transitions. [2024-11-08 17:05:45,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 17:05:45,554 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 158 transitions. [2024-11-08 17:05:45,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 17:05:45,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:45,555 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:05:45,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 17:05:45,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:45,756 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:45,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:45,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1907330462, now seen corresponding path program 1 times [2024-11-08 17:05:45,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:05:45,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584671783] [2024-11-08 17:05:45,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:45,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:45,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:45,758 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:45,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 17:05:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:45,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-08 17:05:46,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:46,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-08 17:05:46,373 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-08 17:05:46,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2024-11-08 17:05:49,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 126 [2024-11-08 17:05:49,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:49,186 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-08 17:05:49,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 81 [2024-11-08 17:05:49,247 INFO L349 Elim1Store]: treesize reduction 114, result has 7.3 percent of original size [2024-11-08 17:05:49,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 154 treesize of output 119 [2024-11-08 17:05:49,307 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2024-11-08 17:05:49,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 37 [2024-11-08 17:05:49,351 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:05:49,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2024-11-08 17:05:49,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-11-08 17:05:49,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-08 17:05:51,215 INFO L349 Elim1Store]: treesize reduction 93, result has 17.7 percent of original size [2024-11-08 17:05:51,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 259 treesize of output 148 [2024-11-08 17:05:51,505 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 17:05:51,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:05:52,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:05:52,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 108 [2024-11-08 17:05:53,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:05:53,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 344 treesize of output 342 [2024-11-08 17:05:53,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 331 treesize of output 323 [2024-11-08 17:05:53,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 17:05:53,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 180 [2024-11-08 17:05:56,965 INFO L349 Elim1Store]: treesize reduction 34, result has 58.5 percent of original size [2024-11-08 17:05:56,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 15654 treesize of output 12882 [2024-11-08 17:05:57,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:05:57,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1006 treesize of output 1000 [2024-11-08 17:05:57,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1258 treesize of output 1194 [2024-11-08 17:05:59,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2024-11-08 17:06:00,315 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:00,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-11-08 17:06:00,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2024-11-08 17:06:00,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2024-11-08 17:06:00,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:06:00,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 237 treesize of output 221 [2024-11-08 17:06:00,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:06:00,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2024-11-08 17:06:00,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 17:06:00,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:06:00,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2024-11-08 17:06:00,970 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:06:00,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2024-11-08 17:06:01,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 17:06:01,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4818 treesize of output 4530 [2024-11-08 17:06:01,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:06:01,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2024-11-08 17:06:01,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 17:06:01,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:06:01,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4874 treesize of output 4586 [2024-11-08 17:06:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 17:06:01,889 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:06:01,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584671783] [2024-11-08 17:06:01,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584671783] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 17:06:01,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:06:01,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [19] total 32 [2024-11-08 17:06:01,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423672881] [2024-11-08 17:06:01,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:06:01,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:06:01,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:06:01,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:06:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=908, Unknown=0, NotChecked=0, Total=992 [2024-11-08 17:06:01,894 INFO L87 Difference]: Start difference. First operand 119 states and 158 transitions. Second operand has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:06:24,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 17:06:28,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 17:06:33,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 17:06:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:06:36,180 INFO L93 Difference]: Finished difference Result 154 states and 214 transitions. [2024-11-08 17:06:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:06:36,180 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2024-11-08 17:06:36,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:06:36,182 INFO L225 Difference]: With dead ends: 154 [2024-11-08 17:06:36,182 INFO L226 Difference]: Without dead ends: 152 [2024-11-08 17:06:36,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 139 SyntacticMatches, 11 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 17:06:36,184 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 25 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:06:36,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1349 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 32.0s Time] [2024-11-08 17:06:36,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-08 17:06:36,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 143. [2024-11-08 17:06:36,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 93 states have (on average 1.2150537634408602) internal successors, (113), 97 states have internal predecessors, (113), 38 states have call successors, (38), 10 states have call predecessors, (38), 11 states have return successors, (46), 35 states have call predecessors, (46), 37 states have call successors, (46) [2024-11-08 17:06:36,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 197 transitions. [2024-11-08 17:06:36,202 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 197 transitions. Word has length 91 [2024-11-08 17:06:36,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:06:36,203 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 197 transitions. [2024-11-08 17:06:36,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:06:36,203 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 197 transitions. [2024-11-08 17:06:36,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 17:06:36,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:06:36,205 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:06:36,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 17:06:36,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:06:36,405 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:06:36,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:06:36,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1578290208, now seen corresponding path program 1 times [2024-11-08 17:06:36,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:06:36,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1670694141] [2024-11-08 17:06:36,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:36,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:06:36,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:06:36,409 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:06:36,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 17:06:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:36,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 17:06:36,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:06:44,766 WARN L286 SmtUtils]: Spent 7.81s on a formula simplification. DAG size of input: 134 DAG size of output: 34 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-08 17:06:44,767 INFO L349 Elim1Store]: treesize reduction 528, result has 11.4 percent of original size [2024-11-08 17:06:44,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 516 treesize of output 843 [2024-11-08 17:06:44,929 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:44,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:44,976 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:44,977 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:44,977 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:44,995 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:44,997 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:45,392 INFO L349 Elim1Store]: treesize reduction 242, result has 2.8 percent of original size [2024-11-08 17:06:45,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 14 case distinctions, treesize of input 7343 treesize of output 7856 [2024-11-08 17:06:45,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1244 treesize of output 1084 [2024-11-08 17:06:45,816 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,070 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,224 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,351 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,390 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,610 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,698 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,698 INFO L224 Elim1Store]: Index analysis took 1085 ms [2024-11-08 17:06:46,699 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,700 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,702 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:46,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 493 [2024-11-08 17:06:47,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 407 treesize of output 333 [2024-11-08 17:06:47,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1944 treesize of output 1618 [2024-11-08 17:06:47,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:47,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:47,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:47,912 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:47,919 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:48,007 INFO L224 Elim1Store]: Index analysis took 108 ms [2024-11-08 17:06:48,470 INFO L349 Elim1Store]: treesize reduction 402, result has 1.7 percent of original size [2024-11-08 17:06:48,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 22 case distinctions, treesize of input 2313 treesize of output 2836 [2024-11-08 17:06:51,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 396 treesize of output 320 [2024-11-08 17:06:52,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1747 treesize of output 1543 [2024-11-08 17:06:52,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 1 [2024-11-08 17:06:55,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:55,684 INFO L349 Elim1Store]: treesize reduction 57, result has 5.0 percent of original size [2024-11-08 17:06:55,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 573 treesize of output 553 [2024-11-08 17:06:55,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:55,706 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:55,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 105 [2024-11-08 17:06:55,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 259 treesize of output 207 [2024-11-08 17:06:55,767 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:06:55,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 107 [2024-11-08 17:06:55,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1694 treesize of output 1496 [2024-11-08 17:06:55,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:55,924 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:55,931 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:06:55,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:55,968 INFO L349 Elim1Store]: treesize reduction 371, result has 0.3 percent of original size [2024-11-08 17:06:55,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 17 case distinctions, treesize of input 1440 treesize of output 1707 [2024-11-08 17:06:56,121 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-08 17:06:56,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 58 [2024-11-08 17:06:56,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 53 [2024-11-08 17:06:56,369 INFO L349 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2024-11-08 17:06:56,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 137 [2024-11-08 17:06:56,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:56,438 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-08 17:06:56,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 77 [2024-11-08 17:06:56,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-08 17:06:56,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 45 [2024-11-08 17:06:56,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 76 [2024-11-08 17:06:56,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-08 17:06:56,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2024-11-08 17:06:56,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:56,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 17:06:56,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:56,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:56,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:56,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:56,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2024-11-08 17:06:56,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:56,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 17:06:56,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:56,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2024-11-08 17:06:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-08 17:06:57,518 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:06:57,518 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:06:57,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670694141] [2024-11-08 17:06:57,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670694141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:06:57,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:06:57,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 17:06:57,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259172135] [2024-11-08 17:06:57,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:06:57,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:06:57,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:06:57,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:06:57,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:06:57,520 INFO L87 Difference]: Start difference. First operand 143 states and 197 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:07:01,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:07:05,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:07:09,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:07:15,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:15,519 INFO L93 Difference]: Finished difference Result 298 states and 400 transitions. [2024-11-08 17:07:15,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:07:15,520 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2024-11-08 17:07:15,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:15,522 INFO L225 Difference]: With dead ends: 298 [2024-11-08 17:07:15,523 INFO L226 Difference]: Without dead ends: 197 [2024-11-08 17:07:15,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-11-08 17:07:15,524 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 103 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:15,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1083 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 443 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2024-11-08 17:07:15,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-08 17:07:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 191. [2024-11-08 17:07:15,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 135 states have (on average 1.2222222222222223) internal successors, (165), 139 states have internal predecessors, (165), 40 states have call successors, (40), 14 states have call predecessors, (40), 15 states have return successors, (47), 37 states have call predecessors, (47), 39 states have call successors, (47) [2024-11-08 17:07:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 252 transitions. [2024-11-08 17:07:15,551 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 252 transitions. Word has length 91 [2024-11-08 17:07:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:15,552 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 252 transitions. [2024-11-08 17:07:15,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 17:07:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 252 transitions. [2024-11-08 17:07:15,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:07:15,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:15,554 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:07:15,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 17:07:15,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:07:15,755 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:15,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:15,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1481660825, now seen corresponding path program 1 times [2024-11-08 17:07:15,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:07:15,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069539398] [2024-11-08 17:07:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:15,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:07:15,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:07:15,757 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:07:15,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 17:07:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:16,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-08 17:07:16,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:07:16,444 INFO L349 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2024-11-08 17:07:16,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2024-11-08 17:07:16,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-08 17:07:16,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-08 17:07:16,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 14 [2024-11-08 17:07:16,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 39 [2024-11-08 17:07:16,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 17:07:16,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2024-11-08 17:07:16,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 32 [2024-11-08 17:07:25,488 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:07:25,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:07:26,617 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:07:26,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069539398] [2024-11-08 17:07:26,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069539398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:07:26,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2008400310] [2024-11-08 17:07:26,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:26,618 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 17:07:26,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 [2024-11-08 17:07:26,619 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 17:07:26,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-08 17:07:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:27,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-08 17:07:27,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:07:28,101 INFO L349 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2024-11-08 17:07:28,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 19 [2024-11-08 17:07:28,159 INFO L349 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2024-11-08 17:07:28,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2024-11-08 17:07:28,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2024-11-08 17:07:28,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 44 [2024-11-08 17:07:28,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-11-08 17:07:28,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 22 [2024-11-08 17:07:28,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 17:07:28,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-08 17:07:28,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 23 [2024-11-08 17:07:28,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-08 17:07:32,818 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_12| (_ BitVec 64)) (|#StackHeapBarrier| (_ BitVec 64))) (and (bvult |#StackHeapBarrier| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_12|) (bvult (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_12|) (_ bv24 64)) |#StackHeapBarrier|))) is different from true [2024-11-08 17:08:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:08:09,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:08:15,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2008400310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:08:15,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:08:15,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 36 [2024-11-08 17:08:15,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294509324] [2024-11-08 17:08:15,017 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:08:15,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-08 17:08:15,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:08:15,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-08 17:08:15,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1211, Unknown=8, NotChecked=70, Total=1406 [2024-11-08 17:08:15,020 INFO L87 Difference]: Start difference. First operand 191 states and 252 transitions. Second operand has 36 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 31 states have internal predecessors, (95), 7 states have call successors, (16), 6 states have call predecessors, (16), 7 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-08 17:08:24,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:08:29,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:08:36,289 WARN L873 $PredicateComparison]: unable to prove that (and (not (= (_ bv0 64) (bvadd (_ bv1 64) |c_#StackHeapBarrier|))) (exists ((|v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_12| (_ BitVec 64)) (|#StackHeapBarrier| (_ BitVec 64))) (and (bvult |#StackHeapBarrier| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_12|) (bvult (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_push_back_~list#1.base_BEFORE_CALL_12|) (_ bv24 64)) |#StackHeapBarrier|)))) is different from true [2024-11-08 17:08:41,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:08:49,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:08:55,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:08:59,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:09:36,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:09:44,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:09:48,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:10:12,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:10:25,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:10:28,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:10:32,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:10:42,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:10:42,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:42,504 INFO L93 Difference]: Finished difference Result 451 states and 579 transitions. [2024-11-08 17:10:42,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-08 17:10:42,505 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 31 states have internal predecessors, (95), 7 states have call successors, (16), 6 states have call predecessors, (16), 7 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 93 [2024-11-08 17:10:42,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:42,508 INFO L225 Difference]: With dead ends: 451 [2024-11-08 17:10:42,508 INFO L226 Difference]: Without dead ends: 326 [2024-11-08 17:10:42,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1364 ImplicationChecksByTransitivity, 116.0s TimeCoverageRelationStatistics Valid=428, Invalid=4255, Unknown=17, NotChecked=270, Total=4970 [2024-11-08 17:10:42,512 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 230 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 1642 mSolverCounterSat, 55 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 2072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1642 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 364 IncrementalHoareTripleChecker+Unchecked, 83.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:42,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 2831 Invalid, 2072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1642 Invalid, 11 Unknown, 364 Unchecked, 83.6s Time] [2024-11-08 17:10:42,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-08 17:10:42,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 298. [2024-11-08 17:10:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 223 states have (on average 1.2152466367713004) internal successors, (271), 228 states have internal predecessors, (271), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (58), 46 states have call predecessors, (58), 50 states have call successors, (58) [2024-11-08 17:10:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 380 transitions. [2024-11-08 17:10:42,569 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 380 transitions. Word has length 93 [2024-11-08 17:10:42,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:42,569 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 380 transitions. [2024-11-08 17:10:42,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 31 states have internal predecessors, (95), 7 states have call successors, (16), 6 states have call predecessors, (16), 7 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-08 17:10:42,570 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 380 transitions. [2024-11-08 17:10:42,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 17:10:42,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:42,572 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:10:42,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 17:10:42,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:42,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt [2024-11-08 17:10:42,976 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:42,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:42,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1185263198, now seen corresponding path program 1 times [2024-11-08 17:10:42,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:42,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634800117] [2024-11-08 17:10:42,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:42,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:42,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:10:42,979 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:10:42,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 17:10:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:43,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 17:10:43,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 17:10:43,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:43,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:43,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634800117] [2024-11-08 17:10:43,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634800117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:43,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:43,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:10:43,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909860237] [2024-11-08 17:10:43,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:43,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:10:43,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:43,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:10:43,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:10:43,481 INFO L87 Difference]: Start difference. First operand 298 states and 380 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 17:10:44,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:44,931 INFO L93 Difference]: Finished difference Result 432 states and 562 transitions. [2024-11-08 17:10:44,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:10:44,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 91 [2024-11-08 17:10:44,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:44,934 INFO L225 Difference]: With dead ends: 432 [2024-11-08 17:10:44,934 INFO L226 Difference]: Without dead ends: 301 [2024-11-08 17:10:44,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:10:44,937 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 22 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:44,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 694 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 17:10:44,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-08 17:10:44,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 295. [2024-11-08 17:10:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 221 states have (on average 1.2081447963800904) internal successors, (267), 225 states have internal predecessors, (267), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (54), 46 states have call predecessors, (54), 50 states have call successors, (54) [2024-11-08 17:10:44,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 372 transitions. [2024-11-08 17:10:44,989 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 372 transitions. Word has length 91 [2024-11-08 17:10:44,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:44,990 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 372 transitions. [2024-11-08 17:10:44,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 17:10:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 372 transitions. [2024-11-08 17:10:44,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:10:44,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:44,992 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:10:45,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 17:10:45,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:45,192 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:45,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:45,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1792218226, now seen corresponding path program 1 times [2024-11-08 17:10:45,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:45,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [113094770] [2024-11-08 17:10:45,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:45,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:45,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:10:45,196 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:10:45,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 17:10:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:45,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 17:10:45,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:45,978 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 17:10:45,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:45,978 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:45,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113094770] [2024-11-08 17:10:45,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113094770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:45,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:45,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:10:45,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623195863] [2024-11-08 17:10:45,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:45,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:10:45,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:10:45,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:10:45,980 INFO L87 Difference]: Start difference. First operand 295 states and 372 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 17:10:49,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:49,031 INFO L93 Difference]: Finished difference Result 554 states and 717 transitions. [2024-11-08 17:10:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:10:49,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-08 17:10:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:49,035 INFO L225 Difference]: With dead ends: 554 [2024-11-08 17:10:49,035 INFO L226 Difference]: Without dead ends: 392 [2024-11-08 17:10:49,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:10:49,037 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 16 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:49,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 773 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 17:10:49,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-08 17:10:49,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 319. [2024-11-08 17:10:49,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 241 states have (on average 1.2074688796680497) internal successors, (291), 247 states have internal predecessors, (291), 51 states have call successors, (51), 23 states have call predecessors, (51), 26 states have return successors, (60), 48 states have call predecessors, (60), 50 states have call successors, (60) [2024-11-08 17:10:49,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 402 transitions. [2024-11-08 17:10:49,091 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 402 transitions. Word has length 105 [2024-11-08 17:10:49,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:49,091 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 402 transitions. [2024-11-08 17:10:49,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 17:10:49,092 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 402 transitions. [2024-11-08 17:10:49,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:10:49,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:49,094 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:10:49,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:49,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:49,294 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:49,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:49,295 INFO L85 PathProgramCache]: Analyzing trace with hash -405432816, now seen corresponding path program 1 times [2024-11-08 17:10:49,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:49,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033875420] [2024-11-08 17:10:49,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:49,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:49,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:10:49,298 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:10:49,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 17:10:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:49,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:10:49,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-08 17:10:49,658 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:49,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:49,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033875420] [2024-11-08 17:10:49,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033875420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:49,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:49,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:10:49,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867528242] [2024-11-08 17:10:49,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:49,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:10:49,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:49,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:10:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:10:49,661 INFO L87 Difference]: Start difference. First operand 319 states and 402 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 17:10:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:49,766 INFO L93 Difference]: Finished difference Result 575 states and 732 transitions. [2024-11-08 17:10:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:10:49,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-08 17:10:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:49,769 INFO L225 Difference]: With dead ends: 575 [2024-11-08 17:10:49,769 INFO L226 Difference]: Without dead ends: 324 [2024-11-08 17:10:49,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:10:49,771 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:49,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 533 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:10:49,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-08 17:10:49,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 323. [2024-11-08 17:10:49,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 244 states have (on average 1.1680327868852458) internal successors, (285), 250 states have internal predecessors, (285), 51 states have call successors, (51), 23 states have call predecessors, (51), 27 states have return successors, (64), 49 states have call predecessors, (64), 50 states have call successors, (64) [2024-11-08 17:10:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 400 transitions. [2024-11-08 17:10:49,831 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 400 transitions. Word has length 105 [2024-11-08 17:10:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:49,832 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 400 transitions. [2024-11-08 17:10:49,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 17:10:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 400 transitions. [2024-11-08 17:10:49,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:10:49,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:49,834 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-08 17:10:49,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:50,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:50,038 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:50,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:50,038 INFO L85 PathProgramCache]: Analyzing trace with hash -531300976, now seen corresponding path program 1 times [2024-11-08 17:10:50,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:50,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339118205] [2024-11-08 17:10:50,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:50,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:50,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:10:50,041 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:10:50,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 17:10:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:50,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:10:50,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-08 17:10:50,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:50,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:50,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339118205] [2024-11-08 17:10:50,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339118205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:50,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:50,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:10:50,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313103351] [2024-11-08 17:10:50,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:50,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:10:50,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:50,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:10:50,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:10:50,414 INFO L87 Difference]: Start difference. First operand 323 states and 400 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 17:10:50,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:50,498 INFO L93 Difference]: Finished difference Result 549 states and 693 transitions. [2024-11-08 17:10:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:10:50,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-08 17:10:50,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:50,508 INFO L225 Difference]: With dead ends: 549 [2024-11-08 17:10:50,508 INFO L226 Difference]: Without dead ends: 297 [2024-11-08 17:10:50,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:10:50,510 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:50,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 384 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:10:50,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-08 17:10:50,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 289. [2024-11-08 17:10:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 216 states have (on average 1.1342592592592593) internal successors, (245), 221 states have internal predecessors, (245), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (55), 45 states have call predecessors, (55), 49 states have call successors, (55) [2024-11-08 17:10:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 350 transitions. [2024-11-08 17:10:50,563 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 350 transitions. Word has length 105 [2024-11-08 17:10:50,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:50,563 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 350 transitions. [2024-11-08 17:10:50,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 17:10:50,564 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 350 transitions. [2024-11-08 17:10:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 17:10:50,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:50,566 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:50,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-08 17:10:50,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:50,769 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:50,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:50,770 INFO L85 PathProgramCache]: Analyzing trace with hash -325930953, now seen corresponding path program 1 times [2024-11-08 17:10:50,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:50,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158111393] [2024-11-08 17:10:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:50,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:50,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:10:50,772 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:10:50,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-08 17:10:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:51,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-08 17:10:51,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:51,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-08 17:10:51,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-08 17:10:51,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-08 17:10:55,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:10:55,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 365 treesize of output 329 [2024-11-08 17:10:55,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:10:55,657 INFO L349 Elim1Store]: treesize reduction 48, result has 18.6 percent of original size [2024-11-08 17:10:55,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 181 treesize of output 78 [2024-11-08 17:10:55,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:10:55,935 INFO L349 Elim1Store]: treesize reduction 149, result has 5.7 percent of original size [2024-11-08 17:10:55,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 204 treesize of output 194 [2024-11-08 17:10:55,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 174 [2024-11-08 17:10:55,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 116 [2024-11-08 17:10:56,026 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:10:56,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:10:56,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:10:56,035 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:10:56,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 58 [2024-11-08 17:10:56,261 INFO L349 Elim1Store]: treesize reduction 102, result has 10.5 percent of original size [2024-11-08 17:10:56,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 124 treesize of output 100 [2024-11-08 17:10:56,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2024-11-08 17:10:56,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 32 [2024-11-08 17:10:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:10:59,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:11:16,734 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:11:16,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158111393] [2024-11-08 17:11:16,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158111393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:11:16,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1054373136] [2024-11-08 17:11:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:16,734 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 17:11:16,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 [2024-11-08 17:11:16,736 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 17:11:16,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-08 17:11:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:18,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-08 17:11:18,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:11:18,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-08 17:11:18,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-08 17:11:18,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-08 17:11:23,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:11:23,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 361 treesize of output 325 [2024-11-08 17:11:23,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:11:23,728 INFO L349 Elim1Store]: treesize reduction 40, result has 14.9 percent of original size [2024-11-08 17:11:23,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 167 treesize of output 202 [2024-11-08 17:11:23,769 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:11:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:11:23,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 79 [2024-11-08 17:11:23,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:11:23,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 118 [2024-11-08 17:11:23,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:11:23,929 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:11:23,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 43 [2024-11-08 17:11:23,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2024-11-08 17:11:24,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-08 17:11:24,050 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:11:24,052 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 17:11:24,052 WARN L200 Elim1Store]: Array PQE input equivalent to false [2024-11-08 17:11:24,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:11:24,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:11:24,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 46 [2024-11-08 17:11:24,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 29 [2024-11-08 17:11:33,764 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 19 proven. 16 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 17:11:33,765 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:11:51,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-08 17:11:51,527 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-08 17:11:51,529 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-08 17:11:51,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-08 17:11:51,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-08 17:11:51,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt [2024-11-08 17:11:51,930 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:553) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:324) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 46 more [2024-11-08 17:11:51,933 INFO L158 Benchmark]: Toolchain (without parser) took 386335.11ms. Allocated memory was 71.3MB in the beginning and 192.9MB in the end (delta: 121.6MB). Free memory was 40.2MB in the beginning and 111.7MB in the end (delta: -71.5MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-11-08 17:11:51,934 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 86.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:11:51,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3197.85ms. Allocated memory was 71.3MB in the beginning and 117.4MB in the end (delta: 46.1MB). Free memory was 40.0MB in the beginning and 62.8MB in the end (delta: -22.8MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2024-11-08 17:11:51,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.68ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 57.1MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 17:11:51,934 INFO L158 Benchmark]: Boogie Preprocessor took 136.73ms. Allocated memory is still 117.4MB. Free memory was 57.1MB in the beginning and 51.4MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 17:11:51,934 INFO L158 Benchmark]: RCFGBuilder took 1079.28ms. Allocated memory is still 117.4MB. Free memory was 50.8MB in the beginning and 38.0MB in the end (delta: 12.8MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-08 17:11:51,934 INFO L158 Benchmark]: TraceAbstraction took 381766.16ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 37.3MB in the beginning and 111.7MB in the end (delta: -74.4MB). Peak memory consumption was 331.3kB. Max. memory is 16.1GB. [2024-11-08 17:11:51,937 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 86.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3197.85ms. Allocated memory was 71.3MB in the beginning and 117.4MB in the end (delta: 46.1MB). Free memory was 40.0MB in the beginning and 62.8MB in the end (delta: -22.8MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 147.68ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 57.1MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 136.73ms. Allocated memory is still 117.4MB. Free memory was 57.1MB in the beginning and 51.4MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1079.28ms. Allocated memory is still 117.4MB. Free memory was 50.8MB in the beginning and 38.0MB in the end (delta: 12.8MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * TraceAbstraction took 381766.16ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 37.3MB in the beginning and 111.7MB in the end (delta: -74.4MB). Peak memory consumption was 331.3kB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1093312-49d0-433f-8ed5-f2cc61a8ca42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")