./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:08:16,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:08:16,960 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 23:08:16,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:08:16,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:08:17,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:08:17,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:08:17,032 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:08:17,032 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:08:17,032 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:08:17,033 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:08:17,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:08:17,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:08:17,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:08:17,034 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:08:17,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:08:17,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:08:17,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:08:17,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:08:17,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:08:17,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:08:17,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:08:17,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:08:17,035 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:08:17,036 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:08:17,036 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:08:17,036 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:08:17,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:08:17,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:08:17,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:08:17,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:08:17,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:08:17,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:08:17,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:08:17,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:08:17,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:08:17,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:08:17,038 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:08:17,038 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:08:17,038 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:08:17,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:08:17,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:08:17,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:08:17,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:08:17,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:08:17,039 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b [2024-11-23 23:08:17,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:08:17,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:08:17,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:08:17,399 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:08:17,399 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:08:17,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2024-11-23 23:08:21,016 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/data/f71e18e84/e9171973199547bf97ffc731bc37ee0b/FLAG9f2ec27e7 [2024-11-23 23:08:21,742 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:08:21,742 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2024-11-23 23:08:21,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/data/f71e18e84/e9171973199547bf97ffc731bc37ee0b/FLAG9f2ec27e7 [2024-11-23 23:08:21,819 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/data/f71e18e84/e9171973199547bf97ffc731bc37ee0b [2024-11-23 23:08:21,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:08:21,824 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:08:21,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:08:21,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:08:21,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:08:21,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:08:21" (1/1) ... [2024-11-23 23:08:21,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199a924d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:21, skipping insertion in model container [2024-11-23 23:08:21,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:08:21" (1/1) ... [2024-11-23 23:08:21,969 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:08:22,358 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_13e98b84-b51f-4919-b19a-5eb42432ed63/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2024-11-23 23:08:22,368 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_13e98b84-b51f-4919-b19a-5eb42432ed63/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2024-11-23 23:08:23,571 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,572 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,573 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,578 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,580 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,601 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,602 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,604 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,605 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,607 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,608 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,609 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:23,609 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,378 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,378 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,387 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,388 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,396 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,396 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,403 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,413 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,510 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,511 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:08:24,550 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:08:24,567 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_13e98b84-b51f-4919-b19a-5eb42432ed63/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2024-11-23 23:08:24,568 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_13e98b84-b51f-4919-b19a-5eb42432ed63/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2024-11-23 23:08:24,691 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,692 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,692 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,692 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,693 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,705 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,706 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,707 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,708 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,709 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,710 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,711 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,711 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,813 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,813 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,815 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,816 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,818 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,818 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,819 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,826 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2024-11-23 23:08:24,856 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,857 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:08:24,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:08:25,116 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:08:25,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25 WrapperNode [2024-11-23 23:08:25,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:08:25,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:08:25,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:08:25,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:08:25,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,319 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2024-11-23 23:08:25,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:08:25,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:08:25,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:08:25,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:08:25,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,364 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,494 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 6, 3, 73, 9]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 1, 10, 5]. The 243 writes are split as follows [232, 0, 2, 1, 6, 2]. [2024-11-23 23:08:25,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,574 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:08:25,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:08:25,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:08:25,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:08:25,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (1/1) ... [2024-11-23 23:08:25,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:08:25,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:08:25,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:08:25,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:08:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-11-23 23:08:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-11-23 23:08:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:08:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-23 23:08:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-23 23:08:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-23 23:08:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-23 23:08:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-23 23:08:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-23 23:08:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 23:08:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 23:08:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 23:08:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 23:08:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 23:08:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 23:08:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:08:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:08:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:08:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:08:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:08:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:08:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-23 23:08:25,737 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-23 23:08:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 23:08:25,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 23:08:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:08:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:08:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2024-11-23 23:08:25,738 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2024-11-23 23:08:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:08:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:08:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:08:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 23:08:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 23:08:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 23:08:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:08:25,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:08:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-23 23:08:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-23 23:08:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-23 23:08:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-23 23:08:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-23 23:08:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-23 23:08:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-23 23:08:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-23 23:08:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 23:08:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 23:08:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 23:08:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 23:08:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 23:08:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 23:08:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-23 23:08:25,741 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-23 23:08:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:08:25,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:08:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-23 23:08:25,742 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-23 23:08:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:08:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:08:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:08:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:08:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:08:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:08:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:08:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 23:08:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 23:08:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 23:08:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 23:08:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 23:08:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 23:08:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-23 23:08:25,744 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-23 23:08:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-23 23:08:25,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-23 23:08:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:08:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:08:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:08:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:08:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:08:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:08:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-11-23 23:08:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-11-23 23:08:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-23 23:08:25,746 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-23 23:08:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-23 23:08:25,746 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-23 23:08:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-23 23:08:25,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-23 23:08:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:08:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:08:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:08:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:08:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:08:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:08:26,232 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:08:26,237 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:08:33,453 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-23 23:08:33,454 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:08:33,483 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:08:33,486 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:08:33,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:08:33 BoogieIcfgContainer [2024-11-23 23:08:33,487 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:08:33,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:08:33,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:08:33,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:08:33,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:08:21" (1/3) ... [2024-11-23 23:08:33,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c0ee3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:08:33, skipping insertion in model container [2024-11-23 23:08:33,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:08:25" (2/3) ... [2024-11-23 23:08:33,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c0ee3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:08:33, skipping insertion in model container [2024-11-23 23:08:33,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:08:33" (3/3) ... [2024-11-23 23:08:33,503 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2024-11-23 23:08:33,531 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:08:33,533 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_erase_harness.i that has 21 procedures, 254 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:08:33,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:08:33,649 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;@3a6d3132, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:08:33,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:08:33,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-23 23:08:33,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-23 23:08:33,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:33,673 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:33,673 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:33,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:33,681 INFO L85 PathProgramCache]: Analyzing trace with hash 939077441, now seen corresponding path program 1 times [2024-11-23 23:08:33,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:33,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996266244] [2024-11-23 23:08:33,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:33,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:43,471 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-23 23:08:43,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:43,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996266244] [2024-11-23 23:08:43,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996266244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:08:43,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458773449] [2024-11-23 23:08:43,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:43,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:08:43,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:08:43,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:08:43,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:08:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:51,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:08:51,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:51,288 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-23 23:08:51,288 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:08:51,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458773449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:51,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:08:51,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:08:51,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658063478] [2024-11-23 23:08:51,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:51,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:08:51,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:51,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:08:51,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:08:51,325 INFO L87 Difference]: Start difference. First operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:08:51,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:51,402 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2024-11-23 23:08:51,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:08:51,404 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-11-23 23:08:51,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:51,418 INFO L225 Difference]: With dead ends: 499 [2024-11-23 23:08:51,419 INFO L226 Difference]: Without dead ends: 249 [2024-11-23 23:08:51,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:08:51,437 INFO L435 NwaCegarLoop]: 345 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, 345 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:51,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:08:51,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-23 23:08:51,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-11-23 23:08:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 141 states have internal predecessors, (165), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-23 23:08:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2024-11-23 23:08:51,513 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2024-11-23 23:08:51,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:51,517 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2024-11-23 23:08:51,517 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:08:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2024-11-23 23:08:51,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-23 23:08:51,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:51,523 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:51,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:08:51,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:08:51,724 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:51,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:51,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1387993283, now seen corresponding path program 1 times [2024-11-23 23:08:51,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:51,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890589505] [2024-11-23 23:08:51,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:51,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 23:09:01,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:01,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890589505] [2024-11-23 23:09:01,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890589505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:09:01,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023153661] [2024-11-23 23:09:01,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:01,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:09:01,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:09:01,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:09:01,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:09:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:08,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 23:09:08,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:09:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-23 23:09:08,521 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:09:08,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023153661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:08,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:09:08,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2024-11-23 23:09:08,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687842759] [2024-11-23 23:09:08,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:08,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:09:08,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:08,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:09:08,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:09:08,525 INFO L87 Difference]: Start difference. First operand 249 states and 340 transitions. Second operand has 7 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:09:09,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:09,875 INFO L93 Difference]: Finished difference Result 450 states and 644 transitions. [2024-11-23 23:09:09,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:09:09,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 87 [2024-11-23 23:09:09,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:09,881 INFO L225 Difference]: With dead ends: 450 [2024-11-23 23:09:09,881 INFO L226 Difference]: Without dead ends: 254 [2024-11-23 23:09:09,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:09:09,884 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 1 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:09,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1880 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 23:09:09,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-23 23:09:09,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 251. [2024-11-23 23:09:09,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 141 states have (on average 1.177304964539007) internal successors, (166), 143 states have internal predecessors, (166), 88 states have call successors, (88), 20 states have call predecessors, (88), 21 states have return successors, (104), 87 states have call predecessors, (104), 87 states have call successors, (104) [2024-11-23 23:09:09,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 358 transitions. [2024-11-23 23:09:09,922 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 358 transitions. Word has length 87 [2024-11-23 23:09:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:09,922 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 358 transitions. [2024-11-23 23:09:09,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:09:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 358 transitions. [2024-11-23 23:09:09,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 23:09:09,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:09,927 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:09,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:09:10,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:09:10,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:10,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:10,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2039878225, now seen corresponding path program 1 times [2024-11-23 23:09:10,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:10,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750795567] [2024-11-23 23:09:10,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:10,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-23 23:09:18,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:18,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750795567] [2024-11-23 23:09:18,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750795567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:09:18,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889515883] [2024-11-23 23:09:18,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:18,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:09:18,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:09:18,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:09:18,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:09:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:25,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 4260 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:09:25,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:09:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 23:09:27,292 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:09:27,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889515883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:27,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:09:27,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2024-11-23 23:09:27,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191793672] [2024-11-23 23:09:27,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:27,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:09:27,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:27,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:09:27,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:09:27,295 INFO L87 Difference]: Start difference. First operand 251 states and 358 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-23 23:09:29,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:29,072 INFO L93 Difference]: Finished difference Result 304 states and 423 transitions. [2024-11-23 23:09:29,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:09:29,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 102 [2024-11-23 23:09:29,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:29,076 INFO L225 Difference]: With dead ends: 304 [2024-11-23 23:09:29,076 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:09:29,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:09:29,081 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 119 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:29,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 563 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:09:29,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:09:29,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:09:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:29,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:09:29,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2024-11-23 23:09:29,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:29,087 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:09:29,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-23 23:09:29,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:09:29,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:09:29,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:09:29,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:09:29,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:09:29,297 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 23:09:29,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:09:32,834 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:09:32,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:09:32 BoogieIcfgContainer [2024-11-23 23:09:32,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:09:32,846 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:09:32,846 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:09:32,846 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:09:32,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:08:33" (3/4) ... [2024-11-23 23:09:32,852 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:09:32,860 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2024-11-23 23:09:32,860 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_array_list_has_allocated_data_member [2024-11-23 23:09:32,860 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memset [2024-11-23 23:09:32,860 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memset_impl [2024-11-23 23:09:32,861 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint8_t [2024-11-23 23:09:32,861 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_bounded [2024-11-23 23:09:32,861 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_valid [2024-11-23 23:09:32,861 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-11-23 23:09:32,861 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-23 23:09:32,861 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2024-11-23 23:09:32,862 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2024-11-23 23:09:32,862 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2024-11-23 23:09:32,862 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2024-11-23 23:09:32,862 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_size_t [2024-11-23 23:09:32,862 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memmove [2024-11-23 23:09:32,862 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memmove_impl [2024-11-23 23:09:32,862 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2024-11-23 23:09:32,863 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_length [2024-11-23 23:09:32,863 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_pop_back [2024-11-23 23:09:32,863 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-23 23:09:32,879 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 147 nodes and edges [2024-11-23 23:09:32,881 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2024-11-23 23:09:32,882 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-23 23:09:32,884 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-23 23:09:32,886 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-23 23:09:32,887 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 23:09:32,889 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 23:09:32,890 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:09:34,052 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:09:34,053 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:09:34,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:09:34,054 INFO L158 Benchmark]: Toolchain (without parser) took 72230.13ms. Allocated memory was 117.4MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 85.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-23 23:09:34,055 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:09:34,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3292.14ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 35.7MB in the end (delta: 49.1MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. [2024-11-23 23:09:34,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 200.75ms. Allocated memory is still 117.4MB. Free memory was 35.7MB in the beginning and 64.6MB in the end (delta: -28.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-23 23:09:34,056 INFO L158 Benchmark]: Boogie Preprocessor took 319.41ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 47.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:09:34,057 INFO L158 Benchmark]: RCFGBuilder took 7846.99ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 47.8MB in the beginning and 133.3MB in the end (delta: -85.6MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. [2024-11-23 23:09:34,057 INFO L158 Benchmark]: TraceAbstraction took 59354.73ms. Allocated memory was 234.9MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 133.3MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-23 23:09:34,058 INFO L158 Benchmark]: Witness Printer took 1207.04ms. Allocated memory is still 3.1GB. Free memory was 1.6GB in the beginning and 1.5GB in the end (delta: 133.7MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. [2024-11-23 23:09:34,060 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3292.14ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 35.7MB in the end (delta: 49.1MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 200.75ms. Allocated memory is still 117.4MB. Free memory was 35.7MB in the beginning and 64.6MB in the end (delta: -28.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 319.41ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 47.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 7846.99ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 47.8MB in the beginning and 133.3MB in the end (delta: -85.6MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. * TraceAbstraction took 59354.73ms. Allocated memory was 234.9MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 133.3MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 1207.04ms. Allocated memory is still 3.1GB. Free memory was 1.6GB in the beginning and 1.5GB in the end (delta: 133.7MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7825]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.7s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 2788 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2037 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 310 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 751 mSDtfsCounter, 310 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 301 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 552 NumberOfCodeBlocks, 552 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 546 ConstructedInterpolants, 0 QuantifiedInterpolants, 743 SizeOfPredicates, 5 NumberOfNonLiveVariables, 12514 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 472/504 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 23:09:34,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e98b84-b51f-4919-b19a-5eb42432ed63/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE