./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/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_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:51:42,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:51:42,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:51:42,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:51:42,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:51:42,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:51:42,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:51:42,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:51:42,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:51:42,950 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:51:42,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:51:42,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:51:42,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:51:42,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:51:42,951 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:51:42,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:51:42,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:51:42,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:51:42,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:51:42,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:51:42,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:51:42,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:51:42,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:51:42,952 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:51:42,952 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:51:42,952 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:51:42,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:51:42,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:51:42,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:51:42,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:51:42,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:51:42,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:51:42,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:51:42,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:51:42,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:51:42,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:51:42,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:51:42,954 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:51:42,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:51:42,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:51:42,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:51:42,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:51:42,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:51:42,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:51:42,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:51:42,955 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_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b [2024-11-28 03:51:43,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:51:43,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:51:43,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:51:43,303 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:51:43,304 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:51:43,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2024-11-28 03:51:46,460 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/data/ba94ab64e/39a94a80ac1e43338f245aec9b494d82/FLAG68bee80d6 [2024-11-28 03:51:47,048 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:51:47,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2024-11-28 03:51:47,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/data/ba94ab64e/39a94a80ac1e43338f245aec9b494d82/FLAG68bee80d6 [2024-11-28 03:51:47,101 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/data/ba94ab64e/39a94a80ac1e43338f245aec9b494d82 [2024-11-28 03:51:47,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:51:47,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:51:47,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:51:47,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:51:47,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:51:47,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:51:47" (1/1) ... [2024-11-28 03:51:47,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e44cdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:47, skipping insertion in model container [2024-11-28 03:51:47,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:51:47" (1/1) ... [2024-11-28 03:51:47,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:51:47,604 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_2c10929a-9c48-4af1-8cc9-908a0b8cda02/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2024-11-28 03:51:47,615 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_2c10929a-9c48-4af1-8cc9-908a0b8cda02/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2024-11-28 03:51:48,835 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,835 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,836 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,837 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,838 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,855 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,856 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,858 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,859 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,861 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,862 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,863 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:48,863 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,573 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,574 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,582 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,583 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,590 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,590 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,597 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,605 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,688 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,689 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:51:49,734 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:51:49,757 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_2c10929a-9c48-4af1-8cc9-908a0b8cda02/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2024-11-28 03:51:49,758 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_2c10929a-9c48-4af1-8cc9-908a0b8cda02/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2024-11-28 03:51:49,852 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,853 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,853 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,854 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,855 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,866 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,868 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,869 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,870 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,873 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,874 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,875 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:49,875 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,011 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,013 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,015 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,016 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,017 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,017 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,019 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,030 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2024-11-28 03:51:50,066 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,067 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:50,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:51:50,290 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:51:50,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50 WrapperNode [2024-11-28 03:51:50,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:51:50,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:51:50,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:51:50,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:51:50,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,446 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2024-11-28 03:51:50,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:51:50,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:51:50,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:51:50,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:51:50,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,478 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,592 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 3, 6, 73, 9]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 1, 0, 10, 5]. The 243 writes are split as follows [232, 0, 1, 2, 6, 2]. [2024-11-28 03:51:50,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,670 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:51:50,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:51:50,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:51:50,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:51:50,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (1/1) ... [2024-11-28 03:51:50,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:51:50,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:51:50,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:51:50,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:51:50,856 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-11-28 03:51:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-11-28 03:51:50,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:51:50,856 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-28 03:51:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-28 03:51:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 03:51:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:51:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 03:51:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:51:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2024-11-28 03:51:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:51:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:51:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 03:51:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 03:51:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:51:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:51:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 03:51:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 03:51:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 03:51:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 03:51:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-28 03:51:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-28 03:51:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 03:51:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 03:51:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 03:51:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 03:51:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 03:51:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 03:51:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 03:51:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 03:51:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-28 03:51:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-28 03:51:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:51:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:51:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-28 03:51:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-28 03:51:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 03:51:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 03:51:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 03:51:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-11-28 03:51:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-28 03:51:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-28 03:51:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-28 03:51:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-28 03:51:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-28 03:51:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:51:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:51:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:51:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:51:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:51:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:51:51,311 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:51:51,317 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:51:58,476 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-28 03:51:58,477 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:51:58,505 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:51:58,506 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:51:58,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:51:58 BoogieIcfgContainer [2024-11-28 03:51:58,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:51:58,509 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:51:58,509 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:51:58,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:51:58,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:51:47" (1/3) ... [2024-11-28 03:51:58,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4757082a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:51:58, skipping insertion in model container [2024-11-28 03:51:58,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:50" (2/3) ... [2024-11-28 03:51:58,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4757082a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:51:58, skipping insertion in model container [2024-11-28 03:51:58,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:51:58" (3/3) ... [2024-11-28 03:51:58,522 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2024-11-28 03:51:58,545 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:51:58,547 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. [2024-11-28 03:51:58,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:51:58,653 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;@5f04d3af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:51:58,654 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:51:58,660 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) [2024-11-28 03:51:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 03:51:58,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:51:58,673 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] [2024-11-28 03:51:58,674 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:51:58,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:51:58,681 INFO L85 PathProgramCache]: Analyzing trace with hash 939077441, now seen corresponding path program 1 times [2024-11-28 03:51:58,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:51:58,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383702836] [2024-11-28 03:51:58,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:51:58,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:52:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-28 03:52:07,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:52:07,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383702836] [2024-11-28 03:52:07,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383702836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:52:07,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429784051] [2024-11-28 03:52:07,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:07,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:52:07,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:52:07,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:52:07,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:52:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:15,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:52:15,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:52:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-28 03:52:15,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:52:15,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429784051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:52:15,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:52:15,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:52:15,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664889926] [2024-11-28 03:52:15,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:52:15,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:52:15,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:52:15,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:52:15,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:52:15,727 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) [2024-11-28 03:52:15,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:52:15,795 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2024-11-28 03:52:15,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:52:15,798 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 [2024-11-28 03:52:15,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:52:15,810 INFO L225 Difference]: With dead ends: 499 [2024-11-28 03:52:15,811 INFO L226 Difference]: Without dead ends: 249 [2024-11-28 03:52:15,820 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 [2024-11-28 03:52:15,823 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 [2024-11-28 03:52:15,824 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] [2024-11-28 03:52:15,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-28 03:52:15,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-11-28 03:52:15,889 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) [2024-11-28 03:52:15,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2024-11-28 03:52:15,901 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2024-11-28 03:52:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:52:15,902 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2024-11-28 03:52:15,903 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) [2024-11-28 03:52:15,903 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2024-11-28 03:52:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 03:52:15,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:52:15,907 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] [2024-11-28 03:52:15,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:52:16,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:52:16,112 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:52:16,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:52:16,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1387993283, now seen corresponding path program 1 times [2024-11-28 03:52:16,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:52:16,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443584693] [2024-11-28 03:52:16,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:16,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:52:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:25,253 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 03:52:25,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:52:25,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443584693] [2024-11-28 03:52:25,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443584693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:52:25,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266991128] [2024-11-28 03:52:25,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:25,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:52:25,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:52:25,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:52:25,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:52:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:33,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:52:33,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:52:33,927 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 03:52:33,927 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:52:33,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266991128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:52:33,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:52:33,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2024-11-28 03:52:33,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219103658] [2024-11-28 03:52:33,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:52:33,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:52:33,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:52:33,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:52:33,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:52:33,930 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) [2024-11-28 03:52:35,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:52:35,420 INFO L93 Difference]: Finished difference Result 450 states and 644 transitions. [2024-11-28 03:52:35,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:52:35,422 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 [2024-11-28 03:52:35,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:52:35,428 INFO L225 Difference]: With dead ends: 450 [2024-11-28 03:52:35,428 INFO L226 Difference]: Without dead ends: 254 [2024-11-28 03:52:35,430 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 [2024-11-28 03:52:35,431 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 1 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:52:35,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1880 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:52:35,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-28 03:52:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 251. [2024-11-28 03:52:35,465 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) [2024-11-28 03:52:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 358 transitions. [2024-11-28 03:52:35,471 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 358 transitions. Word has length 87 [2024-11-28 03:52:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:52:35,471 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 358 transitions. [2024-11-28 03:52:35,472 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) [2024-11-28 03:52:35,472 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 358 transitions. [2024-11-28 03:52:35,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 03:52:35,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:52:35,476 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] [2024-11-28 03:52:35,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:52:35,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:52:35,677 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:52:35,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:52:35,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2039878225, now seen corresponding path program 1 times [2024-11-28 03:52:35,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:52:35,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159916387] [2024-11-28 03:52:35,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:35,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:52:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 03:52:45,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:52:45,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159916387] [2024-11-28 03:52:45,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159916387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:52:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895305212] [2024-11-28 03:52:45,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:45,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:52:45,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:52:45,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:52:45,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:52:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:53,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 4260 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:52:53,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:52:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 03:52:55,188 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:52:55,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895305212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:52:55,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:52:55,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2024-11-28 03:52:55,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056099756] [2024-11-28 03:52:55,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:52:55,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:52:55,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:52:55,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:52:55,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:52:55,192 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) [2024-11-28 03:52:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:52:57,190 INFO L93 Difference]: Finished difference Result 304 states and 423 transitions. [2024-11-28 03:52:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:52:57,193 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 [2024-11-28 03:52:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:52:57,196 INFO L225 Difference]: With dead ends: 304 [2024-11-28 03:52:57,197 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:52:57,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:52:57,204 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 119 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:52:57,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 563 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:52:57,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:52:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:52:57,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:52:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:52:57,206 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2024-11-28 03:52:57,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:52:57,209 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:52:57,209 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) [2024-11-28 03:52:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:52:57,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:52:57,214 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:52:57,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:52:57,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:52:57,419 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 03:52:57,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:53:01,821 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:53:01,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:53:01 BoogieIcfgContainer [2024-11-28 03:53:01,831 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:53:01,832 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:53:01,832 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:53:01,832 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:53:01,834 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:51:58" (3/4) ... [2024-11-28 03:53:01,838 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:53:01,846 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2024-11-28 03:53:01,846 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_array_list_has_allocated_data_member [2024-11-28 03:53:01,846 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memset [2024-11-28 03:53:01,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memset_impl [2024-11-28 03:53:01,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint8_t [2024-11-28 03:53:01,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_bounded [2024-11-28 03:53:01,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_valid [2024-11-28 03:53:01,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-11-28 03:53:01,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 03:53:01,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2024-11-28 03:53:01,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2024-11-28 03:53:01,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2024-11-28 03:53:01,850 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2024-11-28 03:53:01,850 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_size_t [2024-11-28 03:53:01,850 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memmove [2024-11-28 03:53:01,850 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memmove_impl [2024-11-28 03:53:01,851 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2024-11-28 03:53:01,851 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_length [2024-11-28 03:53:01,851 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_pop_back [2024-11-28 03:53:01,851 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 03:53:01,882 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 147 nodes and edges [2024-11-28 03:53:01,887 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2024-11-28 03:53:01,888 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-28 03:53:01,890 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 03:53:01,892 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 03:53:01,894 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:53:01,896 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 03:53:01,897 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:53:02,997 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:53:02,998 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:53:02,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:53:03,000 INFO L158 Benchmark]: Toolchain (without parser) took 75894.03ms. Allocated memory was 142.6MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 111.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-28 03:53:03,001 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:53:03,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3184.96ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 74.7MB in the end (delta: 36.8MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2024-11-28 03:53:03,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.85ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 65.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:53:03,003 INFO L158 Benchmark]: Boogie Preprocessor took 282.01ms. Allocated memory is still 142.6MB. Free memory was 65.6MB in the beginning and 48.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:53:03,004 INFO L158 Benchmark]: RCFGBuilder took 7772.67ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 48.8MB in the beginning and 173.6MB in the end (delta: -124.8MB). Peak memory consumption was 168.1MB. Max. memory is 16.1GB. [2024-11-28 03:53:03,004 INFO L158 Benchmark]: TraceAbstraction took 63321.78ms. Allocated memory was 427.8MB in the beginning and 3.0GB in the end (delta: 2.5GB). Free memory was 172.8MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-28 03:53:03,005 INFO L158 Benchmark]: Witness Printer took 1166.38ms. Allocated memory is still 3.0GB. Free memory was 1.3GB in the beginning and 1.2GB in the end (delta: 134.2MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. [2024-11-28 03:53:03,008 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3184.96ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 74.7MB in the end (delta: 36.8MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 154.85ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 65.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 282.01ms. Allocated memory is still 142.6MB. Free memory was 65.6MB in the beginning and 48.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 7772.67ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 48.8MB in the beginning and 173.6MB in the end (delta: -124.8MB). Peak memory consumption was 168.1MB. Max. memory is 16.1GB. * TraceAbstraction took 63321.78ms. Allocated memory was 427.8MB in the beginning and 3.0GB in the end (delta: 2.5GB). Free memory was 172.8MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 1166.38ms. Allocated memory is still 3.0GB. Free memory was 1.3GB in the beginning and 1.2GB in the end (delta: 134.2MB). 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: 58.8s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 2788 SdHoareTripleChecker+Invalid, 2.4s 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, 3.6s 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: 0.9s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 10.1s 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! [2024-11-28 03:53:03,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c10929a-9c48-4af1-8cc9-908a0b8cda02/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE