./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_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/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_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1 --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 [2024-12-02 08:48:18,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:48:18,783 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:48:18,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:48:18,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:48:18,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:48:18,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:48:18,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:48:18,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:48:18,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:48:18,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:48:18,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:48:18,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:48:18,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:48:18,812 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:48:18,813 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:48:18,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:48:18,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:48:18,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:48:18,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:48:18,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:48:18,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:48:18,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:48:18,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:48:18,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:48:18,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:48:18,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:48:18,814 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:48:18,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:48:18,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:48:18,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:48:18,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:48:18,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:48:18,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:48:18,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:48:18,814 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_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 08:48:19,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:48:19,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:48:19,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:48:19,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:48:19,062 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:48:19,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2024-12-02 08:48:21,678 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/data/1ed3d9c1e/581736043c0e4b05bcb16d31a04cdd88/FLAG4fcad2d7d [2024-12-02 08:48:22,061 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:48:22,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2024-12-02 08:48:22,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/data/1ed3d9c1e/581736043c0e4b05bcb16d31a04cdd88/FLAG4fcad2d7d [2024-12-02 08:48:22,100 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/data/1ed3d9c1e/581736043c0e4b05bcb16d31a04cdd88 [2024-12-02 08:48:22,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:48:22,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:48:22,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:48:22,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:48:22,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:48:22,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:48:22" (1/1) ... [2024-12-02 08:48:22,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24db0234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:22, skipping insertion in model container [2024-12-02 08:48:22,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:48:22" (1/1) ... [2024-12-02 08:48:22,205 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:48:22,411 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2024-12-02 08:48:22,415 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_0cd75059-eb18-4185-882f-5c2568462a71/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2024-12-02 08:48:23,132 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,133 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,133 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,134 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,134 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,144 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,144 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,146 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,146 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,148 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,149 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,149 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,150 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,603 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,604 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,618 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,618 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,624 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,630 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,684 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,684 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:48:23,715 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:48:23,728 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_0cd75059-eb18-4185-882f-5c2568462a71/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2024-12-02 08:48:23,729 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_0cd75059-eb18-4185-882f-5c2568462a71/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2024-12-02 08:48:23,793 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,794 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,794 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,795 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,795 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,801 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,802 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,803 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,803 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,804 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,804 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,805 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,805 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,866 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,866 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,868 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,869 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,870 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,870 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,871 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,874 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,880 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2024-12-02 08:48:23,892 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,893 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 08:48:23,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:48:24,038 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:48:24,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24 WrapperNode [2024-12-02 08:48:24,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:48:24,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:48:24,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:48:24,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:48:24,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,136 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2024-12-02 08:48:24,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:48:24,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:48:24,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:48:24,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:48:24,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,216 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 3, 73, 9, 6]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 1, 10, 5, 0]. The 243 writes are split as follows [232, 0, 1, 6, 2, 2]. [2024-12-02 08:48:24,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,248 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:48:24,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:48:24,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:48:24,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:48:24,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (1/1) ... [2024-12-02 08:48:24,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:48:24,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:48:24,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:48:24,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:48:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-12-02 08:48:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-12-02 08:48:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-12-02 08:48:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 08:48:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:48:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-12-02 08:48:24,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 08:48:24,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2024-12-02 08:48:24,344 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 08:48:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:48:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 08:48:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 08:48:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-12-02 08:48:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-12-02 08:48:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 08:48:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-12-02 08:48:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:48:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-12-02 08:48:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 08:48:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-12-02 08:48:24,347 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-12-02 08:48:24,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:48:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-12-02 08:48:24,347 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-12-02 08:48:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-12-02 08:48:24,348 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-12-02 08:48:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-12-02 08:48:24,348 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-12-02 08:48:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-12-02 08:48:24,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-12-02 08:48:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:48:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:48:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:48:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:48:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:48:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:48:24,631 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:48:24,633 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:48:30,720 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-12-02 08:48:30,720 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:48:30,733 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:48:30,733 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 08:48:30,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:48:30 BoogieIcfgContainer [2024-12-02 08:48:30,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:48:30,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:48:30,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:48:30,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:48:30,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:48:22" (1/3) ... [2024-12-02 08:48:30,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f995339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:48:30, skipping insertion in model container [2024-12-02 08:48:30,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:24" (2/3) ... [2024-12-02 08:48:30,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f995339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:48:30, skipping insertion in model container [2024-12-02 08:48:30,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:48:30" (3/3) ... [2024-12-02 08:48:30,741 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2024-12-02 08:48:30,751 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:48:30,753 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. [2024-12-02 08:48:30,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:48:30,811 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;@305f4eed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:48:30,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:48:30,815 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) [2024-12-02 08:48:30,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 08:48:30,824 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:30,824 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] [2024-12-02 08:48:30,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:30,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:30,829 INFO L85 PathProgramCache]: Analyzing trace with hash 939077441, now seen corresponding path program 1 times [2024-12-02 08:48:30,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:48:30,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482342849] [2024-12-02 08:48:30,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:30,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:48:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-12-02 08:48:36,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:48:36,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482342849] [2024-12-02 08:48:36,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482342849] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:48:36,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205264719] [2024-12-02 08:48:36,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:36,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:48:36,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:48:36,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:48:36,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:48:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:42,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:48:42,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-12-02 08:48:42,251 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:48:42,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205264719] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:48:42,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:48:42,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:48:42,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308615390] [2024-12-02 08:48:42,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:42,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:48:42,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:48:42,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:48:42,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:48:42,273 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) [2024-12-02 08:48:42,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:42,321 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2024-12-02 08:48:42,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:48:42,323 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 [2024-12-02 08:48:42,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:42,330 INFO L225 Difference]: With dead ends: 499 [2024-12-02 08:48:42,331 INFO L226 Difference]: Without dead ends: 249 [2024-12-02 08:48:42,335 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 [2024-12-02 08:48:42,337 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 [2024-12-02 08:48:42,338 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] [2024-12-02 08:48:42,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-12-02 08:48:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-12-02 08:48:42,373 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) [2024-12-02 08:48:42,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2024-12-02 08:48:42,380 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2024-12-02 08:48:42,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:42,381 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2024-12-02 08:48:42,381 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) [2024-12-02 08:48:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2024-12-02 08:48:42,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 08:48:42,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:42,383 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] [2024-12-02 08:48:42,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-12-02 08:48:42,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:48:42,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:42,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:42,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1387993283, now seen corresponding path program 1 times [2024-12-02 08:48:42,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:48:42,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200471489] [2024-12-02 08:48:42,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:42,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:48:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:49,877 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-12-02 08:48:49,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:48:49,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200471489] [2024-12-02 08:48:49,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200471489] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:48:49,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605597127] [2024-12-02 08:48:49,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:49,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:48:49,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:48:49,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:48:49,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:48:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:55,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:48:55,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:56,025 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-02 08:48:56,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:48:56,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605597127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:48:56,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:48:56,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2024-12-02 08:48:56,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764510296] [2024-12-02 08:48:56,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:56,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:48:56,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:48:56,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:48:56,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:48:56,027 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) [2024-12-02 08:48:57,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:57,234 INFO L93 Difference]: Finished difference Result 450 states and 644 transitions. [2024-12-02 08:48:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:48:57,235 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 [2024-12-02 08:48:57,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:57,239 INFO L225 Difference]: With dead ends: 450 [2024-12-02 08:48:57,240 INFO L226 Difference]: Without dead ends: 254 [2024-12-02 08:48:57,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:48:57,242 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 1 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:57,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1880 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:48:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-12-02 08:48:57,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 251. [2024-12-02 08:48:57,264 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) [2024-12-02 08:48:57,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 358 transitions. [2024-12-02 08:48:57,268 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 358 transitions. Word has length 87 [2024-12-02 08:48:57,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:57,269 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 358 transitions. [2024-12-02 08:48:57,269 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) [2024-12-02 08:48:57,269 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 358 transitions. [2024-12-02 08:48:57,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 08:48:57,271 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:57,272 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] [2024-12-02 08:48:57,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:48:57,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:48:57,472 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:57,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:57,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2039878225, now seen corresponding path program 1 times [2024-12-02 08:48:57,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:48:57,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905931755] [2024-12-02 08:48:57,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:57,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:49:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:03,805 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-12-02 08:49:03,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:49:03,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905931755] [2024-12-02 08:49:03,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905931755] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:49:03,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871143776] [2024-12-02 08:49:03,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:03,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:49:03,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:49:03,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:49:03,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:49:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:09,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 4260 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 08:49:09,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:49:10,435 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 08:49:10,436 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:49:10,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871143776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:49:10,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:49:10,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2024-12-02 08:49:10,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035779189] [2024-12-02 08:49:10,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:49:10,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:49:10,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:49:10,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:49:10,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:49:10,438 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) [2024-12-02 08:49:12,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:12,251 INFO L93 Difference]: Finished difference Result 304 states and 423 transitions. [2024-12-02 08:49:12,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:49:12,251 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 [2024-12-02 08:49:12,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:12,252 INFO L225 Difference]: With dead ends: 304 [2024-12-02 08:49:12,253 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:49:12,254 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 [2024-12-02 08:49:12,255 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 [2024-12-02 08:49:12,255 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] [2024-12-02 08:49:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:49:12,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:49:12,256 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) [2024-12-02 08:49:12,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:49:12,257 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2024-12-02 08:49:12,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:49:12,257 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:49:12,257 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) [2024-12-02 08:49:12,257 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:49:12,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:49:12,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:49:12,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:49:12,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-12-02 08:49:12,462 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 08:49:12,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 08:49:15,957 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:49:15,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:49:15 BoogieIcfgContainer [2024-12-02 08:49:15,962 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:49:15,963 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:49:15,963 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:49:15,963 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:49:15,963 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:48:30" (3/4) ... [2024-12-02 08:49:15,965 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 08:49:15,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2024-12-02 08:49:15,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_array_list_has_allocated_data_member [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memset [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memset_impl [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint8_t [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_bounded [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_valid [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_size_t [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memmove [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memmove_impl [2024-12-02 08:49:15,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2024-12-02 08:49:15,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_length [2024-12-02 08:49:15,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_pop_back [2024-12-02 08:49:15,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-02 08:49:15,979 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 147 nodes and edges [2024-12-02 08:49:15,980 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2024-12-02 08:49:15,981 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-12-02 08:49:15,981 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-12-02 08:49:15,982 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 08:49:15,982 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 08:49:15,983 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 08:49:15,984 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 08:49:16,473 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:49:16,473 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:49:16,473 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:49:16,474 INFO L158 Benchmark]: Toolchain (without parser) took 54370.54ms. Allocated memory was 142.6MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 109.9MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 297.3MB. Max. memory is 16.1GB. [2024-12-02 08:49:16,474 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:49:16,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1933.99ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 70.7MB in the end (delta: 39.2MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2024-12-02 08:49:16,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.16ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 61.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:49:16,475 INFO L158 Benchmark]: Boogie Preprocessor took 152.83ms. Allocated memory is still 142.6MB. Free memory was 61.5MB in the beginning and 88.8MB in the end (delta: -27.2MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-12-02 08:49:16,475 INFO L158 Benchmark]: RCFGBuilder took 6443.58ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 88.8MB in the beginning and 269.2MB in the end (delta: -180.5MB). Peak memory consumption was 173.9MB. Max. memory is 16.1GB. [2024-12-02 08:49:16,476 INFO L158 Benchmark]: TraceAbstraction took 45226.78ms. Allocated memory was 335.5MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 269.2MB in the beginning and 2.0GB in the end (delta: -1.7GB). Peak memory consumption was 134.8MB. Max. memory is 16.1GB. [2024-12-02 08:49:16,476 INFO L158 Benchmark]: Witness Printer took 510.43ms. Allocated memory is still 2.2GB. Free memory was 2.0GB in the beginning and 1.8GB in the end (delta: 133.9MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. [2024-12-02 08:49:16,478 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1933.99ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 70.7MB in the end (delta: 39.2MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.16ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 61.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 152.83ms. Allocated memory is still 142.6MB. Free memory was 61.5MB in the beginning and 88.8MB in the end (delta: -27.2MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * RCFGBuilder took 6443.58ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 88.8MB in the beginning and 269.2MB in the end (delta: -180.5MB). Peak memory consumption was 173.9MB. Max. memory is 16.1GB. * TraceAbstraction took 45226.78ms. Allocated memory was 335.5MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 269.2MB in the beginning and 2.0GB in the end (delta: -1.7GB). Peak memory consumption was 134.8MB. Max. memory is 16.1GB. * Witness Printer took 510.43ms. Allocated memory is still 2.2GB. Free memory was 2.0GB in the beginning and 1.8GB in the end (delta: 133.9MB). 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: 41.7s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 2788 SdHoareTripleChecker+Invalid, 2.0s 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, 3.0s 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: 0.5s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 6.5s 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! [2024-12-02 08:49:16,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cd75059-eb18-4185-882f-5c2568462a71/bin/uautomizer-verify-84ZbGMXZE1/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