./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.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_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/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_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/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_238df52d-05de-45d7-8450-edad27547cb7/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 e75e79bb7da52b492a2e3ddc8479f7ccf1edef9ee409c71a9e1468a3f8e14895 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:30:22,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:30:22,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:30:22,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:30:22,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:30:22,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:30:22,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:30:22,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:30:22,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:30:22,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:30:22,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:30:22,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:30:22,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:30:22,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:30:22,162 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:30:22,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:30:22,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:30:22,163 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:30:22,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:30:22,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:30:22,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:30:22,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:30:22,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:30:22,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:30:22,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:30:22,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:30:22,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:30:22,164 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:30:22,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:30:22,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:30:22,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:30:22,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:30:22,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:30:22,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:30:22,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:30:22,165 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_238df52d-05de-45d7-8450-edad27547cb7/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 -> e75e79bb7da52b492a2e3ddc8479f7ccf1edef9ee409c71a9e1468a3f8e14895 [2024-12-02 12:30:22,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:30:22,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:30:22,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:30:22,409 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:30:22,409 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:30:22,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2024-12-02 12:30:25,108 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/data/62a2ea985/d274068ddedf48cf9011539a9ae0c190/FLAG03fd3e5d1 [2024-12-02 12:30:25,529 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:30:25,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2024-12-02 12:30:25,567 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/data/62a2ea985/d274068ddedf48cf9011539a9ae0c190/FLAG03fd3e5d1 [2024-12-02 12:30:25,689 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/data/62a2ea985/d274068ddedf48cf9011539a9ae0c190 [2024-12-02 12:30:25,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:30:25,692 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:30:25,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:30:25,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:30:25,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:30:25,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:30:25" (1/1) ... [2024-12-02 12:30:25,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2bbe45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:25, skipping insertion in model container [2024-12-02 12:30:25,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:30:25" (1/1) ... [2024-12-02 12:30:25,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:30:25,937 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_238df52d-05de-45d7-8450-edad27547cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2024-12-02 12:30:25,942 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_238df52d-05de-45d7-8450-edad27547cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2024-12-02 12:30:26,821 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:26,821 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:26,822 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:26,823 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:26,824 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:26,839 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:26,840 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:26,842 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:26,843 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,522 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,522 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:30:27,646 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:30:27,660 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_238df52d-05de-45d7-8450-edad27547cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2024-12-02 12:30:27,661 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_238df52d-05de-45d7-8450-edad27547cb7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2024-12-02 12:30:27,702 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,702 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,702 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,703 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,703 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,709 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,709 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,710 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,711 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2024-12-02 12:30:27,820 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,821 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:30:27,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2024-12-02 12:30:27,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:30:28,057 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:30:28,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28 WrapperNode [2024-12-02 12:30:28,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:30:28,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:30:28,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:30:28,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:30:28,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,169 INFO L138 Inliner]: procedures = 680, calls = 2647, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 835 [2024-12-02 12:30:28,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:30:28,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:30:28,170 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:30:28,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:30:28,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,249 INFO L175 MemorySlicer]: Split 548 memory accesses to 8 slices as follows [2, 257, 34, 238, 4, 6, 2, 5]. 47 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 4, 6, 0, 0, 0, 5]. The 494 writes are split as follows [0, 257, 3, 232, 0, 2, 0, 0]. [2024-12-02 12:30:28,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,279 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:30:28,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:30:28,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:30:28,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:30:28,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (1/1) ... [2024-12-02 12:30:28,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:30:28,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:30:28,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:30:28,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:30:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-12-02 12:30:28,370 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-12-02 12:30:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:30:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 12:30:28,370 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 12:30:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 12:30:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 12:30:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 12:30:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 12:30:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 12:30:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-12-02 12:30:28,371 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 12:30:28,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:30:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-12-02 12:30:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:30:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 12:30:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 12:30:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 12:30:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:30:28,373 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 12:30:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-12-02 12:30:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-12-02 12:30:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2024-12-02 12:30:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2024-12-02 12:30:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:30:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:30:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:30:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:30:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:30:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 12:30:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 12:30:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 12:30:28,632 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:30:28,634 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:30:36,370 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-12-02 12:30:36,371 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:30:36,383 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:30:36,383 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 12:30:36,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:30:36 BoogieIcfgContainer [2024-12-02 12:30:36,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:30:36,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:30:36,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:30:36,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:30:36,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:30:25" (1/3) ... [2024-12-02 12:30:36,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62afd4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:30:36, skipping insertion in model container [2024-12-02 12:30:36,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:28" (2/3) ... [2024-12-02 12:30:36,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62afd4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:30:36, skipping insertion in model container [2024-12-02 12:30:36,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:30:36" (3/3) ... [2024-12-02 12:30:36,393 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness_negated.i [2024-12-02 12:30:36,407 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:30:36,409 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_compare_lookup_harness_negated.i that has 11 procedures, 134 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:30:36,460 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:30:36,471 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;@589ff13f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:30:36,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:30:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 82 states have internal predecessors, (102), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 12:30:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 12:30:36,484 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:36,485 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:30:36,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:36,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:36,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1455745362, now seen corresponding path program 1 times [2024-12-02 12:30:36,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:36,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537436835] [2024-12-02 12:30:36,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:36,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:32:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:32:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 12:32:03,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:32:03,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537436835] [2024-12-02 12:32:03,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537436835] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:32:03,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843701612] [2024-12-02 12:32:03,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:32:03,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:32:03,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:32:03,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:32:03,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:33:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:28,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 7742 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:33:28,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:33:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-02 12:33:29,095 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:33:29,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843701612] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:29,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:33:29,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 12:33:29,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950702170] [2024-12-02 12:33:29,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:29,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:33:29,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:29,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:33:29,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:33:29,118 INFO L87 Difference]: Start difference. First operand has 134 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 82 states have internal predecessors, (102), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:33:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:30,137 INFO L93 Difference]: Finished difference Result 267 states and 401 transitions. [2024-12-02 12:33:30,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:33:30,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 95 [2024-12-02 12:33:30,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:30,146 INFO L225 Difference]: With dead ends: 267 [2024-12-02 12:33:30,146 INFO L226 Difference]: Without dead ends: 131 [2024-12-02 12:33:30,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:33:30,152 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 182 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:30,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 391 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:33:30,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-12-02 12:33:30,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-12-02 12:33:30,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.2179487179487178) internal successors, (95), 80 states have internal predecessors, (95), 41 states have call successors, (41), 10 states have call predecessors, (41), 11 states have return successors, (48), 40 states have call predecessors, (48), 40 states have call successors, (48) [2024-12-02 12:33:30,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 184 transitions. [2024-12-02 12:33:30,193 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 184 transitions. Word has length 95 [2024-12-02 12:33:30,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:30,193 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 184 transitions. [2024-12-02 12:33:30,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:33:30,194 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 184 transitions. [2024-12-02 12:33:30,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 12:33:30,197 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:30,197 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:30,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:33:30,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:33:30,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:30,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:30,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1747697111, now seen corresponding path program 1 times [2024-12-02 12:33:30,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:30,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109536360] [2024-12-02 12:33:30,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:30,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:34:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:34:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 12:34:56,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:34:56,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109536360] [2024-12-02 12:34:56,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109536360] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:34:56,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023640036] [2024-12-02 12:34:56,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:34:56,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:34:56,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:34:56,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:34:56,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:36:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:22,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 7747 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:36:22,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:36:23,569 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 12:36:23,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:36:23,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023640036] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:23,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:36:23,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-12-02 12:36:23,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906613489] [2024-12-02 12:36:23,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:23,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:36:23,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:23,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:36:23,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:36:23,571 INFO L87 Difference]: Start difference. First operand 131 states and 184 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 12:36:25,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:25,485 INFO L93 Difference]: Finished difference Result 212 states and 303 transitions. [2024-12-02 12:36:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:36:25,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 97 [2024-12-02 12:36:25,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:25,488 INFO L225 Difference]: With dead ends: 212 [2024-12-02 12:36:25,489 INFO L226 Difference]: Without dead ends: 131 [2024-12-02 12:36:25,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-12-02 12:36:25,490 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 192 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:25,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 568 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 12:36:25,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-12-02 12:36:25,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-12-02 12:36:25,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.2179487179487178) internal successors, (95), 80 states have internal predecessors, (95), 41 states have call successors, (41), 10 states have call predecessors, (41), 11 states have return successors, (45), 40 states have call predecessors, (45), 40 states have call successors, (45) [2024-12-02 12:36:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 181 transitions. [2024-12-02 12:36:25,502 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 181 transitions. Word has length 97 [2024-12-02 12:36:25,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:25,502 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 181 transitions. [2024-12-02 12:36:25,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 12:36:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 181 transitions. [2024-12-02 12:36:25,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 12:36:25,504 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:25,505 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:25,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 12:36:25,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:36:25,705 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:25,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:25,706 INFO L85 PathProgramCache]: Analyzing trace with hash 720707785, now seen corresponding path program 2 times [2024-12-02 12:36:25,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:25,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286688976] [2024-12-02 12:36:25,706 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:36:25,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:51,047 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:37:51,047 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:37:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-12-02 12:37:53,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:53,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286688976] [2024-12-02 12:37:53,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286688976] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:37:53,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345370550] [2024-12-02 12:37:53,315 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:37:53,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:53,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:37:53,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:37:53,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238df52d-05de-45d7-8450-edad27547cb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process