./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:51:04,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:51:04,478 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:51:04,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:51:04,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:51:04,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:51:04,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:51:04,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:51:04,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:51:04,512 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:51:04,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:51:04,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:51:04,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:51:04,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:51:04,513 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:51:04,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:51:04,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:51:04,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:51:04,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:51:04,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:51:04,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:51:04,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:51:04,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:51:04,514 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:51:04,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:51:04,515 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:51:04,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:51:04,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:51:04,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:51:04,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:51:04,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:51:04,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:51:04,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:51:04,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:51:04,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:51:04,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:51:04,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:51:04,516 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:51:04,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:51:04,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:51:04,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:51:04,518 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:51:04,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:51:04,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:51:04,519 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:51:04,519 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_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2024-11-24 01:51:04,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:51:04,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:51:04,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:51:04,841 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:51:04,841 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:51:04,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2024-11-24 01:51:07,823 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/data/6f7f7ff11/635723692ee24e52a33c090fcc81c7ed/FLAG343425448 [2024-11-24 01:51:08,521 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:51:08,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2024-11-24 01:51:08,579 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/data/6f7f7ff11/635723692ee24e52a33c090fcc81c7ed/FLAG343425448 [2024-11-24 01:51:08,885 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/data/6f7f7ff11/635723692ee24e52a33c090fcc81c7ed [2024-11-24 01:51:08,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:51:08,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:51:08,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:51:08,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:51:08,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:51:08,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:51:08" (1/1) ... [2024-11-24 01:51:08,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9c3ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:08, skipping insertion in model container [2024-11-24 01:51:08,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:51:08" (1/1) ... [2024-11-24 01:51:09,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:51:09,310 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_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2024-11-24 01:51:09,317 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_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2024-11-24 01:51:10,262 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:10,263 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:10,264 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:10,265 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:10,266 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:10,282 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:10,283 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:10,285 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:10,286 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,138 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,139 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:51:11,318 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:51:11,333 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_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2024-11-24 01:51:11,333 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_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2024-11-24 01:51:11,381 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,381 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,381 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,382 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,382 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,390 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,391 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,392 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,392 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-24 01:51:11,590 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,591 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:51:11,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-11-24 01:51:11,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:51:11,920 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:51:11,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11 WrapperNode [2024-11-24 01:51:11,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:51:11,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:51:11,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:51:11,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:51:11,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,109 INFO L138 Inliner]: procedures = 679, calls = 2625, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 990 [2024-11-24 01:51:12,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:51:12,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:51:12,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:51:12,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:51:12,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,130 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,238 INFO L175 MemorySlicer]: Split 559 memory accesses to 8 slices as follows [2, 257, 4, 8, 6, 34, 243, 5]. 46 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 2, 2, 0, 2, 6, 5]. The 501 writes are split as follows [0, 257, 0, 0, 2, 9, 233, 0]. [2024-11-24 01:51:12,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,320 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:51:12,397 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:51:12,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:51:12,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:51:12,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (1/1) ... [2024-11-24 01:51:12,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:51:12,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:51:12,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:51:12,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:51:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-24 01:51:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-24 01:51:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-24 01:51:12,474 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-24 01:51:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:51:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-24 01:51:12,474 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-24 01:51:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-24 01:51:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-24 01:51:12,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 01:51:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:51:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-24 01:51:12,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-24 01:51:12,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-24 01:51:12,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-24 01:51:12,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-24 01:51:12,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-24 01:51:12,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-24 01:51:12,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-24 01:51:12,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-24 01:51:12,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-24 01:51:12,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-24 01:51:12,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-24 01:51:12,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-24 01:51:12,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-24 01:51:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-24 01:51:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-24 01:51:12,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 01:51:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 01:51:12,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:51:12,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:51:12,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:51:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:51:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:51:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:51:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:51:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:51:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:51:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 01:51:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:51:12,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:51:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-24 01:51:12,484 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-24 01:51:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-24 01:51:12,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-24 01:51:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 01:51:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 01:51:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 01:51:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 01:51:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 01:51:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 01:51:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 01:51:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 01:51:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 01:51:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 01:51:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 01:51:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 01:51:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 01:51:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 01:51:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 01:51:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 01:51:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:51:12,488 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:51:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:51:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:51:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:51:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:51:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:51:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:51:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:51:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:51:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 01:51:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:51:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:51:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:51:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:51:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:51:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:51:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 01:51:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 01:51:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-24 01:51:12,490 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-24 01:51:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:51:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:51:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:51:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:51:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:51:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:51:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:51:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:51:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:51:12,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:51:12,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:51:12,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:51:12,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:51:12,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:51:12,999 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:51:13,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:51:22,897 INFO L? ?]: Removed 234 outVars from TransFormulas that were not future-live. [2024-11-24 01:51:22,897 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:51:22,911 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:51:22,913 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 01:51:22,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:51:22 BoogieIcfgContainer [2024-11-24 01:51:22,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:51:22,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:51:22,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:51:22,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:51:22,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:51:08" (1/3) ... [2024-11-24 01:51:22,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e15d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:51:22, skipping insertion in model container [2024-11-24 01:51:22,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:11" (2/3) ... [2024-11-24 01:51:22,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e15d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:51:22, skipping insertion in model container [2024-11-24 01:51:22,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:51:22" (3/3) ... [2024-11-24 01:51:22,925 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2024-11-24 01:51:22,942 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:51:22,943 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_harness.i that has 17 procedures, 184 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-11-24 01:51:23,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:51:23,024 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;@3c3845e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:51:23,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:51:23,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 105 states have internal predecessors, (137), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-24 01:51:23,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:51:23,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:51:23,039 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 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] [2024-11-24 01:51:23,039 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:51:23,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:51:23,044 INFO L85 PathProgramCache]: Analyzing trace with hash -406892630, now seen corresponding path program 1 times [2024-11-24 01:51:23,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:51:23,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252810214] [2024-11-24 01:51:23,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:23,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:52:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:52:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-24 01:52:54,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:52:54,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252810214] [2024-11-24 01:52:54,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252810214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:52:54,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031713103] [2024-11-24 01:52:54,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:52:54,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:52:54,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:52:54,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:52:54,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:54:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:22,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 7693 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:54:22,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:54:22,997 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-24 01:54:22,997 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:54:22,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031713103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:22,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:54:22,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-24 01:54:23,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500649535] [2024-11-24 01:54:23,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:23,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:54:23,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:23,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:54:23,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:54:23,025 INFO L87 Difference]: Start difference. First operand has 149 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 105 states have internal predecessors, (137), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 01:54:24,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:24,171 INFO L93 Difference]: Finished difference Result 298 states and 439 transitions. [2024-11-24 01:54:24,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:54:24,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2024-11-24 01:54:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:24,180 INFO L225 Difference]: With dead ends: 298 [2024-11-24 01:54:24,181 INFO L226 Difference]: Without dead ends: 142 [2024-11-24 01:54:24,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:54:24,187 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 214 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:24,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 466 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:54:24,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-24 01:54:24,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-24 01:54:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 101 states have internal predecessors, (127), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2024-11-24 01:54:24,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 198 transitions. [2024-11-24 01:54:24,255 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 198 transitions. Word has length 84 [2024-11-24 01:54:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:24,257 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 198 transitions. [2024-11-24 01:54:24,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 01:54:24,258 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 198 transitions. [2024-11-24 01:54:24,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 01:54:24,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:24,262 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 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] [2024-11-24 01:54:24,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:54:24,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:54:24,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:24,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:24,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2026965135, now seen corresponding path program 1 times [2024-11-24 01:54:24,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:24,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078456970] [2024-11-24 01:54:24,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:24,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-24 01:55:52,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:52,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078456970] [2024-11-24 01:55:52,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078456970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:52,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130719024] [2024-11-24 01:55:52,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:52,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:52,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:52,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:55:52,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:57:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:57:20,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 7698 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:57:20,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:57:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:57:21,946 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:57:21,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130719024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:57:21,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:57:21,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-24 01:57:21,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032250031] [2024-11-24 01:57:21,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:57:21,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:57:21,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:57:21,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:57:21,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:57:21,949 INFO L87 Difference]: Start difference. First operand 142 states and 198 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-24 01:57:24,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:57:24,089 INFO L93 Difference]: Finished difference Result 253 states and 355 transitions. [2024-11-24 01:57:24,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:57:24,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 86 [2024-11-24 01:57:24,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:57:24,092 INFO L225 Difference]: With dead ends: 253 [2024-11-24 01:57:24,092 INFO L226 Difference]: Without dead ends: 142 [2024-11-24 01:57:24,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:57:24,095 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 287 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:57:24,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 740 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:57:24,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-24 01:57:24,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-24 01:57:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 101 states have internal predecessors, (127), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2024-11-24 01:57:24,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2024-11-24 01:57:24,120 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 86 [2024-11-24 01:57:24,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:57:24,121 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2024-11-24 01:57:24,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-24 01:57:24,121 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2024-11-24 01:57:24,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 01:57:24,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:57:24,124 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:57:24,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:57:24,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-24 01:57:24,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:57:24,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:57:24,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1111206580, now seen corresponding path program 2 times [2024-11-24 01:57:24,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:57:24,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123509306] [2024-11-24 01:57:24,325 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:57:24,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:55,424 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:58:55,425 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:58:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-24 01:58:58,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:58:58,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123509306] [2024-11-24 01:58:58,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123509306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:58:58,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:58:58,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:58:58,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730460966] [2024-11-24 01:58:58,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:58:58,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:58:58,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:58:58,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:58:58,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:58:58,703 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-24 01:58:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:58:59,625 INFO L93 Difference]: Finished difference Result 248 states and 341 transitions. [2024-11-24 01:58:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:58:59,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 88 [2024-11-24 01:58:59,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:58:59,627 INFO L225 Difference]: With dead ends: 248 [2024-11-24 01:58:59,627 INFO L226 Difference]: Without dead ends: 142 [2024-11-24 01:58:59,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:58:59,629 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 169 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:58:59,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 982 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:58:59,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-24 01:58:59,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-24 01:58:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 101 states have internal predecessors, (127), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-24 01:58:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 193 transitions. [2024-11-24 01:58:59,645 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 193 transitions. Word has length 88 [2024-11-24 01:58:59,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:58:59,646 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 193 transitions. [2024-11-24 01:58:59,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-24 01:58:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 193 transitions. [2024-11-24 01:58:59,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 01:58:59,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:58:59,651 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2024-11-24 01:58:59,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:58:59,651 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:58:59,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:59,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1597336386, now seen corresponding path program 1 times [2024-11-24 01:58:59,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:58:59,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407102476] [2024-11-24 01:58:59,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:59,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-24 02:00:33,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:33,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407102476] [2024-11-24 02:00:33,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407102476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:33,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:33,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:00:33,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517092113] [2024-11-24 02:00:33,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:33,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 02:00:33,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:33,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 02:00:33,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:00:33,676 INFO L87 Difference]: Start difference. First operand 142 states and 193 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 02:00:34,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:34,134 INFO L93 Difference]: Finished difference Result 154 states and 212 transitions. [2024-11-24 02:00:34,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:00:34,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2024-11-24 02:00:34,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:34,137 INFO L225 Difference]: With dead ends: 154 [2024-11-24 02:00:34,137 INFO L226 Difference]: Without dead ends: 152 [2024-11-24 02:00:34,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:00:34,138 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 3 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:34,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1292 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:00:34,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-24 02:00:34,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2024-11-24 02:00:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 104 states have (on average 1.2788461538461537) internal successors, (133), 108 states have internal predecessors, (133), 35 states have call successors, (35), 10 states have call predecessors, (35), 11 states have return successors, (41), 32 states have call predecessors, (41), 32 states have call successors, (41) [2024-11-24 02:00:34,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 209 transitions. [2024-11-24 02:00:34,164 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 209 transitions. Word has length 92 [2024-11-24 02:00:34,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:34,165 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 209 transitions. [2024-11-24 02:00:34,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 02:00:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 209 transitions. [2024-11-24 02:00:34,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 02:00:34,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:34,167 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2024-11-24 02:00:34,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:00:34,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:34,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:34,168 INFO L85 PathProgramCache]: Analyzing trace with hash -372573946, now seen corresponding path program 1 times [2024-11-24 02:00:34,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:34,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224982397] [2024-11-24 02:00:34,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:34,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:18,576 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-24 02:02:18,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:18,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224982397] [2024-11-24 02:02:18,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224982397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:02:18,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148368358] [2024-11-24 02:02:18,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:18,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:02:18,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:18,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:02:18,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f7a71a-ea72-45a7-bc00-45a9f9c75310/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process