./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_cat_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_cat_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 19d158b21d92d4655e874a970c31120f676a50dd3149e2b62ecc8e8738919e4f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:54:33,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:54:33,468 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:54:33,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:54:33,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:54:33,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:54:33,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:54:33,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:54:33,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:54:33,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:54:33,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:54:33,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:54:33,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:54:33,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:54:33,525 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:54:33,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:54:33,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:54:33,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:54:33,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:54:33,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:54:33,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:54:33,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:54:33,525 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:54:33,526 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:54:33,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:54:33,527 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:54:33,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:54:33,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:54:33,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:54:33,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:54:33,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:54:33,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:54:33,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:54:33,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:54:33,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:54:33,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:54:33,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:54:33,529 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:54:33,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:54:33,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:54:33,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:54:33,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:54:33,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:54:33,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:54:33,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:54:33,529 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_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19d158b21d92d4655e874a970c31120f676a50dd3149e2b62ecc8e8738919e4f [2024-11-28 02:54:33,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:54:33,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:54:33,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:54:33,863 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:54:33,864 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:54:33,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_cat_harness.i [2024-11-28 02:54:37,387 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/data/d18ed7238/da76033f69bd4f128be8185177e25388/FLAG52ef3248d [2024-11-28 02:54:38,345 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:54:38,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/sv-benchmarks/c/aws-c-common/aws_byte_buf_cat_harness.i [2024-11-28 02:54:38,422 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/data/d18ed7238/da76033f69bd4f128be8185177e25388/FLAG52ef3248d [2024-11-28 02:54:38,453 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/data/d18ed7238/da76033f69bd4f128be8185177e25388 [2024-11-28 02:54:38,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:54:38,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:54:38,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:54:38,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:54:38,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:54:38,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:38" (1/1) ... [2024-11-28 02:54:38,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278e3d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:38, skipping insertion in model container [2024-11-28 02:54:38,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:38" (1/1) ... [2024-11-28 02:54:38,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:54:39,024 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_aba87da1-95ef-4838-b301-ce9dc572c3f2/sv-benchmarks/c/aws-c-common/aws_byte_buf_cat_harness.i[4490,4503] [2024-11-28 02:54:39,034 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_aba87da1-95ef-4838-b301-ce9dc572c3f2/sv-benchmarks/c/aws-c-common/aws_byte_buf_cat_harness.i[4550,4563] [2024-11-28 02:54:40,354 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:40,355 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:40,356 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:40,357 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:40,358 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:40,377 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:40,378 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:40,381 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:40,382 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,322 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,323 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:54:41,559 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:54:41,581 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_aba87da1-95ef-4838-b301-ce9dc572c3f2/sv-benchmarks/c/aws-c-common/aws_byte_buf_cat_harness.i[4490,4503] [2024-11-28 02:54:41,581 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_aba87da1-95ef-4838-b301-ce9dc572c3f2/sv-benchmarks/c/aws-c-common/aws_byte_buf_cat_harness.i[4550,4563] [2024-11-28 02:54:41,650 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,651 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,651 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,651 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,652 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,662 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,663 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,665 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,666 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-28 02:54:41,844 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,844 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:54:41,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-28 02:54:41,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:54:42,213 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:54:42,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42 WrapperNode [2024-11-28 02:54:42,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:54:42,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:54:42,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:54:42,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:54:42,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,452 INFO L138 Inliner]: procedures = 680, calls = 2722, calls flagged for inlining = 59, calls inlined = 8, statements flattened = 1085 [2024-11-28 02:54:42,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:54:42,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:54:42,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:54:42,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:54:42,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,476 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,573 INFO L175 MemorySlicer]: Split 627 memory accesses to 8 slices as follows [246, 257, 2, 4, 87, 8, 17, 6]. 41 percent of accesses are in the largest equivalence class. The 47 initializations are split as follows [11, 0, 2, 0, 28, 4, 2, 0]. The 500 writes are split as follows [233, 257, 0, 3, 3, 0, 2, 2]. [2024-11-28 02:54:42,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,650 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:54:42,702 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:54:42,703 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:54:42,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:54:42,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (1/1) ... [2024-11-28 02:54:42,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:54:42,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:42,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:54:42,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:54:42,780 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-28 02:54:42,781 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-28 02:54:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 02:54:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-11-28 02:54:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:54:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-28 02:54:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-28 02:54:42,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-28 02:54:42,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-28 02:54:42,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-28 02:54:42,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-28 02:54:42,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-28 02:54:42,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-28 02:54:42,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-28 02:54:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-28 02:54:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 02:54:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 02:54:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:54:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:54:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:54:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:54:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-28 02:54:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-28 02:54:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:54:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 02:54:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 02:54:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 02:54:42,792 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 02:54:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 02:54:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:54:42,795 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:54:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:54:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:54:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:54:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:54:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:54:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:54:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:54:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 02:54:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 02:54:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 02:54:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 02:54:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 02:54:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 02:54:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 02:54:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 02:54:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 02:54:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 02:54:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 02:54:42,797 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 02:54:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2024-11-28 02:54:42,797 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2024-11-28 02:54:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:54:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:54:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-11-28 02:54:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2024-11-28 02:54:42,799 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2024-11-28 02:54:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:54:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:54:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:54:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:54:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:54:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:54:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 02:54:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 02:54:43,403 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:54:43,406 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:54:54,857 INFO L? ?]: Removed 229 outVars from TransFormulas that were not future-live. [2024-11-28 02:54:54,857 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:54:54,873 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:54:54,874 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:54:54,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:54 BoogieIcfgContainer [2024-11-28 02:54:54,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:54:54,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:54:54,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:54:54,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:54:54,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:54:38" (1/3) ... [2024-11-28 02:54:54,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542a5a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:54, skipping insertion in model container [2024-11-28 02:54:54,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:42" (2/3) ... [2024-11-28 02:54:54,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542a5a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:54, skipping insertion in model container [2024-11-28 02:54:54,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:54" (3/3) ... [2024-11-28 02:54:54,890 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_cat_harness.i [2024-11-28 02:54:54,914 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:54:54,916 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_cat_harness.i that has 22 procedures, 246 locations, 1 initial locations, 17 loop locations, and 1 error locations. [2024-11-28 02:54:55,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:54:55,021 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;@c0a86f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:54:55,021 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:54:55,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 123 states have (on average 1.2276422764227641) internal successors, (151), 124 states have internal predecessors, (151), 72 states have call successors, (72), 14 states have call predecessors, (72), 14 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 02:54:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-28 02:54:55,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:55,049 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:55,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:55,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:55,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1367617315, now seen corresponding path program 1 times [2024-11-28 02:54:55,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:55,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053092888] [2024-11-28 02:54:55,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:55,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-11-28 02:56:37,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:37,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053092888] [2024-11-28 02:56:37,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053092888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:37,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210231953] [2024-11-28 02:56:37,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:37,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:37,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:37,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:37,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:58:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:24,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 8435 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:58:24,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:24,544 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-28 02:58:24,544 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:58:24,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210231953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:24,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:58:24,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:58:24,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254003811] [2024-11-28 02:58:24,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:24,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:58:24,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:24,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:58:24,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:58:24,583 INFO L87 Difference]: Start difference. First operand has 211 states, 123 states have (on average 1.2276422764227641) internal successors, (151), 124 states have internal predecessors, (151), 72 states have call successors, (72), 14 states have call predecessors, (72), 14 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 02:58:24,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:24,660 INFO L93 Difference]: Finished difference Result 418 states and 630 transitions. [2024-11-28 02:58:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:58:24,662 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 212 [2024-11-28 02:58:24,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:24,671 INFO L225 Difference]: With dead ends: 418 [2024-11-28 02:58:24,671 INFO L226 Difference]: Without dead ends: 206 [2024-11-28 02:58:24,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:58:24,682 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:24,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:58:24,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-28 02:58:24,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-11-28 02:58:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 120 states have internal predecessors, (144), 72 states have call successors, (72), 14 states have call predecessors, (72), 14 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 02:58:24,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 287 transitions. [2024-11-28 02:58:24,753 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 287 transitions. Word has length 212 [2024-11-28 02:58:24,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:24,755 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 287 transitions. [2024-11-28 02:58:24,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 02:58:24,756 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 287 transitions. [2024-11-28 02:58:24,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-28 02:58:24,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:24,762 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:24,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:58:24,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:58:24,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:24,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:24,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1541803161, now seen corresponding path program 1 times [2024-11-28 02:58:24,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:24,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391609363] [2024-11-28 02:58:24,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:24,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-28 03:00:15,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:15,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391609363] [2024-11-28 03:00:15,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391609363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:00:15,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872511558] [2024-11-28 03:00:15,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:15,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:00:15,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:00:15,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:00:15,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:01:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:41,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 8435 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:01:41,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:01:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-28 03:01:42,234 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:01:42,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872511558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:01:42,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:01:42,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 03:01:42,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911943862] [2024-11-28 03:01:42,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:01:42,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:01:42,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:42,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:01:42,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:01:42,238 INFO L87 Difference]: Start difference. First operand 206 states and 287 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-28 03:01:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:44,248 INFO L93 Difference]: Finished difference Result 408 states and 580 transitions. [2024-11-28 03:01:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:01:44,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 212 [2024-11-28 03:01:44,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:44,253 INFO L225 Difference]: With dead ends: 408 [2024-11-28 03:01:44,254 INFO L226 Difference]: Without dead ends: 209 [2024-11-28 03:01:44,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:01:44,256 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 273 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:44,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 586 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:01:44,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-28 03:01:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-28 03:01:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.2066115702479339) internal successors, (146), 123 states have internal predecessors, (146), 72 states have call successors, (72), 14 states have call predecessors, (72), 15 states have return successors, (84), 71 states have call predecessors, (84), 71 states have call successors, (84) [2024-11-28 03:01:44,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 302 transitions. [2024-11-28 03:01:44,290 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 302 transitions. Word has length 212 [2024-11-28 03:01:44,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:44,291 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 302 transitions. [2024-11-28 03:01:44,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-28 03:01:44,291 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 302 transitions. [2024-11-28 03:01:44,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 03:01:44,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:44,302 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:44,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:01:44,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-28 03:01:44,503 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:01:44,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:44,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1496334610, now seen corresponding path program 1 times [2024-11-28 03:01:44,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:44,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353128149] [2024-11-28 03:01:44,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:44,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-28 03:03:16,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:16,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353128149] [2024-11-28 03:03:16,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353128149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:16,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190650393] [2024-11-28 03:03:16,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:16,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:16,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:16,650 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:16,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:04:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:43,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 8452 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:04:43,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:04:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-28 03:04:44,311 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:04:44,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190650393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:44,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:04:44,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 03:04:44,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407625104] [2024-11-28 03:04:44,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:44,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:04:44,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:44,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:04:44,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:04:44,318 INFO L87 Difference]: Start difference. First operand 209 states and 302 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-28 03:04:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:46,240 INFO L93 Difference]: Finished difference Result 404 states and 580 transitions. [2024-11-28 03:04:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:04:46,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 218 [2024-11-28 03:04:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:46,249 INFO L225 Difference]: With dead ends: 404 [2024-11-28 03:04:46,249 INFO L226 Difference]: Without dead ends: 209 [2024-11-28 03:04:46,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:04:46,251 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 271 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:46,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 586 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:04:46,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-28 03:04:46,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-28 03:04:46,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.2066115702479339) internal successors, (146), 123 states have internal predecessors, (146), 72 states have call successors, (72), 14 states have call predecessors, (72), 15 states have return successors, (82), 71 states have call predecessors, (82), 71 states have call successors, (82) [2024-11-28 03:04:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 300 transitions. [2024-11-28 03:04:46,299 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 300 transitions. Word has length 218 [2024-11-28 03:04:46,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:46,300 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 300 transitions. [2024-11-28 03:04:46,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-28 03:04:46,301 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 300 transitions. [2024-11-28 03:04:46,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-28 03:04:46,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:46,305 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:46,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:04:46,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:04:46,506 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:46,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash -984885063, now seen corresponding path program 2 times [2024-11-28 03:04:46,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:46,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554771614] [2024-11-28 03:04:46,507 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:04:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:10,054 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:06:10,054 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:06:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-28 03:06:12,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:12,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554771614] [2024-11-28 03:06:12,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554771614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:12,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741773096] [2024-11-28 03:06:12,900 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:06:12,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:12,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:12,920 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:12,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aba87da1-95ef-4838-b301-ce9dc572c3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process