./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_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_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/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_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/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_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/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 ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:43:45,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:43:45,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:43:45,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:43:45,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:43:45,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:43:45,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:43:45,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:43:45,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:43:45,400 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:43:45,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:43:45,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:43:45,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:43:45,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:43:45,401 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:43:45,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:43:45,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:43:45,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:43:45,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:43:45,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:43:45,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:43:45,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:43:45,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:43:45,402 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:43:45,402 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:43:45,402 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:43:45,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:43:45,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:43:45,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:43:45,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:43:45,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:43:45,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:43:45,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:43:45,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:43:45,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:43:45,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:43:45,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:43:45,404 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:43:45,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:43:45,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:43:45,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:43:45,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:43:45,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:43:45,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:43:45,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:43:45,407 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_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/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 -> ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 [2024-11-28 02:43:45,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:43:45,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:43:45,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:43:45,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:43:45,720 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:43:45,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2024-11-28 02:43:48,603 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/data/f9fbf59fc/de2c2940760145c4aa07e40826e01f35/FLAG98fdbd8d5 [2024-11-28 02:43:49,257 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:43:49,257 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2024-11-28 02:43:49,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/data/f9fbf59fc/de2c2940760145c4aa07e40826e01f35/FLAG98fdbd8d5 [2024-11-28 02:43:49,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/data/f9fbf59fc/de2c2940760145c4aa07e40826e01f35 [2024-11-28 02:43:49,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:43:49,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:43:49,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:43:49,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:43:49,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:43:49,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:43:49" (1/1) ... [2024-11-28 02:43:49,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122fc9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:49, skipping insertion in model container [2024-11-28 02:43:49,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:43:49" (1/1) ... [2024-11-28 02:43:49,462 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:43:49,774 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_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2024-11-28 02:43:49,783 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_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2024-11-28 02:43:50,742 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,743 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,744 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,744 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,746 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,761 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,762 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,764 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,765 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,767 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,768 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,769 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:50,769 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,377 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,386 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:43:51,522 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:43:51,535 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_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2024-11-28 02:43:51,536 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_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2024-11-28 02:43:51,600 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,600 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,600 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,601 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,601 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,608 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,608 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,609 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,610 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,612 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,612 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,709 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,719 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 02:43:51,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2024-11-28 02:43:51,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:43:52,046 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:43:52,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52 WrapperNode [2024-11-28 02:43:52,047 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:43:52,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:43:52,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:43:52,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:43:52,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,174 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 13, statements flattened = 898 [2024-11-28 02:43:52,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:43:52,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:43:52,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:43:52,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:43:52,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,196 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,305 INFO L175 MemorySlicer]: Split 334 memory accesses to 6 slices as follows [238, 2, 6, 74, 6, 8]. 71 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 10, 1, 5]. The 241 writes are split as follows [232, 0, 2, 6, 1, 0]. [2024-11-28 02:43:52,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,360 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,407 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:43:52,408 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:43:52,408 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:43:52,408 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:43:52,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (1/1) ... [2024-11-28 02:43:52,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:43:52,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:52,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:43:52,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:43:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:43:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-28 02:43:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-28 02:43:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-28 02:43:52,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-28 02:43:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 02:43:52,488 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 02:43:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-28 02:43:52,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-28 02:43:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 02:43:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 02:43:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 02:43:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 02:43:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 02:43:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 02:43:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:43:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:43:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:43:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:43:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:43:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:43:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 02:43:52,490 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 02:43:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:43:52,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:43:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:43:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:43:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:43:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:43:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:43:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:43:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 02:43:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 02:43:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-28 02:43:52,491 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-28 02:43:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:43:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:43:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 02:43:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 02:43:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 02:43:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 02:43:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-28 02:43:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-28 02:43:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 02:43:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 02:43:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 02:43:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 02:43:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 02:43:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 02:43:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 02:43:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 02:43:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-28 02:43:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-28 02:43:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-28 02:43:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-28 02:43:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-28 02:43:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-28 02:43:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:43:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:43:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-28 02:43:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-28 02:43:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-28 02:43:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-28 02:43:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-28 02:43:52,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 02:43:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 02:43:52,496 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 02:43:52,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-28 02:43:52,496 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-28 02:43:52,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:43:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:43:52,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:43:52,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:43:52,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:43:52,854 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:43:52,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:43:59,477 INFO L? ?]: Removed 190 outVars from TransFormulas that were not future-live. [2024-11-28 02:43:59,478 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:43:59,500 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:43:59,501 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:43:59,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:43:59 BoogieIcfgContainer [2024-11-28 02:43:59,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:43:59,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:43:59,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:43:59,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:43:59,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:43:49" (1/3) ... [2024-11-28 02:43:59,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f43dad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:43:59, skipping insertion in model container [2024-11-28 02:43:59,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:52" (2/3) ... [2024-11-28 02:43:59,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f43dad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:43:59, skipping insertion in model container [2024-11-28 02:43:59,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:43:59" (3/3) ... [2024-11-28 02:43:59,513 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_push_back_harness.i [2024-11-28 02:43:59,530 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:43:59,531 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_push_back_harness.i that has 23 procedures, 304 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:43:59,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:43:59,627 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;@10bc874e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:43:59,628 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:43:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 304 states, 177 states have (on average 1.2203389830508475) internal successors, (216), 178 states have internal predecessors, (216), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-28 02:43:59,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:43:59,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:59,650 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:59,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:43:59,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash 923240142, now seen corresponding path program 1 times [2024-11-28 02:43:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:43:59,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863536821] [2024-11-28 02:43:59,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:59,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:07,340 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-28 02:44:07,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:07,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863536821] [2024-11-28 02:44:07,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863536821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:44:07,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098976588] [2024-11-28 02:44:07,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:07,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:07,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:07,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:07,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:44:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:13,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:44:13,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-28 02:44:14,002 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:14,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098976588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:14,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:44:14,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:44:14,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211206078] [2024-11-28 02:44:14,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:14,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:44:14,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:14,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:44:14,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:44:14,038 INFO L87 Difference]: Start difference. First operand has 304 states, 177 states have (on average 1.2203389830508475) internal successors, (216), 178 states have internal predecessors, (216), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-28 02:44:14,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:14,199 INFO L93 Difference]: Finished difference Result 601 states and 896 transitions. [2024-11-28 02:44:14,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:44:14,201 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 135 [2024-11-28 02:44:14,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:14,211 INFO L225 Difference]: With dead ends: 601 [2024-11-28 02:44:14,212 INFO L226 Difference]: Without dead ends: 299 [2024-11-28 02:44:14,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 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 02:44:14,221 INFO L435 NwaCegarLoop]: 420 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, 420 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 02:44:14,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:14,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-28 02:44:14,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-11-28 02:44:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 173 states have (on average 1.2138728323699421) internal successors, (210), 174 states have internal predecessors, (210), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-28 02:44:14,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 415 transitions. [2024-11-28 02:44:14,318 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 415 transitions. Word has length 135 [2024-11-28 02:44:14,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:14,321 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 415 transitions. [2024-11-28 02:44:14,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-28 02:44:14,322 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 415 transitions. [2024-11-28 02:44:14,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:44:14,328 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:14,329 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:14,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:44:14,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:14,530 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:14,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:14,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1016118612, now seen corresponding path program 1 times [2024-11-28 02:44:14,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:14,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097333708] [2024-11-28 02:44:14,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:14,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-28 02:44:21,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:21,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097333708] [2024-11-28 02:44:21,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097333708] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:44:21,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529301653] [2024-11-28 02:44:21,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:21,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:21,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:21,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:21,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:44:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:27,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:44:27,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:28,220 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 02:44:28,220 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:28,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529301653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:28,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:44:28,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 02:44:28,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655980647] [2024-11-28 02:44:28,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:28,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:44:28,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:28,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:44:28,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:44:28,223 INFO L87 Difference]: Start difference. First operand 299 states and 415 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 02:44:31,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:31,285 INFO L93 Difference]: Finished difference Result 574 states and 817 transitions. [2024-11-28 02:44:31,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:44:31,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 135 [2024-11-28 02:44:31,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:31,291 INFO L225 Difference]: With dead ends: 574 [2024-11-28 02:44:31,291 INFO L226 Difference]: Without dead ends: 301 [2024-11-28 02:44:31,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:44:31,293 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 453 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:31,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1148 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 02:44:31,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-28 02:44:31,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2024-11-28 02:44:31,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 174 states have (on average 1.2126436781609196) internal successors, (211), 176 states have internal predecessors, (211), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (121), 102 states have call predecessors, (121), 102 states have call successors, (121) [2024-11-28 02:44:31,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 435 transitions. [2024-11-28 02:44:31,335 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 435 transitions. Word has length 135 [2024-11-28 02:44:31,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:31,336 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 435 transitions. [2024-11-28 02:44:31,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 02:44:31,336 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 435 transitions. [2024-11-28 02:44:31,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 02:44:31,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:31,339 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:31,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:44:31,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:31,540 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:31,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:31,540 INFO L85 PathProgramCache]: Analyzing trace with hash 419431368, now seen corresponding path program 1 times [2024-11-28 02:44:31,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:31,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854912709] [2024-11-28 02:44:31,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:31,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-28 02:44:39,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:39,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854912709] [2024-11-28 02:44:39,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854912709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:44:39,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191263283] [2024-11-28 02:44:39,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:39,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:39,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:39,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:39,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:44:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:45,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 4529 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:44:45,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:46,052 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-28 02:44:46,052 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:46,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191263283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:46,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:44:46,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-28 02:44:46,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495013717] [2024-11-28 02:44:46,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:46,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:44:46,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:46,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:44:46,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:44:46,054 INFO L87 Difference]: Start difference. First operand 301 states and 435 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:44:49,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:49,762 INFO L93 Difference]: Finished difference Result 550 states and 795 transitions. [2024-11-28 02:44:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:44:49,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 165 [2024-11-28 02:44:49,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:49,767 INFO L225 Difference]: With dead ends: 550 [2024-11-28 02:44:49,767 INFO L226 Difference]: Without dead ends: 301 [2024-11-28 02:44:49,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:44:49,770 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 516 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:49,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1391 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 02:44:49,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-28 02:44:49,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2024-11-28 02:44:49,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 174 states have (on average 1.2126436781609196) internal successors, (211), 176 states have internal predecessors, (211), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (118), 102 states have call predecessors, (118), 102 states have call successors, (118) [2024-11-28 02:44:49,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 432 transitions. [2024-11-28 02:44:49,801 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 432 transitions. Word has length 165 [2024-11-28 02:44:49,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:49,802 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 432 transitions. [2024-11-28 02:44:49,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:44:49,802 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 432 transitions. [2024-11-28 02:44:49,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-28 02:44:49,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:49,805 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:49,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:44:50,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:50,006 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:50,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:50,006 INFO L85 PathProgramCache]: Analyzing trace with hash 499468725, now seen corresponding path program 2 times [2024-11-28 02:44:50,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:50,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228503465] [2024-11-28 02:44:50,006 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:44:50,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:55,319 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:44:55,320 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:44:58,431 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-28 02:44:58,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:58,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228503465] [2024-11-28 02:44:58,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228503465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:44:58,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459827223] [2024-11-28 02:44:58,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:44:58,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:58,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:58,435 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:58,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73eeaa2f-e731-486f-a2a3-9977e7dfcdf5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process