./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4877cca40595980101fbb98f82b1b3f363016b57821c488c5d2a98ecc206f92 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:44:02,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:44:02,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:44:02,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:44:02,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:44:03,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:44:03,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:44:03,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:44:03,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:44:03,011 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:44:03,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:44:03,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:44:03,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:44:03,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:44:03,012 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:44:03,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:44:03,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:44:03,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:44:03,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:44:03,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:44:03,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:44:03,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:44:03,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:44:03,013 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:44:03,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:44:03,013 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:44:03,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:44:03,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:44:03,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:44:03,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:44:03,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:44:03,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:44:03,014 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:44:03,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:44:03,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:44:03,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:44:03,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:44:03,015 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:44:03,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:44:03,015 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:44:03,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:44:03,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:44:03,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:44:03,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:44:03,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:44:03,015 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_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4877cca40595980101fbb98f82b1b3f363016b57821c488c5d2a98ecc206f92 [2024-11-24 01:44:03,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:44:03,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:44:03,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:44:03,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:44:03,325 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:44:03,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2024-11-24 01:44:06,245 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/data/223fe60dc/f00412dd217641f1af5b925a14c5dd6e/FLAG3c64fbc6f [2024-11-24 01:44:06,957 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:44:06,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2024-11-24 01:44:07,019 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/data/223fe60dc/f00412dd217641f1af5b925a14c5dd6e/FLAG3c64fbc6f [2024-11-24 01:44:07,041 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/data/223fe60dc/f00412dd217641f1af5b925a14c5dd6e [2024-11-24 01:44:07,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:44:07,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:44:07,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:44:07,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:44:07,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:44:07,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:44:07" (1/1) ... [2024-11-24 01:44:07,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62380cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:07, skipping insertion in model container [2024-11-24 01:44:07,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:44:07" (1/1) ... [2024-11-24 01:44:07,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:44:07,446 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_763820a4-48b7-40c5-b5d4-8b5178fdf945/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2024-11-24 01:44:07,454 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_763820a4-48b7-40c5-b5d4-8b5178fdf945/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2024-11-24 01:44:08,454 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:08,455 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:08,455 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:08,456 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:08,457 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:08,475 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:08,475 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:08,478 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:08,478 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,404 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,404 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:44:09,539 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:44:09,561 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_763820a4-48b7-40c5-b5d4-8b5178fdf945/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2024-11-24 01:44:09,561 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_763820a4-48b7-40c5-b5d4-8b5178fdf945/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2024-11-24 01:44:09,625 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,628 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,628 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,629 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,629 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,642 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,643 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,645 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,646 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-24 01:44:09,847 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,847 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 01:44:09,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-24 01:44:09,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:44:10,105 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:44:10,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10 WrapperNode [2024-11-24 01:44:10,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:44:10,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:44:10,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:44:10,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:44:10,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,322 INFO L138 Inliner]: procedures = 680, calls = 2648, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 880 [2024-11-24 01:44:10,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:44:10,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:44:10,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:44:10,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:44:10,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,343 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,449 INFO L175 MemorySlicer]: Split 550 memory accesses to 7 slices as follows [2, 6, 257, 238, 38, 4, 5]. 47 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 0, 6, 4, 0, 5]. The 494 writes are split as follows [0, 2, 257, 232, 3, 0, 0]. [2024-11-24 01:44:10,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,511 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:44:10,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:44:10,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:44:10,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:44:10,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (1/1) ... [2024-11-24 01:44:10,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:44:10,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:44:10,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:44:10,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:44:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-24 01:44:10,646 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-24 01:44:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:44:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-24 01:44:10,646 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-24 01:44:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:44:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:44:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 01:44:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 01:44:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-11-24 01:44:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-11-24 01:44:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 01:44:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-24 01:44:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:44:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:44:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-24 01:44:10,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-24 01:44:10,649 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 01:44:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:44:10,652 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:44:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:44:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:44:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:44:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:44:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:44:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:44:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:44:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:44:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-24 01:44:10,654 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-24 01:44:10,654 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:44:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-24 01:44:10,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:44:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:44:10,981 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:44:10,984 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:44:19,897 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-24 01:44:19,897 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:44:19,908 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:44:19,908 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 01:44:19,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:44:19 BoogieIcfgContainer [2024-11-24 01:44:19,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:44:19,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:44:19,911 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:44:19,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:44:19,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:44:07" (1/3) ... [2024-11-24 01:44:19,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc7e3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:44:19, skipping insertion in model container [2024-11-24 01:44:19,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:44:10" (2/3) ... [2024-11-24 01:44:19,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc7e3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:44:19, skipping insertion in model container [2024-11-24 01:44:19,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:44:19" (3/3) ... [2024-11-24 01:44:19,918 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness.i [2024-11-24 01:44:19,935 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:44:19,937 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_eq_harness.i that has 12 procedures, 134 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 01:44:19,995 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:44:20,007 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;@53bdf4d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:44:20,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:44:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:44:20,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 01:44:20,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:20,030 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:44:20,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:20,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash -239771141, now seen corresponding path program 1 times [2024-11-24 01:44:20,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:20,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840333917] [2024-11-24 01:44:20,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:20,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:45:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:45:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-24 01:45:49,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:45:49,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840333917] [2024-11-24 01:45:49,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840333917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:45:49,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098850223] [2024-11-24 01:45:49,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:45:49,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:45:49,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:45:49,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:45:49,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:47:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:23,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 7758 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:47:23,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:47:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-24 01:47:23,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:47:23,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098850223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:23,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:47:23,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:47:23,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524239892] [2024-11-24 01:47:23,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:23,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:47:23,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:23,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:47:23,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:47:23,652 INFO L87 Difference]: Start difference. First operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:47:23,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:23,700 INFO L93 Difference]: Finished difference Result 264 states and 381 transitions. [2024-11-24 01:47:23,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:47:23,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 102 [2024-11-24 01:47:23,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:23,713 INFO L225 Difference]: With dead ends: 264 [2024-11-24 01:47:23,714 INFO L226 Difference]: Without dead ends: 128 [2024-11-24 01:47:23,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:47:23,722 INFO L435 NwaCegarLoop]: 178 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, 178 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 [2024-11-24 01:47:23,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:47:23,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-24 01:47:23,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-24 01:47:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 77 states have internal predecessors, (92), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 01:47:23,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2024-11-24 01:47:23,777 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 102 [2024-11-24 01:47:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:23,779 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2024-11-24 01:47:23,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:47:23,779 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2024-11-24 01:47:23,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 01:47:23,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:23,783 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:23,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:47:23,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:47:23,984 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:23,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:23,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1414407603, now seen corresponding path program 1 times [2024-11-24 01:47:23,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:23,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574391084] [2024-11-24 01:47:23,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:23,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:54,583 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-24 01:48:54,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:54,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574391084] [2024-11-24 01:48:54,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574391084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:48:54,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332498853] [2024-11-24 01:48:54,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:54,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:48:54,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:48:54,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:48:54,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:50:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:25,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 7758 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:50:25,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-24 01:50:26,248 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:50:26,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332498853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:26,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:50:26,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-24 01:50:26,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710611230] [2024-11-24 01:50:26,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:26,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:50:26,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:50:26,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:50:26,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:50:26,250 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:50:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:27,478 INFO L93 Difference]: Finished difference Result 252 states and 341 transitions. [2024-11-24 01:50:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:50:27,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 102 [2024-11-24 01:50:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:27,481 INFO L225 Difference]: With dead ends: 252 [2024-11-24 01:50:27,482 INFO L226 Difference]: Without dead ends: 131 [2024-11-24 01:50:27,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:50:27,483 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 171 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:27,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 343 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:50:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-24 01:50:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-11-24 01:50:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 40 states have call successors, (40), 11 states have call predecessors, (40), 12 states have return successors, (45), 39 states have call predecessors, (45), 39 states have call successors, (45) [2024-11-24 01:50:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 179 transitions. [2024-11-24 01:50:27,502 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 179 transitions. Word has length 102 [2024-11-24 01:50:27,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:27,503 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 179 transitions. [2024-11-24 01:50:27,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:50:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 179 transitions. [2024-11-24 01:50:27,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 01:50:27,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:27,505 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:27,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:50:27,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:50:27,706 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:27,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:27,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1203101912, now seen corresponding path program 1 times [2024-11-24 01:50:27,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:50:27,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826295790] [2024-11-24 01:50:27,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:27,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:51:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-24 01:51:54,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:51:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826295790] [2024-11-24 01:51:54,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826295790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:51:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939749319] [2024-11-24 01:51:54,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:54,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:51:54,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:51:54,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:51:54,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:53:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:53:21,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 7763 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:53:21,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:53:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-24 01:53:22,576 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:53:22,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939749319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:53:22,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:53:22,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-24 01:53:22,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082640965] [2024-11-24 01:53:22,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:53:22,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:53:22,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:53:22,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:53:22,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:53:22,580 INFO L87 Difference]: Start difference. First operand 131 states and 179 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-24 01:53:24,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:53:24,354 INFO L93 Difference]: Finished difference Result 212 states and 290 transitions. [2024-11-24 01:53:24,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:53:24,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 104 [2024-11-24 01:53:24,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:53:24,356 INFO L225 Difference]: With dead ends: 212 [2024-11-24 01:53:24,356 INFO L226 Difference]: Without dead ends: 131 [2024-11-24 01:53:24,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:53:24,361 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 172 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:53:24,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 577 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:53:24,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-24 01:53:24,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-11-24 01:53:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 40 states have call successors, (40), 11 states have call predecessors, (40), 12 states have return successors, (43), 39 states have call predecessors, (43), 39 states have call successors, (43) [2024-11-24 01:53:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 177 transitions. [2024-11-24 01:53:24,377 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 177 transitions. Word has length 104 [2024-11-24 01:53:24,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:53:24,378 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 177 transitions. [2024-11-24 01:53:24,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-24 01:53:24,378 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 177 transitions. [2024-11-24 01:53:24,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 01:53:24,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:53:24,380 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:53:24,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:53:24,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:53:24,581 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:53:24,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:53:24,581 INFO L85 PathProgramCache]: Analyzing trace with hash -261971038, now seen corresponding path program 2 times [2024-11-24 01:53:24,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:53:24,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467236901] [2024-11-24 01:53:24,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:53:24,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:52,806 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:54:52,807 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:54:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-24 01:54:59,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:59,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467236901] [2024-11-24 01:54:59,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467236901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:59,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:59,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:54:59,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943594391] [2024-11-24 01:54:59,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:59,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:54:59,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:59,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:54:59,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:54:59,190 INFO L87 Difference]: Start difference. First operand 131 states and 177 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 01:54:59,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:59,721 INFO L93 Difference]: Finished difference Result 143 states and 196 transitions. [2024-11-24 01:54:59,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:54:59,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-24 01:54:59,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:59,725 INFO L225 Difference]: With dead ends: 143 [2024-11-24 01:54:59,725 INFO L226 Difference]: Without dead ends: 141 [2024-11-24 01:54:59,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:54:59,727 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 3 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:59,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1183 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:54:59,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-24 01:54:59,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2024-11-24 01:54:59,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 87 states have internal predecessors, (100), 41 states have call successors, (41), 12 states have call predecessors, (41), 14 states have return successors, (52), 40 states have call predecessors, (52), 40 states have call successors, (52) [2024-11-24 01:54:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2024-11-24 01:54:59,750 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 108 [2024-11-24 01:54:59,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:59,750 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2024-11-24 01:54:59,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 01:54:59,751 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2024-11-24 01:54:59,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 01:54:59,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:59,753 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 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] [2024-11-24 01:54:59,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:54:59,754 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:59,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:59,754 INFO L85 PathProgramCache]: Analyzing trace with hash 751320298, now seen corresponding path program 1 times [2024-11-24 01:54:59,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:59,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33162395] [2024-11-24 01:54:59,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:56:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:38,664 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-24 01:56:38,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:56:38,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33162395] [2024-11-24 01:56:38,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33162395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:56:38,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791738411] [2024-11-24 01:56:38,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:38,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:56:38,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:56:38,668 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:56:38,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:58:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:28,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 7785 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:58:28,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 01:58:29,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:58:29,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791738411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:58:29,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:58:29,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-24 01:58:29,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716010500] [2024-11-24 01:58:29,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:58:29,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:58:29,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:58:29,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:58:29,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:58:29,809 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-24 01:58:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:58:31,490 INFO L93 Difference]: Finished difference Result 245 states and 337 transitions. [2024-11-24 01:58:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:58:31,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 112 [2024-11-24 01:58:31,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:58:31,492 INFO L225 Difference]: With dead ends: 245 [2024-11-24 01:58:31,493 INFO L226 Difference]: Without dead ends: 137 [2024-11-24 01:58:31,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:58:31,494 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 171 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:58:31,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 464 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:58:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-24 01:58:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-24 01:58:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 84 states have internal predecessors, (97), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (48), 40 states have call predecessors, (48), 40 states have call successors, (48) [2024-11-24 01:58:31,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 186 transitions. [2024-11-24 01:58:31,525 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 186 transitions. Word has length 112 [2024-11-24 01:58:31,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:58:31,525 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 186 transitions. [2024-11-24 01:58:31,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-24 01:58:31,526 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 186 transitions. [2024-11-24 01:58:31,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 01:58:31,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:58:31,528 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:58:31,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:58:31,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_763820a4-48b7-40c5-b5d4-8b5178fdf945/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:58:31,729 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:58:31,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:31,729 INFO L85 PathProgramCache]: Analyzing trace with hash -262933041, now seen corresponding path program 1 times [2024-11-24 01:58:31,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:58:31,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485047256] [2024-11-24 01:58:31,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:31,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms