./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/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_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/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_07ebfb0a-c806-4221-9c0a-7986414c0832/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 175c9418701070e8128f8ed008fd30685ed8c019e1010acc82e904c5730ef842 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:50:03,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:50:03,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:50:04,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:50:04,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:50:04,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:50:04,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:50:04,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:50:04,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:50:04,054 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:50:04,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:50:04,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:50:04,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:50:04,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:50:04,056 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:50:04,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:50:04,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:50:04,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:50:04,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:50:04,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:50:04,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:50:04,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:50:04,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:50:04,057 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:50:04,057 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:50:04,058 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:50:04,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:50:04,058 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:50:04,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:50:04,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:50:04,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:50:04,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:50:04,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:50:04,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:50:04,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:50:04,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:50:04,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:50:04,060 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:50:04,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:50:04,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:50:04,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:50:04,060 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:50:04,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:50:04,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:50:04,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:50:04,061 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_07ebfb0a-c806-4221-9c0a-7986414c0832/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 -> 175c9418701070e8128f8ed008fd30685ed8c019e1010acc82e904c5730ef842 [2024-11-28 04:50:04,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:50:04,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:50:04,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:50:04,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:50:04,445 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:50:04,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i [2024-11-28 04:50:08,011 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/data/aef324759/f5add07242894075ac8de772e097bf8c/FLAGe33122388 [2024-11-28 04:50:08,819 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:50:08,820 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i [2024-11-28 04:50:08,857 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/data/aef324759/f5add07242894075ac8de772e097bf8c/FLAGe33122388 [2024-11-28 04:50:08,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/data/aef324759/f5add07242894075ac8de772e097bf8c [2024-11-28 04:50:08,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:50:08,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:50:08,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:50:08,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:50:08,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:50:08,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:08" (1/1) ... [2024-11-28 04:50:08,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd40f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:08, skipping insertion in model container [2024-11-28 04:50:08,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:08" (1/1) ... [2024-11-28 04:50:09,049 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:50:09,399 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_07ebfb0a-c806-4221-9c0a-7986414c0832/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i[4505,4518] [2024-11-28 04:50:09,409 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_07ebfb0a-c806-4221-9c0a-7986414c0832/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i[4565,4578] [2024-11-28 04:50:10,526 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:10,527 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:10,528 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:10,529 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:10,531 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:10,550 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:10,551 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:10,554 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:10,555 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,324 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,324 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:50:11,488 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:50:11,503 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_07ebfb0a-c806-4221-9c0a-7986414c0832/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i[4505,4518] [2024-11-28 04:50:11,503 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_07ebfb0a-c806-4221-9c0a-7986414c0832/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness_negated.i[4565,4578] [2024-11-28 04:50:11,671 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,672 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,672 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,677 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,678 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,692 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,693 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,697 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,698 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,848 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,849 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:50:11,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2024-11-28 04:50:11,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:50:12,233 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:50:12,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12 WrapperNode [2024-11-28 04:50:12,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:50:12,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:50:12,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:50:12,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:50:12,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,498 INFO L138 Inliner]: procedures = 678, calls = 1530, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 763 [2024-11-28 04:50:12,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:50:12,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:50:12,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:50:12,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:50:12,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,535 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,651 INFO L175 MemorySlicer]: Split 301 memory accesses to 5 slices as follows [2, 238, 48, 8, 5]. 79 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 6, 0, 2, 5]. The 252 writes are split as follows [0, 232, 19, 1, 0]. [2024-11-28 04:50:12,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,723 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:50:12,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:50:12,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:50:12,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:50:12,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (1/1) ... [2024-11-28 04:50:12,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:50:12,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:12,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:12,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:50:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-28 04:50:12,898 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-28 04:50:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:50:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-28 04:50:12,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-28 04:50:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 04:50:12,899 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 04:50:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-28 04:50:12,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-28 04:50:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:50:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:50:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:50:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:50:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 04:50:12,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 04:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:50:12,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:50:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:50:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:50:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:50:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:50:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:50:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:50:12,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:50:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 04:50:12,901 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 04:50:12,906 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-28 04:50:12,906 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-28 04:50:12,906 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 04:50:12,906 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 04:50:12,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:50:12,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:50:12,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:50:12,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:50:12,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:50:12,906 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-28 04:50:12,907 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-28 04:50:12,907 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-28 04:50:12,907 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-28 04:50:12,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:50:12,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:50:12,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:50:12,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:50:12,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:50:12,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:50:12,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:50:12,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:50:12,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:50:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:50:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:50:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:50:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:50:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 04:50:12,908 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 04:50:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 04:50:12,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 04:50:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:50:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:50:12,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:50:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:50:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:50:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-28 04:50:12,909 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-28 04:50:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-28 04:50:12,909 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-28 04:50:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:50:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:50:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:50:12,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:50:12,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:50:13,427 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:50:13,430 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:50:20,595 INFO L? ?]: Removed 151 outVars from TransFormulas that were not future-live. [2024-11-28 04:50:20,595 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:50:20,622 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:50:20,623 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:50:20,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:20 BoogieIcfgContainer [2024-11-28 04:50:20,624 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:50:20,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:50:20,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:50:20,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:50:20,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:50:08" (1/3) ... [2024-11-28 04:50:20,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687053df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:50:20, skipping insertion in model container [2024-11-28 04:50:20,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:12" (2/3) ... [2024-11-28 04:50:20,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687053df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:50:20, skipping insertion in model container [2024-11-28 04:50:20,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:20" (3/3) ... [2024-11-28 04:50:20,640 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness_negated.i [2024-11-28 04:50:20,662 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:50:20,664 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_init_dynamic_harness_negated.i that has 17 procedures, 219 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-28 04:50:20,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:50:20,781 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;@7ef6a037, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:50:20,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:50:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 141 states have (on average 1.2411347517730495) internal successors, (175), 141 states have internal predecessors, (175), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:50:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:50:20,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:20,813 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 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] [2024-11-28 04:50:20,814 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:20,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:20,822 INFO L85 PathProgramCache]: Analyzing trace with hash 290935327, now seen corresponding path program 1 times [2024-11-28 04:50:20,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:20,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768192123] [2024-11-28 04:50:20,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:20,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-28 04:50:29,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:29,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768192123] [2024-11-28 04:50:29,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768192123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:29,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020300681] [2024-11-28 04:50:29,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:29,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:29,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:29,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:29,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:50:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:39,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 4413 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:50:39,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-28 04:50:39,731 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:50:39,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020300681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:39,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:50:39,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:50:39,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286328365] [2024-11-28 04:50:39,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:39,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:50:39,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:39,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:50:39,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:50:39,780 INFO L87 Difference]: Start difference. First operand has 219 states, 141 states have (on average 1.2411347517730495) internal successors, (175), 141 states have internal predecessors, (175), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-28 04:50:39,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:39,891 INFO L93 Difference]: Finished difference Result 412 states and 602 transitions. [2024-11-28 04:50:39,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:50:39,893 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 144 [2024-11-28 04:50:39,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:39,908 INFO L225 Difference]: With dead ends: 412 [2024-11-28 04:50:39,908 INFO L226 Difference]: Without dead ends: 212 [2024-11-28 04:50:39,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 04:50:39,919 INFO L435 NwaCegarLoop]: 291 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, 291 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 04:50:39,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:50:39,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-28 04:50:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-28 04:50:39,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 133 states have (on average 1.2105263157894737) internal successors, (161), 135 states have internal predecessors, (161), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 04:50:40,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 283 transitions. [2024-11-28 04:50:40,010 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 283 transitions. Word has length 144 [2024-11-28 04:50:40,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:40,013 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 283 transitions. [2024-11-28 04:50:40,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-28 04:50:40,013 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 283 transitions. [2024-11-28 04:50:40,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:50:40,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:40,019 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 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] [2024-11-28 04:50:40,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:50:40,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:40,224 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:40,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:40,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1256954113, now seen corresponding path program 1 times [2024-11-28 04:50:40,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:40,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50803587] [2024-11-28 04:50:40,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:40,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:51,790 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-11-28 04:50:51,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:51,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50803587] [2024-11-28 04:50:51,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50803587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:51,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538730396] [2024-11-28 04:50:51,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:51,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:51,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:51,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:51,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:51:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:00,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 4561 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:51:00,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-28 04:51:01,009 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:01,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538730396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:01,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:01,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2024-11-28 04:51:01,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144020519] [2024-11-28 04:51:01,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:01,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:51:01,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:01,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:51:01,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:51:01,018 INFO L87 Difference]: Start difference. First operand 212 states and 283 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-28 04:51:01,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:01,659 INFO L93 Difference]: Finished difference Result 392 states and 517 transitions. [2024-11-28 04:51:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:51:01,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 178 [2024-11-28 04:51:01,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:01,668 INFO L225 Difference]: With dead ends: 392 [2024-11-28 04:51:01,668 INFO L226 Difference]: Without dead ends: 212 [2024-11-28 04:51:01,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:51:01,671 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 7 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:01,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1365 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:51:01,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-28 04:51:01,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-28 04:51:01,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 133 states have (on average 1.2030075187969924) internal successors, (160), 135 states have internal predecessors, (160), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 04:51:01,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 282 transitions. [2024-11-28 04:51:01,699 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 282 transitions. Word has length 178 [2024-11-28 04:51:01,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:01,700 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 282 transitions. [2024-11-28 04:51:01,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-28 04:51:01,701 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 282 transitions. [2024-11-28 04:51:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:51:01,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:01,705 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 2, 2, 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] [2024-11-28 04:51:01,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:51:01,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:01,907 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:01,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:01,907 INFO L85 PathProgramCache]: Analyzing trace with hash 532674155, now seen corresponding path program 1 times [2024-11-28 04:51:01,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:01,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441832902] [2024-11-28 04:51:01,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:01,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:13,484 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-11-28 04:51:13,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:13,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441832902] [2024-11-28 04:51:13,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441832902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:13,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389159555] [2024-11-28 04:51:13,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:13,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:13,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:13,491 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:13,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:51:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:21,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 4577 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:51:21,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-28 04:51:21,872 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:21,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389159555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:21,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:21,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-28 04:51:21,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21295976] [2024-11-28 04:51:21,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:21,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:21,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:21,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:21,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:51:21,876 INFO L87 Difference]: Start difference. First operand 212 states and 282 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-28 04:51:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:21,972 INFO L93 Difference]: Finished difference Result 388 states and 514 transitions. [2024-11-28 04:51:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:21,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 182 [2024-11-28 04:51:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:21,977 INFO L225 Difference]: With dead ends: 388 [2024-11-28 04:51:21,978 INFO L226 Difference]: Without dead ends: 214 [2024-11-28 04:51:21,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:51:21,980 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 1 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:21,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 556 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:21,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-28 04:51:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 213. [2024-11-28 04:51:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 134 states have (on average 1.2014925373134329) internal successors, (161), 136 states have internal predecessors, (161), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 04:51:22,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 283 transitions. [2024-11-28 04:51:22,007 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 283 transitions. Word has length 182 [2024-11-28 04:51:22,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:22,008 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 283 transitions. [2024-11-28 04:51:22,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-28 04:51:22,009 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 283 transitions. [2024-11-28 04:51:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-28 04:51:22,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:22,013 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:51:22,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:51:22,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:22,214 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:22,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:22,215 INFO L85 PathProgramCache]: Analyzing trace with hash -145417229, now seen corresponding path program 1 times [2024-11-28 04:51:22,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:22,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015143489] [2024-11-28 04:51:22,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:22,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-28 04:51:32,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:32,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015143489] [2024-11-28 04:51:32,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015143489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:32,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850791432] [2024-11-28 04:51:32,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:32,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:32,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:32,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:32,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:51:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:42,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 4615 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:51:42,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 154 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 04:51:44,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-28 04:51:47,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850791432] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:47,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:51:47,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-28 04:51:47,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110228025] [2024-11-28 04:51:47,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:47,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:51:47,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:47,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:51:47,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:51:47,067 INFO L87 Difference]: Start difference. First operand 213 states and 283 transitions. Second operand has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 17 states have internal predecessors, (104), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2024-11-28 04:51:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:48,339 INFO L93 Difference]: Finished difference Result 398 states and 522 transitions. [2024-11-28 04:51:48,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:51:48,340 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 17 states have internal predecessors, (104), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) Word has length 186 [2024-11-28 04:51:48,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:48,348 INFO L225 Difference]: With dead ends: 398 [2024-11-28 04:51:48,348 INFO L226 Difference]: Without dead ends: 216 [2024-11-28 04:51:48,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:51:48,353 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 11 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:48,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3259 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:51:48,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-28 04:51:48,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2024-11-28 04:51:48,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 136 states have (on average 1.1985294117647058) internal successors, (163), 138 states have internal predecessors, (163), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 04:51:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 285 transitions. [2024-11-28 04:51:48,395 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 285 transitions. Word has length 186 [2024-11-28 04:51:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:48,397 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 285 transitions. [2024-11-28 04:51:48,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 17 states have internal predecessors, (104), 7 states have call successors, (42), 2 states have call predecessors, (42), 6 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2024-11-28 04:51:48,398 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 285 transitions. [2024-11-28 04:51:48,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:51:48,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:48,405 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 4, 4, 2, 2, 2, 2, 2, 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] [2024-11-28 04:51:48,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:51:48,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:48,606 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:48,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:48,607 INFO L85 PathProgramCache]: Analyzing trace with hash 567037307, now seen corresponding path program 2 times [2024-11-28 04:51:48,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:48,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562807077] [2024-11-28 04:51:48,608 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:51:48,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:57,725 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:51:57,725 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-11-28 04:52:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:02,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562807077] [2024-11-28 04:52:02,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562807077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:02,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998508939] [2024-11-28 04:52:02,069 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:02,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:02,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:02,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:02,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ebfb0a-c806-4221-9c0a-7986414c0832/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process