./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_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_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/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_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/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_b241fac7-35d0-418e-bd4d-f49811465b8e/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 83b04173d709803d577cfa49fe0a9356919fe4fb57e740404cfb5ffbf2560c97 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:06:22,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:06:22,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 23:06:22,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:06:22,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:06:22,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:06:22,551 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:06:22,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:06:22,552 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:06:22,552 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:06:22,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:06:22,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:06:22,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:06:22,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:06:22,556 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:06:22,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:06:22,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:06:22,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:06:22,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:06:22,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:06:22,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:06:22,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:06:22,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:06:22,557 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:06:22,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:06:22,557 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:06:22,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:06:22,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:06:22,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:06:22,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:06:22,558 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:06:22,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:06:22,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:06:22,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:06:22,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:06:22,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:06:22,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:06:22,560 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:06:22,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:06:22,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:06:22,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:06:22,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:06:22,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:06:22,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:06:22,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:06:22,561 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_b241fac7-35d0-418e-bd4d-f49811465b8e/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 -> 83b04173d709803d577cfa49fe0a9356919fe4fb57e740404cfb5ffbf2560c97 [2024-11-23 23:06:22,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:06:22,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:06:22,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:06:22,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:06:22,963 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:06:22,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2024-11-23 23:06:26,095 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/data/93e68437b/493691135fb749dc8a1705da948f3afe/FLAG3ecd1ab10 [2024-11-23 23:06:26,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:06:26,783 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2024-11-23 23:06:26,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/data/93e68437b/493691135fb749dc8a1705da948f3afe/FLAG3ecd1ab10 [2024-11-23 23:06:26,873 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/data/93e68437b/493691135fb749dc8a1705da948f3afe [2024-11-23 23:06:26,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:06:26,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:06:26,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:06:26,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:06:26,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:06:26,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:06:26" (1/1) ... [2024-11-23 23:06:26,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8c712e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:26, skipping insertion in model container [2024-11-23 23:06:26,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:06:26" (1/1) ... [2024-11-23 23:06:26,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:06:27,322 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_b241fac7-35d0-418e-bd4d-f49811465b8e/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2024-11-23 23:06:27,330 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_b241fac7-35d0-418e-bd4d-f49811465b8e/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2024-11-23 23:06:28,444 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:28,445 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:28,446 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:28,447 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:28,449 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:28,468 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:28,469 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:28,472 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:28,473 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,343 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,344 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:06:29,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:06:29,507 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_b241fac7-35d0-418e-bd4d-f49811465b8e/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2024-11-23 23:06:29,508 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_b241fac7-35d0-418e-bd4d-f49811465b8e/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2024-11-23 23:06:29,598 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,599 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,599 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,602 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,603 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,617 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,619 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,620 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,621 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,745 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,745 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 23:06:29,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-11-23 23:06:29,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:06:30,090 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:06:30,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30 WrapperNode [2024-11-23 23:06:30,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:06:30,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:06:30,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:06:30,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:06:30,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,289 INFO L138 Inliner]: procedures = 678, calls = 1548, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 726 [2024-11-23 23:06:30,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:06:30,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:06:30,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:06:30,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:06:30,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,328 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,407 INFO L175 MemorySlicer]: Split 340 memory accesses to 7 slices as follows [238, 2, 2, 82, 6, 3, 7]. 70 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [6, 2, 1, 10, 0, 1, 5]. The 253 writes are split as follows [232, 0, 1, 17, 2, 1, 0]. [2024-11-23 23:06:30,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,467 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:06:30,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:06:30,525 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:06:30,525 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:06:30,526 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (1/1) ... [2024-11-23 23:06:30,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:06:30,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:06:30,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:06:30,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:06:30,605 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-23 23:06:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-23 23:06:30,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:06:30,605 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-23 23:06:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-23 23:06:30,606 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-23 23:06:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-23 23:06:30,606 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-23 23:06:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-23 23:06:30,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 23:06:30,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 23:06:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 23:06:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 23:06:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 23:06:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 23:06:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-23 23:06:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:06:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:06:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:06:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:06:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-23 23:06:30,611 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 23:06:30,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-23 23:06:30,611 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:06:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:06:30,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-23 23:06:30,612 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-23 23:06:30,612 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-23 23:06:30,612 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-23 23:06:30,612 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 23:06:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 23:06:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 23:06:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 23:06:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 23:06:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 23:06:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-23 23:06:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-23 23:06:30,613 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-23 23:06:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-23 23:06:30,613 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-23 23:06:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:06:30,613 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:06:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:06:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:06:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-23 23:06:30,618 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-23 23:06:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-23 23:06:30,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-11-23 23:06:30,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-23 23:06:30,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:06:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:06:30,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:06:30,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 23:06:31,073 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:06:31,075 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:06:37,379 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2024-11-23 23:06:37,380 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:06:37,401 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:06:37,404 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:06:37,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:06:37 BoogieIcfgContainer [2024-11-23 23:06:37,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:06:37,406 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:06:37,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:06:37,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:06:37,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:06:26" (1/3) ... [2024-11-23 23:06:37,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b13998a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:06:37, skipping insertion in model container [2024-11-23 23:06:37,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:30" (2/3) ... [2024-11-23 23:06:37,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b13998a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:06:37, skipping insertion in model container [2024-11-23 23:06:37,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:06:37" (3/3) ... [2024-11-23 23:06:37,416 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness.i [2024-11-23 23:06:37,436 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:06:37,439 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_top_harness.i that has 19 procedures, 208 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-23 23:06:37,517 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:06:37,533 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;@67cc4c6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:06:37,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:06:37,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 132 states have (on average 1.2196969696969697) internal successors, (161), 132 states have internal predecessors, (161), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-23 23:06:37,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 23:06:37,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:37,565 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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] [2024-11-23 23:06:37,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:06:37,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:37,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1676921267, now seen corresponding path program 1 times [2024-11-23 23:06:37,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:37,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072972358] [2024-11-23 23:06:37,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:37,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:45,601 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-23 23:06:45,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:45,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072972358] [2024-11-23 23:06:45,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072972358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:06:45,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030597907] [2024-11-23 23:06:45,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:45,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:45,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:06:45,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:06:45,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:06:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:53,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:06:53,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:06:53,721 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-23 23:06:53,724 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:06:53,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030597907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:06:53,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:06:53,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:06:53,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184715199] [2024-11-23 23:06:53,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:06:53,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:06:53,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:53,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:06:53,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:06:53,766 INFO L87 Difference]: Start difference. First operand has 208 states, 132 states have (on average 1.2196969696969697) internal successors, (161), 132 states have internal predecessors, (161), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:06:53,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:53,845 INFO L93 Difference]: Finished difference Result 393 states and 552 transitions. [2024-11-23 23:06:53,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:06:53,851 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 148 [2024-11-23 23:06:53,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:53,868 INFO L225 Difference]: With dead ends: 393 [2024-11-23 23:06:53,868 INFO L226 Difference]: Without dead ends: 203 [2024-11-23 23:06:53,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:06:53,881 INFO L435 NwaCegarLoop]: 270 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, 270 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 [2024-11-23 23:06:53,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:06:53,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-23 23:06:53,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-23 23:06:53,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 128 states have internal predecessors, (152), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 23:06:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 265 transitions. [2024-11-23 23:06:53,968 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 265 transitions. Word has length 148 [2024-11-23 23:06:53,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:53,971 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 265 transitions. [2024-11-23 23:06:53,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:06:53,971 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 265 transitions. [2024-11-23 23:06:53,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 23:06:53,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:53,979 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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] [2024-11-23 23:06:54,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:06:54,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:06:54,180 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:06:54,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:54,181 INFO L85 PathProgramCache]: Analyzing trace with hash -96862927, now seen corresponding path program 1 times [2024-11-23 23:06:54,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:54,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749398163] [2024-11-23 23:06:54,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:54,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:01,976 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-23 23:07:01,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:01,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749398163] [2024-11-23 23:07:01,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749398163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:01,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:01,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:07:01,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764159435] [2024-11-23 23:07:01,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:01,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:07:01,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:01,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:07:01,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:01,986 INFO L87 Difference]: Start difference. First operand 203 states and 265 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:07:02,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:02,567 INFO L93 Difference]: Finished difference Result 357 states and 466 transitions. [2024-11-23 23:07:02,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:02,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 148 [2024-11-23 23:07:02,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:02,575 INFO L225 Difference]: With dead ends: 357 [2024-11-23 23:07:02,575 INFO L226 Difference]: Without dead ends: 203 [2024-11-23 23:07:02,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:02,581 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 19 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:02,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 946 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:07:02,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-23 23:07:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-23 23:07:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 127 states have (on average 1.188976377952756) internal successors, (151), 128 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 23:07:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 264 transitions. [2024-11-23 23:07:02,612 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 264 transitions. Word has length 148 [2024-11-23 23:07:02,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:02,613 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 264 transitions. [2024-11-23 23:07:02,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:07:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 264 transitions. [2024-11-23 23:07:02,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-23 23:07:02,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:02,616 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 3, 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] [2024-11-23 23:07:02,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:07:02,617 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:02,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:02,618 INFO L85 PathProgramCache]: Analyzing trace with hash 870484713, now seen corresponding path program 1 times [2024-11-23 23:07:02,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:02,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795957141] [2024-11-23 23:07:02,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:02,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:09,982 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-23 23:07:09,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:09,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795957141] [2024-11-23 23:07:09,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795957141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:09,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621054395] [2024-11-23 23:07:09,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:09,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:09,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:09,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:09,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:07:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:16,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 4625 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:07:16,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:18,110 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-23 23:07:18,110 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:07:18,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621054395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:18,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:07:18,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-23 23:07:18,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355731882] [2024-11-23 23:07:18,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:18,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:07:18,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:18,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:07:18,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:07:18,114 INFO L87 Difference]: Start difference. First operand 203 states and 264 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:07:21,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:21,341 INFO L93 Difference]: Finished difference Result 376 states and 498 transitions. [2024-11-23 23:07:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:07:21,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 156 [2024-11-23 23:07:21,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:21,347 INFO L225 Difference]: With dead ends: 376 [2024-11-23 23:07:21,347 INFO L226 Difference]: Without dead ends: 205 [2024-11-23 23:07:21,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:07:21,349 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 282 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:21,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1287 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 23:07:21,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-23 23:07:21,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-23 23:07:21,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.1875) internal successors, (152), 130 states have internal predecessors, (152), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-11-23 23:07:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 271 transitions. [2024-11-23 23:07:21,404 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 271 transitions. Word has length 156 [2024-11-23 23:07:21,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:21,404 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 271 transitions. [2024-11-23 23:07:21,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-23 23:07:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 271 transitions. [2024-11-23 23:07:21,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-23 23:07:21,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:21,415 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:21,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:07:21,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:21,615 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:21,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:21,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1899644141, now seen corresponding path program 1 times [2024-11-23 23:07:21,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:21,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841388970] [2024-11-23 23:07:21,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:21,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:28,771 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-23 23:07:28,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:28,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841388970] [2024-11-23 23:07:28,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841388970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:28,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:28,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:07:28,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630980424] [2024-11-23 23:07:28,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:28,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:07:28,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:28,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:07:28,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:28,774 INFO L87 Difference]: Start difference. First operand 205 states and 271 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-23 23:07:29,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:29,726 INFO L93 Difference]: Finished difference Result 362 states and 479 transitions. [2024-11-23 23:07:29,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:07:29,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 171 [2024-11-23 23:07:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:29,730 INFO L225 Difference]: With dead ends: 362 [2024-11-23 23:07:29,730 INFO L226 Difference]: Without dead ends: 205 [2024-11-23 23:07:29,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:29,732 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 36 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:29,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1142 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:07:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-23 23:07:29,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-23 23:07:29,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.1796875) internal successors, (151), 130 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-11-23 23:07:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2024-11-23 23:07:29,753 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 171 [2024-11-23 23:07:29,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:29,754 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2024-11-23 23:07:29,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-23 23:07:29,754 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2024-11-23 23:07:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-23 23:07:29,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:29,757 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:29,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:07:29,758 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:29,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:29,758 INFO L85 PathProgramCache]: Analyzing trace with hash -953893562, now seen corresponding path program 1 times [2024-11-23 23:07:29,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:29,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359758419] [2024-11-23 23:07:29,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:29,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-23 23:07:38,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:38,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359758419] [2024-11-23 23:07:38,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359758419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:38,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107116239] [2024-11-23 23:07:38,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:38,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:38,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:38,656 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:38,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:07:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:46,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 4824 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:07:46,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:48,585 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:07:48,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:07:48,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107116239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:48,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:07:48,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-23 23:07:48,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976228914] [2024-11-23 23:07:48,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:48,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:07:48,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:48,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:07:48,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:07:48,588 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-23 23:07:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:52,712 INFO L93 Difference]: Finished difference Result 375 states and 496 transitions. [2024-11-23 23:07:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:07:52,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 187 [2024-11-23 23:07:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:52,716 INFO L225 Difference]: With dead ends: 375 [2024-11-23 23:07:52,716 INFO L226 Difference]: Without dead ends: 205 [2024-11-23 23:07:52,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:07:52,718 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 316 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:52,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1331 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-23 23:07:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-23 23:07:52,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-23 23:07:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.1796875) internal successors, (151), 130 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (61), 56 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-23 23:07:52,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 269 transitions. [2024-11-23 23:07:52,754 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 269 transitions. Word has length 187 [2024-11-23 23:07:52,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:52,755 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 269 transitions. [2024-11-23 23:07:52,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-23 23:07:52,755 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 269 transitions. [2024-11-23 23:07:52,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-23 23:07:52,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:52,761 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:52,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:07:52,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:52,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:52,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:52,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1229176796, now seen corresponding path program 2 times [2024-11-23 23:07:52,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:52,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175747128] [2024-11-23 23:07:52,963 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:07:52,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:59,095 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:07:59,095 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:08:01,155 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-23 23:08:01,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:01,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175747128] [2024-11-23 23:08:01,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175747128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:01,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:01,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:08:01,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184200100] [2024-11-23 23:08:01,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:01,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:08:01,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:01,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:08:01,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:08:01,160 INFO L87 Difference]: Start difference. First operand 205 states and 269 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-23 23:08:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:02,894 INFO L93 Difference]: Finished difference Result 347 states and 461 transitions. [2024-11-23 23:08:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:08:02,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 202 [2024-11-23 23:08:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:02,898 INFO L225 Difference]: With dead ends: 347 [2024-11-23 23:08:02,898 INFO L226 Difference]: Without dead ends: 218 [2024-11-23 23:08:02,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:08:02,900 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 40 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:02,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1581 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 23:08:02,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-23 23:08:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2024-11-23 23:08:02,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 134 states have (on average 1.1791044776119404) internal successors, (158), 136 states have internal predecessors, (158), 62 states have call successors, (62), 19 states have call predecessors, (62), 20 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2024-11-23 23:08:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 286 transitions. [2024-11-23 23:08:02,927 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 286 transitions. Word has length 202 [2024-11-23 23:08:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:02,930 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 286 transitions. [2024-11-23 23:08:02,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-23 23:08:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 286 transitions. [2024-11-23 23:08:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-23 23:08:02,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:02,934 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:02,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:08:02,935 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:02,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash -959421956, now seen corresponding path program 1 times [2024-11-23 23:08:02,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:02,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993576457] [2024-11-23 23:08:02,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:30,816 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-23 23:08:30,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:30,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993576457] [2024-11-23 23:08:30,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993576457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:08:30,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378801205] [2024-11-23 23:08:30,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:30,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:08:30,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:08:30,820 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:08:30,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:08:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:39,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 5205 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:08:39,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-23 23:08:40,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:08:40,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378801205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:40,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:08:40,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 20 [2024-11-23 23:08:40,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761683434] [2024-11-23 23:08:40,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:40,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:08:40,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:40,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:08:40,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:08:40,671 INFO L87 Difference]: Start difference. First operand 217 states and 286 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-23 23:08:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:42,583 INFO L93 Difference]: Finished difference Result 396 states and 525 transitions. [2024-11-23 23:08:42,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:08:42,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 232 [2024-11-23 23:08:42,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:42,586 INFO L225 Difference]: With dead ends: 396 [2024-11-23 23:08:42,586 INFO L226 Difference]: Without dead ends: 230 [2024-11-23 23:08:42,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 231 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:08:42,588 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 12 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:42,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1141 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 23:08:42,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-23 23:08:42,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 221. [2024-11-23 23:08:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 138 states have (on average 1.181159420289855) internal successors, (163), 140 states have internal predecessors, (163), 62 states have call successors, (62), 19 states have call predecessors, (62), 20 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2024-11-23 23:08:42,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 291 transitions. [2024-11-23 23:08:42,609 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 291 transitions. Word has length 232 [2024-11-23 23:08:42,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:42,609 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 291 transitions. [2024-11-23 23:08:42,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-23 23:08:42,610 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 291 transitions. [2024-11-23 23:08:42,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-23 23:08:42,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:42,613 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:42,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:08:42,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:08:42,814 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:42,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:42,814 INFO L85 PathProgramCache]: Analyzing trace with hash 641649150, now seen corresponding path program 1 times [2024-11-23 23:08:42,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:42,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276357460] [2024-11-23 23:08:42,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:42,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-23 23:08:49,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:49,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276357460] [2024-11-23 23:08:49,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276357460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:49,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:49,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:08:49,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105625443] [2024-11-23 23:08:49,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:49,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:08:49,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:49,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:08:49,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:08:49,501 INFO L87 Difference]: Start difference. First operand 221 states and 291 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:08:49,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:49,631 INFO L93 Difference]: Finished difference Result 394 states and 521 transitions. [2024-11-23 23:08:49,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:08:49,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 232 [2024-11-23 23:08:49,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:49,635 INFO L225 Difference]: With dead ends: 394 [2024-11-23 23:08:49,635 INFO L226 Difference]: Without dead ends: 224 [2024-11-23 23:08:49,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:08:49,637 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 1 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:49,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 772 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:08:49,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-23 23:08:49,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 223. [2024-11-23 23:08:49,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 142 states have internal predecessors, (165), 62 states have call successors, (62), 19 states have call predecessors, (62), 20 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2024-11-23 23:08:49,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 293 transitions. [2024-11-23 23:08:49,654 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 293 transitions. Word has length 232 [2024-11-23 23:08:49,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:49,654 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 293 transitions. [2024-11-23 23:08:49,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:08:49,655 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 293 transitions. [2024-11-23 23:08:49,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-23 23:08:49,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:49,657 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:49,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:08:49,657 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:49,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:49,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1993034368, now seen corresponding path program 1 times [2024-11-23 23:08:49,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:49,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228050572] [2024-11-23 23:08:49,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:49,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-23 23:09:12,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:12,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228050572] [2024-11-23 23:09:12,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228050572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:09:12,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318146644] [2024-11-23 23:09:12,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:12,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:09:12,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:09:12,966 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:09:12,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:09:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:21,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-23 23:09:21,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:09:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-23 23:09:23,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:09:23,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318146644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:23,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:09:23,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 24 [2024-11-23 23:09:23,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83559664] [2024-11-23 23:09:23,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:23,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:09:23,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:23,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:09:23,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:09:23,355 INFO L87 Difference]: Start difference. First operand 223 states and 293 transitions. Second operand has 11 states, 10 states have (on average 10.2) internal successors, (102), 11 states have internal predecessors, (102), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-23 23:09:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:27,094 INFO L93 Difference]: Finished difference Result 420 states and 563 transitions. [2024-11-23 23:09:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:09:27,095 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.2) internal successors, (102), 11 states have internal predecessors, (102), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 232 [2024-11-23 23:09:27,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:27,098 INFO L225 Difference]: With dead ends: 420 [2024-11-23 23:09:27,098 INFO L226 Difference]: Without dead ends: 248 [2024-11-23 23:09:27,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2024-11-23 23:09:27,101 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 68 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:27,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1995 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-23 23:09:27,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-23 23:09:27,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 234. [2024-11-23 23:09:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 150 states have (on average 1.1866666666666668) internal successors, (178), 152 states have internal predecessors, (178), 62 states have call successors, (62), 19 states have call predecessors, (62), 21 states have return successors, (75), 62 states have call predecessors, (75), 61 states have call successors, (75) [2024-11-23 23:09:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 315 transitions. [2024-11-23 23:09:27,125 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 315 transitions. Word has length 232 [2024-11-23 23:09:27,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:27,126 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 315 transitions. [2024-11-23 23:09:27,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.2) internal successors, (102), 11 states have internal predecessors, (102), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-23 23:09:27,126 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 315 transitions. [2024-11-23 23:09:27,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-23 23:09:27,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:27,129 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:27,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:09:27,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:09:27,330 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:27,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:27,330 INFO L85 PathProgramCache]: Analyzing trace with hash 71618942, now seen corresponding path program 1 times [2024-11-23 23:09:27,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:27,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277643456] [2024-11-23 23:09:27,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:27,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-23 23:09:37,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:37,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277643456] [2024-11-23 23:09:37,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277643456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:37,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:37,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:09:37,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914771241] [2024-11-23 23:09:37,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:37,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:09:37,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:37,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:09:37,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:09:37,741 INFO L87 Difference]: Start difference. First operand 234 states and 315 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:09:37,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:37,942 INFO L93 Difference]: Finished difference Result 425 states and 576 transitions. [2024-11-23 23:09:37,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:09:37,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 232 [2024-11-23 23:09:37,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:37,950 INFO L225 Difference]: With dead ends: 425 [2024-11-23 23:09:37,951 INFO L226 Difference]: Without dead ends: 242 [2024-11-23 23:09:37,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:09:37,953 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 2 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:37,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1028 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:09:37,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-23 23:09:37,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-23 23:09:37,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 158 states have (on average 1.1898734177215189) internal successors, (188), 160 states have internal predecessors, (188), 62 states have call successors, (62), 19 states have call predecessors, (62), 21 states have return successors, (75), 62 states have call predecessors, (75), 61 states have call successors, (75) [2024-11-23 23:09:37,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 325 transitions. [2024-11-23 23:09:37,989 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 325 transitions. Word has length 232 [2024-11-23 23:09:37,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:37,991 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 325 transitions. [2024-11-23 23:09:37,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:09:37,991 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 325 transitions. [2024-11-23 23:09:37,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-23 23:09:37,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:37,995 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:37,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:09:37,995 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:37,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:37,996 INFO L85 PathProgramCache]: Analyzing trace with hash 19868990, now seen corresponding path program 1 times [2024-11-23 23:09:37,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:37,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084366954] [2024-11-23 23:09:37,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:37,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:44,456 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-23 23:09:44,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:44,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084366954] [2024-11-23 23:09:44,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084366954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:09:44,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229699078] [2024-11-23 23:09:44,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:44,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:09:44,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:09:44,462 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:09:44,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:09:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:53,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 5192 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:09:53,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:09:53,293 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-23 23:09:53,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:09:53,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229699078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:53,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:09:53,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-23 23:09:53,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363841821] [2024-11-23 23:09:53,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:53,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:09:53,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:53,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:09:53,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:09:53,296 INFO L87 Difference]: Start difference. First operand 242 states and 325 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-23 23:09:53,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:53,456 INFO L93 Difference]: Finished difference Result 433 states and 596 transitions. [2024-11-23 23:09:53,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:09:53,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 232 [2024-11-23 23:09:53,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:53,460 INFO L225 Difference]: With dead ends: 433 [2024-11-23 23:09:53,460 INFO L226 Difference]: Without dead ends: 242 [2024-11-23 23:09:53,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:09:53,462 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:53,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:09:53,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-23 23:09:53,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-23 23:09:53,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 158 states have (on average 1.1835443037974684) internal successors, (187), 160 states have internal predecessors, (187), 62 states have call successors, (62), 19 states have call predecessors, (62), 21 states have return successors, (75), 62 states have call predecessors, (75), 61 states have call successors, (75) [2024-11-23 23:09:53,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 324 transitions. [2024-11-23 23:09:53,482 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 324 transitions. Word has length 232 [2024-11-23 23:09:53,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:53,483 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 324 transitions. [2024-11-23 23:09:53,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-23 23:09:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 324 transitions. [2024-11-23 23:09:53,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-23 23:09:53,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:53,486 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:53,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 23:09:53,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 23:09:53,687 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:53,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:53,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1995642328, now seen corresponding path program 1 times [2024-11-23 23:09:53,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:53,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547686169] [2024-11-23 23:09:53,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:53,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-23 23:10:14,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:14,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547686169] [2024-11-23 23:10:14,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547686169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:10:14,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954294819] [2024-11-23 23:10:14,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:14,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:14,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:10:14,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:10:14,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:10:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:23,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-23 23:10:23,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:10:23,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-23 23:10:23,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-23 23:10:24,983 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= (store |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#3.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#3.base|) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= |c_#memory_$Pointer$#3.offset| (store |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#3.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))))) is different from true [2024-11-23 23:10:25,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:10:25,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 23:10:25,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:10:25,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-23 23:10:25,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:10:25,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-23 23:10:25,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:10:25,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-23 23:10:25,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-23 23:10:25,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-23 23:10:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 130 proven. 8 refuted. 0 times theorem prover too weak. 122 trivial. 2 not checked. [2024-11-23 23:10:33,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:10:40,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954294819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:10:40,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:10:40,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 26 [2024-11-23 23:10:40,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105133368] [2024-11-23 23:10:40,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:10:40,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-23 23:10:40,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:40,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-23 23:10:40,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1124, Unknown=1, NotChecked=68, Total=1332 [2024-11-23 23:10:40,294 INFO L87 Difference]: Start difference. First operand 242 states and 324 transitions. Second operand has 26 states, 26 states have (on average 6.0) internal successors, (156), 25 states have internal predecessors, (156), 12 states have call successors, (50), 5 states have call predecessors, (50), 10 states have return successors, (50), 11 states have call predecessors, (50), 12 states have call successors, (50) [2024-11-23 23:11:21,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:21,391 INFO L93 Difference]: Finished difference Result 662 states and 884 transitions. [2024-11-23 23:11:21,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-23 23:11:21,392 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.0) internal successors, (156), 25 states have internal predecessors, (156), 12 states have call successors, (50), 5 states have call predecessors, (50), 10 states have return successors, (50), 11 states have call predecessors, (50), 12 states have call successors, (50) Word has length 234 [2024-11-23 23:11:21,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:21,400 INFO L225 Difference]: With dead ends: 662 [2024-11-23 23:11:21,404 INFO L226 Difference]: Without dead ends: 467 [2024-11-23 23:11:21,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 364 SyntacticMatches, 8 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=421, Invalid=2552, Unknown=1, NotChecked=106, Total=3080 [2024-11-23 23:11:21,408 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 365 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 4707 mSolverCounterSat, 240 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 5482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 4707 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 507 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:21,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 579 Invalid, 5482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [240 Valid, 4707 Invalid, 28 Unknown, 507 Unchecked, 36.0s Time] [2024-11-23 23:11:21,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-23 23:11:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 451. [2024-11-23 23:11:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 294 states have (on average 1.183673469387755) internal successors, (348), 299 states have internal predecessors, (348), 113 states have call successors, (113), 39 states have call predecessors, (113), 43 states have return successors, (142), 112 states have call predecessors, (142), 111 states have call successors, (142) [2024-11-23 23:11:21,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 603 transitions. [2024-11-23 23:11:21,479 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 603 transitions. Word has length 234 [2024-11-23 23:11:21,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:21,480 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 603 transitions. [2024-11-23 23:11:21,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.0) internal successors, (156), 25 states have internal predecessors, (156), 12 states have call successors, (50), 5 states have call predecessors, (50), 10 states have return successors, (50), 11 states have call predecessors, (50), 12 states have call successors, (50) [2024-11-23 23:11:21,480 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 603 transitions. [2024-11-23 23:11:21,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-23 23:11:21,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:21,483 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:21,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 23:11:21,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 23:11:21,684 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:11:21,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:21,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1341862125, now seen corresponding path program 1 times [2024-11-23 23:11:21,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:21,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437607022] [2024-11-23 23:11:21,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:31,655 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-23 23:11:31,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:31,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437607022] [2024-11-23 23:11:31,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437607022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:31,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698957529] [2024-11-23 23:11:31,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:31,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:31,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:31,658 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:31,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b241fac7-35d0-418e-bd4d-f49811465b8e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:11:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:40,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 5237 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-23 23:11:40,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:42,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 23:11:42,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-23 23:11:46,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-23 23:12:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-23 23:12:55,031 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:12:55,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698957529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:12:55,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:12:55,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5] total 20 [2024-11-23 23:12:55,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075191890] [2024-11-23 23:12:55,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:12:55,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:12:55,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:12:55,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:12:55,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=307, Unknown=17, NotChecked=0, Total=380 [2024-11-23 23:12:55,039 INFO L87 Difference]: Start difference. First operand 451 states and 603 transitions. Second operand has 17 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 10 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (32), 9 states have call predecessors, (32), 10 states have call successors, (32) [2024-11-23 23:13:47,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:13:51,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:13:55,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:13:59,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:04,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:08,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:12,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:16,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:20,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:25,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:29,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:33,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:37,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:41,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:45,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:49,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:53,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:14:57,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:01,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:06,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:07,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:11,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:15,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:19,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:24,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:28,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:32,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:36,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:40,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:44,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:15:48,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:08,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:12,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:29,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:33,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:37,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:41,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:45,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:49,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:53,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:57,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:01,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:05,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:09,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:13,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:17,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:22,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:26,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:30,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:34,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:38,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:42,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:46,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:50,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:54,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:03,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:07,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:11,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:15,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:19,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:23,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:27,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:31,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:35,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:39,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:43,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:47,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:51,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:55,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:59,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:03,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:19:07,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:12,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:16,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:20,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:19:24,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:28,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:32,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:36,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:40,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:44,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:48,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:52,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:19:56,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:00,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:04,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:08,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:12,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:16,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:20,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:24,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:28,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:32,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:36,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:41,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:20:45,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]