./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_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_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/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_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/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_edb4d16a-e018-482d-bdf7-42dbfc270e98/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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:33:10,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:33:10,424 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 00:33:10,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:33:10,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:33:10,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:33:10,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:33:10,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:33:10,465 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:33:10,465 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:33:10,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:33:10,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:33:10,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:33:10,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:33:10,467 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:33:10,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:33:10,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:33:10,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:33:10,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:33:10,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:33:10,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:33:10,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:33:10,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:33:10,469 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:33:10,469 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:33:10,469 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:33:10,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:33:10,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:33:10,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:33:10,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:33:10,470 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:33:10,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:33:10,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:33:10,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:33:10,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:33:10,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:33:10,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:33:10,471 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:33:10,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:33:10,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:33:10,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:33:10,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:33:10,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:33:10,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:33:10,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:33:10,472 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_edb4d16a-e018-482d-bdf7-42dbfc270e98/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 -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2024-11-24 00:33:10,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:33:10,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:33:10,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:33:10,886 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:33:10,886 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:33:10,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-11-24 00:33:14,697 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/data/1fab84022/087ee98845b444f8978b920f973f21e8/FLAG9d31f95ed [2024-11-24 00:33:15,366 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:33:15,367 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-11-24 00:33:15,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/data/1fab84022/087ee98845b444f8978b920f973f21e8/FLAG9d31f95ed [2024-11-24 00:33:15,426 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/data/1fab84022/087ee98845b444f8978b920f973f21e8 [2024-11-24 00:33:15,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:33:15,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:33:15,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:33:15,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:33:15,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:33:15,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:15" (1/1) ... [2024-11-24 00:33:15,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599f3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:15, skipping insertion in model container [2024-11-24 00:33:15,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:15" (1/1) ... [2024-11-24 00:33:15,569 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:33:15,893 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_edb4d16a-e018-482d-bdf7-42dbfc270e98/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-24 00:33:15,905 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_edb4d16a-e018-482d-bdf7-42dbfc270e98/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-24 00:33:17,118 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,119 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,120 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,121 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,123 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,144 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,145 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,148 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,149 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,152 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,153 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,154 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,158 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,998 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:17,999 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,006 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,016 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:33:18,183 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:33:18,207 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_edb4d16a-e018-482d-bdf7-42dbfc270e98/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-24 00:33:18,207 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_edb4d16a-e018-482d-bdf7-42dbfc270e98/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-24 00:33:18,362 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,363 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,363 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,364 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,365 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,378 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,379 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,381 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,381 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,383 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,385 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,385 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,386 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,525 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,529 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,531 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,537 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-24 00:33:18,546 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-11-24 00:33:18,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:33:18,855 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:33:18,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18 WrapperNode [2024-11-24 00:33:18,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:33:18,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:33:18,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:33:18,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:33:18,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:18,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,059 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 653 [2024-11-24 00:33:19,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:33:19,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:33:19,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:33:19,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:33:19,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,097 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,216 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 3, 5, 6, 9, 39]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 1, 2, 5, 5, 5]. The 238 writes are split as follows [232, 0, 1, 1, 1, 0, 3]. [2024-11-24 00:33:19,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,279 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:33:19,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:33:19,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:33:19,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:33:19,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (1/1) ... [2024-11-24 00:33:19,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:33:19,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:19,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:33:19,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:33:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:33:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-24 00:33:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-24 00:33:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-24 00:33:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-24 00:33:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-24 00:33:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-24 00:33:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 00:33:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 00:33:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 00:33:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 00:33:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 00:33:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 00:33:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 00:33:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:33:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:33:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 00:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-24 00:33:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-24 00:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 00:33:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 00:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 00:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 00:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 00:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 00:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 00:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 00:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 00:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-24 00:33:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-24 00:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:33:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-24 00:33:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-24 00:33:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-24 00:33:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-24 00:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:33:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-24 00:33:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 00:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 00:33:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 00:33:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 00:33:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 00:33:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-24 00:33:19,424 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-24 00:33:19,428 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-24 00:33:19,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-24 00:33:19,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:33:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:33:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:33:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:33:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:33:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:33:19,936 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:33:19,939 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:33:27,055 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-24 00:33:27,055 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:33:27,072 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:33:27,073 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:33:27,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:27 BoogieIcfgContainer [2024-11-24 00:33:27,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:33:27,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:33:27,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:33:27,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:33:27,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:33:15" (1/3) ... [2024-11-24 00:33:27,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fb22ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:33:27, skipping insertion in model container [2024-11-24 00:33:27,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:18" (2/3) ... [2024-11-24 00:33:27,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fb22ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:33:27, skipping insertion in model container [2024-11-24 00:33:27,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:27" (3/3) ... [2024-11-24 00:33:27,086 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2024-11-24 00:33:27,106 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:33:27,108 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_harness.i that has 16 procedures, 179 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:33:27,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:33:27,201 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;@74b715bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:33:27,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:33:27,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 102 states have internal predecessors, (118), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:33:27,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 00:33:27,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:27,223 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:27,224 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:27,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:27,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1526607995, now seen corresponding path program 1 times [2024-11-24 00:33:27,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:27,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975977432] [2024-11-24 00:33:27,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:27,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:33:37,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:37,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975977432] [2024-11-24 00:33:37,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975977432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:33:37,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410174698] [2024-11-24 00:33:37,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:37,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:37,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:37,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:37,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:33:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:46,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:33:46,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:33:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:33:46,274 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:33:46,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410174698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:46,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:33:46,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:33:46,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839601774] [2024-11-24 00:33:46,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:46,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:33:46,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:46,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:33:46,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:33:46,318 INFO L87 Difference]: Start difference. First operand has 179 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 102 states have internal predecessors, (118), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:33:46,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:46,379 INFO L93 Difference]: Finished difference Result 351 states and 515 transitions. [2024-11-24 00:33:46,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:33:46,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2024-11-24 00:33:46,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:46,397 INFO L225 Difference]: With dead ends: 351 [2024-11-24 00:33:46,400 INFO L226 Difference]: Without dead ends: 174 [2024-11-24 00:33:46,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:33:46,414 INFO L435 NwaCegarLoop]: 237 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, 237 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:46,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:33:46,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-24 00:33:46,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-24 00:33:46,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 97 states have (on average 1.1443298969072164) internal successors, (111), 98 states have internal predecessors, (111), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 00:33:46,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2024-11-24 00:33:46,512 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 69 [2024-11-24 00:33:46,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:46,515 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2024-11-24 00:33:46,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:33:46,516 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2024-11-24 00:33:46,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 00:33:46,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:46,521 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:46,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:33:46,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:46,727 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:46,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:46,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1908141771, now seen corresponding path program 1 times [2024-11-24 00:33:46,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:46,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430453127] [2024-11-24 00:33:46,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:46,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:55,562 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-24 00:33:55,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:55,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430453127] [2024-11-24 00:33:55,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430453127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:33:55,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035659084] [2024-11-24 00:33:55,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:55,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:55,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:55,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:55,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:34:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:34:04,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:34:04,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:34:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-24 00:34:04,764 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:34:04,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035659084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:34:04,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:34:04,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-24 00:34:04,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706670637] [2024-11-24 00:34:04,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:34:04,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:34:04,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:34:04,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:34:04,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:34:04,768 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:34:06,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:34:06,732 INFO L93 Difference]: Finished difference Result 313 states and 430 transitions. [2024-11-24 00:34:06,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:34:06,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2024-11-24 00:34:06,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:34:06,737 INFO L225 Difference]: With dead ends: 313 [2024-11-24 00:34:06,738 INFO L226 Difference]: Without dead ends: 176 [2024-11-24 00:34:06,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:34:06,740 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 236 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:34:06,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 663 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 00:34:06,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-24 00:34:06,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-24 00:34:06,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 100 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-24 00:34:06,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 241 transitions. [2024-11-24 00:34:06,771 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 241 transitions. Word has length 69 [2024-11-24 00:34:06,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:34:06,772 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 241 transitions. [2024-11-24 00:34:06,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:34:06,772 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 241 transitions. [2024-11-24 00:34:06,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 00:34:06,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:34:06,775 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:34:06,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:34:06,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:34:06,976 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:34:06,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:34:06,977 INFO L85 PathProgramCache]: Analyzing trace with hash -112018397, now seen corresponding path program 1 times [2024-11-24 00:34:06,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:34:06,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011585054] [2024-11-24 00:34:06,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:34:06,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:34:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:34:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-24 00:34:15,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:34:15,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011585054] [2024-11-24 00:34:15,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011585054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:34:15,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315519897] [2024-11-24 00:34:15,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:34:15,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:34:15,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:34:15,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:34:15,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:34:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:34:23,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 4140 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:34:23,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:34:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-24 00:34:24,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:34:24,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315519897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:34:24,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:34:24,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-24 00:34:24,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429221573] [2024-11-24 00:34:24,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:34:24,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:34:24,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:34:24,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:34:24,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:34:24,144 INFO L87 Difference]: Start difference. First operand 176 states and 241 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-24 00:34:27,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:34:27,067 INFO L93 Difference]: Finished difference Result 324 states and 453 transitions. [2024-11-24 00:34:27,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:34:27,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2024-11-24 00:34:27,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:34:27,072 INFO L225 Difference]: With dead ends: 324 [2024-11-24 00:34:27,072 INFO L226 Difference]: Without dead ends: 188 [2024-11-24 00:34:27,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:34:27,074 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 256 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:34:27,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 988 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 00:34:27,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-24 00:34:27,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-11-24 00:34:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 104 states have (on average 1.1442307692307692) internal successors, (119), 106 states have internal predecessors, (119), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2024-11-24 00:34:27,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 258 transitions. [2024-11-24 00:34:27,106 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 258 transitions. Word has length 84 [2024-11-24 00:34:27,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:34:27,110 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 258 transitions. [2024-11-24 00:34:27,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-24 00:34:27,111 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 258 transitions. [2024-11-24 00:34:27,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 00:34:27,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:34:27,119 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:34:27,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:34:27,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:34:27,319 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:34:27,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:34:27,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1693251591, now seen corresponding path program 1 times [2024-11-24 00:34:27,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:34:27,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747729837] [2024-11-24 00:34:27,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:34:27,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:34:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:34:39,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350982052] [2024-11-24 00:34:39,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:34:39,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:34:39,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:34:39,788 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:34:39,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edb4d16a-e018-482d-bdf7-42dbfc270e98/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process