./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_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_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/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_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/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_5813e3af-56f4-4ec3-9504-911e321683e8/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 99ee682e10e695b9eb1615836043680c46e24c4df6227faaade6163d2feea99e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:41:24,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:41:25,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 18:41:25,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:41:25,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:41:25,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:41:25,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:41:25,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:41:25,058 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:41:25,058 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:41:25,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:41:25,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:41:25,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:41:25,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:41:25,059 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:41:25,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:41:25,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:41:25,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:41:25,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:41:25,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:41:25,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:41:25,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:41:25,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:41:25,060 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:41:25,061 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:41:25,061 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:41:25,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:41:25,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:41:25,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:41:25,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:41:25,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:41:25,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:41:25,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:41:25,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:41:25,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:41:25,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:41:25,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:41:25,063 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:41:25,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:41:25,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:41:25,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:41:25,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:41:25,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:41:25,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:41:25,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:41:25,064 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_5813e3af-56f4-4ec3-9504-911e321683e8/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 -> 99ee682e10e695b9eb1615836043680c46e24c4df6227faaade6163d2feea99e [2024-11-23 18:41:25,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:41:25,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:41:25,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:41:25,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:41:25,381 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:41:25,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i [2024-11-23 18:41:28,338 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/data/9c70b00a2/09030fbb20494a69937c86828535feec/FLAG603841515 [2024-11-23 18:41:28,944 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:41:28,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i [2024-11-23 18:41:28,989 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/data/9c70b00a2/09030fbb20494a69937c86828535feec/FLAG603841515 [2024-11-23 18:41:29,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/data/9c70b00a2/09030fbb20494a69937c86828535feec [2024-11-23 18:41:29,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:41:29,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:41:29,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:41:29,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:41:29,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:41:29,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:41:29" (1/1) ... [2024-11-23 18:41:29,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235bb802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:29, skipping insertion in model container [2024-11-23 18:41:29,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:41:29" (1/1) ... [2024-11-23 18:41:29,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:41:29,443 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_5813e3af-56f4-4ec3-9504-911e321683e8/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4492,4505] [2024-11-23 18:41:29,454 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4552,4565] [2024-11-23 18:41:30,548 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:30,549 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:30,549 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:30,550 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:30,551 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:30,569 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:30,570 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:30,572 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:30,573 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,593 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,593 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:41:31,765 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:41:31,781 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_5813e3af-56f4-4ec3-9504-911e321683e8/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4492,4505] [2024-11-23 18:41:31,781 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_5813e3af-56f4-4ec3-9504-911e321683e8/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4552,4565] [2024-11-23 18:41:31,842 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,843 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,843 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,844 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,844 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,853 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,853 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,855 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:31,855 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:32,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-23 18:41:32,050 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:32,054 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-23 18:41:32,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-23 18:41:32,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:41:32,392 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:41:32,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32 WrapperNode [2024-11-23 18:41:32,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:41:32,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:41:32,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:41:32,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:41:32,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,571 INFO L138 Inliner]: procedures = 680, calls = 2609, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 802 [2024-11-23 18:41:32,572 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:41:32,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:41:32,573 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:41:32,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:41:32,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,721 INFO L175 MemorySlicer]: Split 516 memory accesses to 6 slices as follows [2, 257, 238, 8, 6, 5]. 50 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 0, 6, 0, 0, 5]. The 491 writes are split as follows [0, 257, 232, 0, 2, 0]. [2024-11-23 18:41:32,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,777 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,792 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:41:32,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:41:32,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:41:32,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:41:32,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (1/1) ... [2024-11-23 18:41:32,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:41:32,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:41:32,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:41:32,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:41:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-23 18:41:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-23 18:41:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 18:41:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-23 18:41:32,905 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-23 18:41:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 18:41:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 18:41:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 18:41:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 18:41:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 18:41:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 18:41:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 18:41:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 18:41:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 18:41:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 18:41:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 18:41:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 18:41:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 18:41:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 18:41:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 18:41:32,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:41:32,909 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-23 18:41:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-23 18:41:32,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-23 18:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-23 18:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-23 18:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-23 18:41:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:41:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-23 18:41:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 18:41:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 18:41:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 18:41:33,282 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:41:33,284 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:41:42,435 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-23 18:41:42,435 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:41:42,447 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:41:42,448 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 18:41:42,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:41:42 BoogieIcfgContainer [2024-11-23 18:41:42,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:41:42,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:41:42,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:41:42,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:41:42,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:41:29" (1/3) ... [2024-11-23 18:41:42,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175cbaf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:41:42, skipping insertion in model container [2024-11-23 18:41:42,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:32" (2/3) ... [2024-11-23 18:41:42,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175cbaf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:41:42, skipping insertion in model container [2024-11-23 18:41:42,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:41:42" (3/3) ... [2024-11-23 18:41:42,460 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_harness.i [2024-11-23 18:41:42,479 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:41:42,481 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_eq_c_str_harness.i that has 10 procedures, 96 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:41:42,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:41:42,571 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;@68deaca8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:41:42,571 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:41:42,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 59 states have (on average 1.271186440677966) internal successors, (75), 62 states have internal predecessors, (75), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-23 18:41:42,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-23 18:41:42,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:42,589 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-23 18:41:42,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:42,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:42,599 INFO L85 PathProgramCache]: Analyzing trace with hash 511260694, now seen corresponding path program 1 times [2024-11-23 18:41:42,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:42,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084342595] [2024-11-23 18:41:42,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:42,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:43:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:43:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-23 18:43:12,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:43:12,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084342595] [2024-11-23 18:43:12,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084342595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:43:12,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298589095] [2024-11-23 18:43:12,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:43:12,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:43:12,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:43:12,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:43:12,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:44:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:42,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 7538 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:44:42,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-23 18:44:42,407 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:44:42,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298589095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:42,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:44:42,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:44:42,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486399456] [2024-11-23 18:44:42,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:42,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:44:42,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:42,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:44:42,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:44:42,434 INFO L87 Difference]: Start difference. First operand has 96 states, 59 states have (on average 1.271186440677966) internal successors, (75), 62 states have internal predecessors, (75), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 18:44:42,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:42,461 INFO L93 Difference]: Finished difference Result 189 states and 272 transitions. [2024-11-23 18:44:42,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:44:42,463 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2024-11-23 18:44:42,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:42,471 INFO L225 Difference]: With dead ends: 189 [2024-11-23 18:44:42,473 INFO L226 Difference]: Without dead ends: 91 [2024-11-23 18:44:42,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 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 18:44:42,485 INFO L435 NwaCegarLoop]: 124 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, 124 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 18:44:42,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:44:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-23 18:44:42,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-23 18:44:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 57 states have internal predecessors, (67), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-23 18:44:42,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 118 transitions. [2024-11-23 18:44:42,544 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 118 transitions. Word has length 67 [2024-11-23 18:44:42,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:42,544 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 118 transitions. [2024-11-23 18:44:42,545 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 18:44:42,545 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2024-11-23 18:44:42,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-23 18:44:42,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:42,547 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-23 18:44:42,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:44:42,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 18:44:42,748 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:42,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:42,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2109288692, now seen corresponding path program 1 times [2024-11-23 18:44:42,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:42,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537055627] [2024-11-23 18:44:42,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:42,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:46:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:46:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-23 18:46:22,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:46:22,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537055627] [2024-11-23 18:46:22,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537055627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:46:22,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864647538] [2024-11-23 18:46:22,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:46:22,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:46:22,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:46:22,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:46:22,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:48:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:48:05,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 7538 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 18:48:05,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:48:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-23 18:48:06,328 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:48:06,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864647538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:48:06,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:48:06,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 9 [2024-11-23 18:48:06,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45918758] [2024-11-23 18:48:06,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:48:06,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 18:48:06,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:48:06,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 18:48:06,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:48:06,332 INFO L87 Difference]: Start difference. First operand 91 states and 118 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 18:48:07,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:48:07,478 INFO L93 Difference]: Finished difference Result 144 states and 188 transitions. [2024-11-23 18:48:07,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:48:07,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 67 [2024-11-23 18:48:07,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:48:07,483 INFO L225 Difference]: With dead ends: 144 [2024-11-23 18:48:07,484 INFO L226 Difference]: Without dead ends: 91 [2024-11-23 18:48:07,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:48:07,488 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 6 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:48:07,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 680 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 18:48:07,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-23 18:48:07,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-23 18:48:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 55 states have (on average 1.2) internal successors, (66), 57 states have internal predecessors, (66), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-23 18:48:07,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 117 transitions. [2024-11-23 18:48:07,509 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 117 transitions. Word has length 67 [2024-11-23 18:48:07,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:48:07,511 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 117 transitions. [2024-11-23 18:48:07,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 18:48:07,511 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 117 transitions. [2024-11-23 18:48:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 18:48:07,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:48:07,514 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:48:07,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 18:48:07,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5813e3af-56f4-4ec3-9504-911e321683e8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:48:07,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:48:07,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:48:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash 890501595, now seen corresponding path program 1 times [2024-11-23 18:48:07,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:48:07,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089800898] [2024-11-23 18:48:07,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:48:07,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:49:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:50:05,451 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-23 18:50:05,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:50:05,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089800898] [2024-11-23 18:50:05,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089800898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:50:05,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:50:05,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 18:50:05,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573247981] [2024-11-23 18:50:05,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:50:05,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 18:50:05,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:50:05,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 18:50:05,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2024-11-23 18:50:05,455 INFO L87 Difference]: Start difference. First operand 91 states and 117 transitions. Second operand has 19 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 7 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-23 18:50:09,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:50:09,927 INFO L93 Difference]: Finished difference Result 142 states and 196 transitions. [2024-11-23 18:50:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 18:50:09,928 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 7 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) Word has length 95 [2024-11-23 18:50:09,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:50:09,933 INFO L225 Difference]: With dead ends: 142 [2024-11-23 18:50:09,934 INFO L226 Difference]: Without dead ends: 140 [2024-11-23 18:50:09,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2024-11-23 18:50:09,936 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 91 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:50:09,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1600 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-23 18:50:09,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-23 18:50:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 106. [2024-11-23 18:50:09,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 67 states have internal predecessors, (76), 30 states have call successors, (30), 10 states have call predecessors, (30), 12 states have return successors, (33), 29 states have call predecessors, (33), 29 states have call successors, (33) [2024-11-23 18:50:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 139 transitions. [2024-11-23 18:50:09,960 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 139 transitions. Word has length 95 [2024-11-23 18:50:09,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:50:09,961 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 139 transitions. [2024-11-23 18:50:09,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 7 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-23 18:50:09,961 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 139 transitions. [2024-11-23 18:50:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 18:50:09,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:50:09,964 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-23 18:50:09,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:50:09,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:50:09,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:50:09,965 INFO L85 PathProgramCache]: Analyzing trace with hash -447727567, now seen corresponding path program 1 times [2024-11-23 18:50:09,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:50:09,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696243289] [2024-11-23 18:50:09,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:50:09,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms