./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1 --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 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:42:55,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:42:55,116 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 11:42:55,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:42:55,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:42:55,143 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:42:55,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:42:55,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:42:55,145 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:42:55,145 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:42:55,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:42:55,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:42:55,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:42:55,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:42:55,145 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:42:55,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:42:55,146 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:42:55,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:42:55,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:42:55,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:42:55,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:42:55,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:42:55,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:42:55,146 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:42:55,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:42:55,147 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:42:55,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:42:55,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:42:55,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:42:55,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:42:55,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:42:55,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:42:55,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:42:55,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:42:55,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:42:55,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:42:55,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:42:55,148 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:42:55,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:42:55,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:42:55,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:42:55,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:42:55,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:42:55,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:42:55,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:42:55,148 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_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1 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 -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2024-12-02 11:42:55,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:42:55,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:42:55,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:42:55,393 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:42:55,393 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:42:55,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2024-12-02 11:42:58,093 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/data/6437a3a4d/f11f392ee4b14b988ac357f7ef8a05c3/FLAG60e68b334 [2024-12-02 11:42:58,464 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:42:58,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2024-12-02 11:42:58,489 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/data/6437a3a4d/f11f392ee4b14b988ac357f7ef8a05c3/FLAG60e68b334 [2024-12-02 11:42:58,503 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/data/6437a3a4d/f11f392ee4b14b988ac357f7ef8a05c3 [2024-12-02 11:42:58,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:42:58,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:42:58,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:42:58,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:42:58,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:42:58,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:42:58" (1/1) ... [2024-12-02 11:42:58,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cd9001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:42:58, skipping insertion in model container [2024-12-02 11:42:58,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:42:58" (1/1) ... [2024-12-02 11:42:58,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:42:58,783 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_b2ccd08e-9505-4310-8453-0d867571c747/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2024-12-02 11:42:58,789 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_b2ccd08e-9505-4310-8453-0d867571c747/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2024-12-02 11:42:59,460 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,460 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,461 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,461 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,462 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,473 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,473 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,475 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,475 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,476 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,477 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,477 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,478 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,895 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,902 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:42:59,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:42:59,995 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:43:00,005 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_b2ccd08e-9505-4310-8453-0d867571c747/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2024-12-02 11:43:00,006 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_b2ccd08e-9505-4310-8453-0d867571c747/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2024-12-02 11:43:00,055 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,055 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,055 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,055 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,056 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,062 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,063 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,064 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,064 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,066 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,066 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,067 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,067 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,127 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,133 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:43:00,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2024-12-02 11:43:00,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:43:00,312 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:43:00,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00 WrapperNode [2024-12-02 11:43:00,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:43:00,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:43:00,313 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:43:00,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:43:00,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,410 INFO L138 Inliner]: procedures = 679, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 592 [2024-12-02 11:43:00,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:43:00,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:43:00,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:43:00,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:43:00,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,424 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,476 INFO L175 MemorySlicer]: Split 303 memory accesses to 6 slices as follows [2, 7, 238, 47, 3, 6]. 79 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 5, 6, 10, 1, 0]. The 238 writes are split as follows [0, 0, 232, 3, 1, 2]. [2024-12-02 11:43:00,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,518 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:43:00,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:43:00,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:43:00,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:43:00,541 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (1/1) ... [2024-12-02 11:43:00,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:43:00,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:00,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:43:00,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:43:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:43:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-12-02 11:43:00,588 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-12-02 11:43:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-12-02 11:43:00,588 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 11:43:00,589 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-12-02 11:43:00,589 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-12-02 11:43:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 11:43:00,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:43:00,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 11:43:00,590 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 11:43:00,590 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 11:43:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-12-02 11:43:00,590 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-12-02 11:43:00,591 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:43:00,591 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:43:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-12-02 11:43:00,592 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-12-02 11:43:00,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:43:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:43:00,593 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-12-02 11:43:00,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-12-02 11:43:00,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:43:00,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:43:00,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:43:00,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:43:00,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:43:00,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:43:00,828 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:43:00,830 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:43:06,357 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-12-02 11:43:06,357 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:43:06,366 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:43:06,367 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:43:06,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:43:06 BoogieIcfgContainer [2024-12-02 11:43:06,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:43:06,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:43:06,369 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:43:06,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:43:06,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:42:58" (1/3) ... [2024-12-02 11:43:06,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2add4269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:43:06, skipping insertion in model container [2024-12-02 11:43:06,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:00" (2/3) ... [2024-12-02 11:43:06,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2add4269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:43:06, skipping insertion in model container [2024-12-02 11:43:06,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:43:06" (3/3) ... [2024-12-02 11:43:06,375 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness.i [2024-12-02 11:43:06,385 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:43:06,386 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_length_harness.i that has 14 procedures, 123 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 11:43:06,429 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:43:06,439 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;@5a4837b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:43:06,440 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:43:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 11:43:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 11:43:06,450 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:06,451 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, 1, 1] [2024-12-02 11:43:06,451 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:06,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:06,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1876716262, now seen corresponding path program 1 times [2024-12-02 11:43:06,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:06,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442047341] [2024-12-02 11:43:06,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:06,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:12,316 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-02 11:43:12,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:12,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442047341] [2024-12-02 11:43:12,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442047341] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:12,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833415524] [2024-12-02 11:43:12,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:12,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:12,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:12,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:12,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:43:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:17,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 4076 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:43:17,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-02 11:43:17,708 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:17,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833415524] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:17,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:43:17,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:43:17,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163926013] [2024-12-02 11:43:17,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:17,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:43:17,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:17,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:43:17,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:43:17,729 INFO L87 Difference]: Start difference. First operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-12-02 11:43:17,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:17,754 INFO L93 Difference]: Finished difference Result 239 states and 319 transitions. [2024-12-02 11:43:17,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:43:17,756 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 71 [2024-12-02 11:43:17,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:17,762 INFO L225 Difference]: With dead ends: 239 [2024-12-02 11:43:17,762 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 11:43:17,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:43:17,766 INFO L435 NwaCegarLoop]: 152 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, 152 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 [2024-12-02 11:43:17,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:43:17,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 11:43:17,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-12-02 11:43:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 72 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 11:43:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2024-12-02 11:43:17,799 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 71 [2024-12-02 11:43:17,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:17,800 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2024-12-02 11:43:17,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-12-02 11:43:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2024-12-02 11:43:17,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 11:43:17,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:17,803 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, 1, 1] [2024-12-02 11:43:17,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:43:18,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:43:18,003 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:18,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:18,004 INFO L85 PathProgramCache]: Analyzing trace with hash 879930080, now seen corresponding path program 1 times [2024-12-02 11:43:18,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:18,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924671244] [2024-12-02 11:43:18,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:18,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 11:43:23,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:23,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924671244] [2024-12-02 11:43:23,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924671244] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:23,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861706141] [2024-12-02 11:43:23,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:23,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:23,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:23,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:23,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:43:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:29,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 4076 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:43:29,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-12-02 11:43:29,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:29,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861706141] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:29,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:43:29,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 11:43:29,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989472894] [2024-12-02 11:43:29,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:29,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:43:29,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:29,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:43:29,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:43:29,555 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-12-02 11:43:30,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:30,528 INFO L93 Difference]: Finished difference Result 193 states and 240 transitions. [2024-12-02 11:43:30,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:43:30,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 71 [2024-12-02 11:43:30,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:30,531 INFO L225 Difference]: With dead ends: 193 [2024-12-02 11:43:30,531 INFO L226 Difference]: Without dead ends: 116 [2024-12-02 11:43:30,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:43:30,532 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:30,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 419 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:43:30,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-12-02 11:43:30,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-12-02 11:43:30,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 74 states have internal predecessors, (83), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2024-12-02 11:43:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2024-12-02 11:43:30,544 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 71 [2024-12-02 11:43:30,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:30,544 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2024-12-02 11:43:30,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-12-02 11:43:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2024-12-02 11:43:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 11:43:30,546 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:30,546 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, 1, 1] [2024-12-02 11:43:30,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:43:30,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:30,747 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:30,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:30,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1619368212, now seen corresponding path program 1 times [2024-12-02 11:43:30,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:30,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889464179] [2024-12-02 11:43:30,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:30,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:36,815 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 11:43:36,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:36,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889464179] [2024-12-02 11:43:36,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889464179] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:36,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977589497] [2024-12-02 11:43:36,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:36,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:36,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:36,818 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:36,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:43:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:42,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 4203 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:43:42,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 11:43:42,913 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:42,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977589497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:42,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:43:42,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-12-02 11:43:42,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798727677] [2024-12-02 11:43:42,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:42,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:43:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:42,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:43:42,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:43:42,915 INFO L87 Difference]: Start difference. First operand 116 states and 143 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2024-12-02 11:43:44,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:44,628 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2024-12-02 11:43:44,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:43:44,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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 86 [2024-12-02 11:43:44,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:44,631 INFO L225 Difference]: With dead ends: 182 [2024-12-02 11:43:44,631 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 11:43:44,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:43:44,633 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 151 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:44,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 598 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 11:43:44,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 11:43:44,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-12-02 11:43:44,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 72 states have internal predecessors, (81), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 11:43:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2024-12-02 11:43:44,647 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 86 [2024-12-02 11:43:44,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:44,647 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2024-12-02 11:43:44,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2024-12-02 11:43:44,647 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2024-12-02 11:43:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 11:43:44,649 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:44,649 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, 1, 1] [2024-12-02 11:43:44,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:43:44,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:44,850 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:44,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:44,850 INFO L85 PathProgramCache]: Analyzing trace with hash 626282708, now seen corresponding path program 1 times [2024-12-02 11:43:44,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:44,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65345712] [2024-12-02 11:43:44,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:44,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 11:43:52,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413144702] [2024-12-02 11:43:52,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:52,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:52,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:52,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:52,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ccd08e-9505-4310-8453-0d867571c747/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process