./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/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_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/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_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/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 1df728cd24e7928098236359b418886ddc7ee9c354239a532e7faabbedf2084b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:09:13,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:09:13,705 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 13:09:13,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:09:13,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:09:13,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:09:13,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:09:13,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:09:13,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:09:13,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:09:13,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:09:13,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:09:13,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:09:13,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:09:13,733 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:09:13,734 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:09:13,734 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:09:13,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:09:13,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:09:13,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:09:13,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:09:13,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:09:13,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:09:13,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:09:13,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:09:13,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:09:13,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:09:13,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:09:13,735 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:09:13,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:09:13,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:09:13,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:09:13,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:09:13,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:09:13,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:09:13,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:09:13,736 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_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/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 -> 1df728cd24e7928098236359b418886ddc7ee9c354239a532e7faabbedf2084b [2024-12-02 13:09:13,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:09:13,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:09:13,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:09:13,948 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:09:13,948 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:09:13,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i [2024-12-02 13:09:16,544 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/data/792733d54/a79af16be4fe4f3591dcd0d9d2e3d600/FLAG17acae8e9 [2024-12-02 13:09:16,909 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:09:16,909 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i [2024-12-02 13:09:16,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/data/792733d54/a79af16be4fe4f3591dcd0d9d2e3d600/FLAG17acae8e9 [2024-12-02 13:09:17,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/data/792733d54/a79af16be4fe4f3591dcd0d9d2e3d600 [2024-12-02 13:09:17,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:09:17,109 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:09:17,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:09:17,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:09:17,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:09:17,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:09:17" (1/1) ... [2024-12-02 13:09:17,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682d027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:17, skipping insertion in model container [2024-12-02 13:09:17,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:09:17" (1/1) ... [2024-12-02 13:09:17,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:09:17,399 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i[4494,4507] [2024-12-02 13:09:17,405 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_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i[4554,4567] [2024-12-02 13:09:18,086 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,087 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,087 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,088 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,089 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,102 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,103 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,105 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,105 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,698 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,699 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:09:18,798 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:09:18,809 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_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i[4494,4507] [2024-12-02 13:09:18,809 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_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i[4554,4567] [2024-12-02 13:09:18,839 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,839 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,840 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,840 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,841 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,846 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,847 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,847 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,848 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-12-02 13:09:18,940 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,941 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 13:09:18,976 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-12-02 13:09:18,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:09:19,150 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:09:19,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19 WrapperNode [2024-12-02 13:09:19,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:09:19,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:09:19,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:09:19,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:09:19,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,273 INFO L138 Inliner]: procedures = 679, calls = 2625, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 990 [2024-12-02 13:09:19,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:09:19,274 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:09:19,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:09:19,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:09:19,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,357 INFO L175 MemorySlicer]: Split 559 memory accesses to 8 slices as follows [2, 257, 8, 6, 243, 4, 34, 5]. 46 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 2, 0, 6, 2, 2, 5]. The 501 writes are split as follows [0, 257, 0, 2, 233, 0, 9, 0]. [2024-12-02 13:09:19,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,396 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:09:19,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:09:19,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:09:19,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:09:19,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (1/1) ... [2024-12-02 13:09:19,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:09:19,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:09:19,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:09:19,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:09:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-12-02 13:09:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-12-02 13:09:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 13:09:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-12-02 13:09:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 13:09:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 13:09:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 13:09:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 13:09:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 13:09:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 13:09:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 13:09:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 13:09:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 13:09:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 13:09:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 13:09:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:09:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:09:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 13:09:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 13:09:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 13:09:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:09:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 13:09:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 13:09:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-12-02 13:09:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 13:09:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 13:09:19,808 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:09:19,810 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:09:28,191 INFO L? ?]: Removed 234 outVars from TransFormulas that were not future-live. [2024-12-02 13:09:28,191 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:09:28,202 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:09:28,202 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 13:09:28,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:28 BoogieIcfgContainer [2024-12-02 13:09:28,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:09:28,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:09:28,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:09:28,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:09:28,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:09:17" (1/3) ... [2024-12-02 13:09:28,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35105ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:09:28, skipping insertion in model container [2024-12-02 13:09:28,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:19" (2/3) ... [2024-12-02 13:09:28,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35105ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:09:28, skipping insertion in model container [2024-12-02 13:09:28,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:28" (3/3) ... [2024-12-02 13:09:28,211 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness_negated.i [2024-12-02 13:09:28,225 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:09:28,227 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_harness_negated.i that has 17 procedures, 184 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-12-02 13:09:28,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:09:28,289 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;@6306acc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:09:28,290 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:09:28,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 105 states have internal predecessors, (137), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 13:09:28,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 13:09:28,300 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:28,300 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:28,301 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:28,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:28,304 INFO L85 PathProgramCache]: Analyzing trace with hash -406892630, now seen corresponding path program 1 times [2024-12-02 13:09:28,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:28,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792759416] [2024-12-02 13:09:28,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:28,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:53,278 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-12-02 13:10:53,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:53,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792759416] [2024-12-02 13:10:53,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792759416] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:10:53,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029130770] [2024-12-02 13:10:53,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:53,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:10:53,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:10:53,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:10:53,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:12:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:16,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 7693 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:12:16,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:12:17,307 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 13:12:17,307 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:12:17,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029130770] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:12:17,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:12:17,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 13:12:17,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283980896] [2024-12-02 13:12:17,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:12:17,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:12:17,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:12:17,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:12:17,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:12:17,331 INFO L87 Difference]: Start difference. First operand has 149 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 105 states have internal predecessors, (137), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 13:12:18,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:12:18,318 INFO L93 Difference]: Finished difference Result 298 states and 439 transitions. [2024-12-02 13:12:18,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:12:18,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2024-12-02 13:12:18,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:12:18,328 INFO L225 Difference]: With dead ends: 298 [2024-12-02 13:12:18,328 INFO L226 Difference]: Without dead ends: 142 [2024-12-02 13:12:18,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:12:18,334 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 214 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:12:18,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 466 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:12:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-12-02 13:12:18,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-12-02 13:12:18,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 101 states have internal predecessors, (127), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2024-12-02 13:12:18,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 198 transitions. [2024-12-02 13:12:18,374 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 198 transitions. Word has length 84 [2024-12-02 13:12:18,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:12:18,374 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 198 transitions. [2024-12-02 13:12:18,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 13:12:18,374 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 198 transitions. [2024-12-02 13:12:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 13:12:18,377 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:12:18,377 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2024-12-02 13:12:18,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:12:18,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:12:18,578 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:12:18,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:12:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2026965135, now seen corresponding path program 1 times [2024-12-02 13:12:18,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:12:18,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848098731] [2024-12-02 13:12:18,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:13:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:13:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-12-02 13:13:43,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:13:43,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848098731] [2024-12-02 13:13:43,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848098731] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:13:43,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143541343] [2024-12-02 13:13:43,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:13:43,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:13:43,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:13:43,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:13:43,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:15:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:09,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 7698 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:15:09,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:15:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:15:10,045 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:15:10,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143541343] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:10,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:15:10,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-12-02 13:15:10,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394381216] [2024-12-02 13:15:10,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:10,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:15:10,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:10,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:15:10,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:15:10,048 INFO L87 Difference]: Start difference. First operand 142 states and 198 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 13:15:12,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:12,078 INFO L93 Difference]: Finished difference Result 253 states and 355 transitions. [2024-12-02 13:15:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:15:12,079 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 86 [2024-12-02 13:15:12,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:12,082 INFO L225 Difference]: With dead ends: 253 [2024-12-02 13:15:12,082 INFO L226 Difference]: Without dead ends: 142 [2024-12-02 13:15:12,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:15:12,084 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 287 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:12,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 740 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 13:15:12,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-12-02 13:15:12,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-12-02 13:15:12,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 101 states have internal predecessors, (127), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2024-12-02 13:15:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2024-12-02 13:15:12,101 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 86 [2024-12-02 13:15:12,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:12,102 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2024-12-02 13:15:12,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 13:15:12,102 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2024-12-02 13:15:12,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 13:15:12,104 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:12,104 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2024-12-02 13:15:12,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 13:15:12,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:15:12,305 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:12,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1111206580, now seen corresponding path program 2 times [2024-12-02 13:15:12,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:12,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449406697] [2024-12-02 13:15:12,305 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:15:12,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:16:36,868 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:16:36,869 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:16:41,085 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-12-02 13:16:41,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:16:41,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449406697] [2024-12-02 13:16:41,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449406697] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:16:41,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:16:41,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:16:41,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850101344] [2024-12-02 13:16:41,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:16:41,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:16:41,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:16:41,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:16:41,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:16:41,087 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:16:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:16:41,444 INFO L93 Difference]: Finished difference Result 150 states and 203 transitions. [2024-12-02 13:16:41,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:16:41,445 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 88 [2024-12-02 13:16:41,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:16:41,447 INFO L225 Difference]: With dead ends: 150 [2024-12-02 13:16:41,447 INFO L226 Difference]: Without dead ends: 148 [2024-12-02 13:16:41,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:16:41,448 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 3 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:16:41,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1099 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:16:41,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-12-02 13:16:41,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2024-12-02 13:16:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 104 states have internal predecessors, (130), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 32 states have call predecessors, (35), 32 states have call successors, (35) [2024-12-02 13:16:41,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 200 transitions. [2024-12-02 13:16:41,501 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 200 transitions. Word has length 88 [2024-12-02 13:16:41,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:16:41,501 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 200 transitions. [2024-12-02 13:16:41,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:16:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 200 transitions. [2024-12-02 13:16:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 13:16:41,507 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:16:41,507 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1] [2024-12-02 13:16:41,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:16:41,507 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:16:41,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:16:41,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1976617241, now seen corresponding path program 3 times [2024-12-02 13:16:41,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:16:41,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658258970] [2024-12-02 13:16:41,508 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:16:41,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:18:04,441 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-02 13:18:04,441 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:18:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 13:18:07,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:18:07,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658258970] [2024-12-02 13:18:07,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658258970] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:18:07,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397750431] [2024-12-02 13:18:07,735 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:18:07,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:18:07,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:18:07,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:18:07,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d1d137-442e-4bb1-8ee2-009bc38bfccb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process