./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.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_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/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_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/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_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/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 cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:10:55,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:10:55,123 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:10:55,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:10:55,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:10:55,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:10:55,149 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:10:55,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:10:55,150 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:10:55,150 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:10:55,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:10:55,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:10:55,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:10:55,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:10:55,150 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:10:55,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:10:55,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:10:55,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:10:55,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:10:55,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:10:55,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:10:55,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:10:55,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:10:55,151 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:10:55,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:10:55,151 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:10:55,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:10:55,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:10:55,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:10:55,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:10:55,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:10:55,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:10:55,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:10:55,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:10:55,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:10:55,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:10:55,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:10:55,153 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:10:55,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:10:55,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:10:55,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:10:55,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:10:55,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:10:55,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:10:55,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:10:55,153 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_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/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 -> cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb [2024-12-02 12:10:55,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:10:55,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:10:55,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:10:55,410 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:10:55,410 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:10:55,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i [2024-12-02 12:10:58,063 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/data/96c46f4f7/c4d4b7c376b94ecf87e65931a4fe1316/FLAG7d55a4a13 [2024-12-02 12:10:58,466 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:10:58,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i [2024-12-02 12:10:58,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/data/96c46f4f7/c4d4b7c376b94ecf87e65931a4fe1316/FLAG7d55a4a13 [2024-12-02 12:10:58,512 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/data/96c46f4f7/c4d4b7c376b94ecf87e65931a4fe1316 [2024-12-02 12:10:58,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:10:58,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:10:58,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:10:58,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:10:58,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:10:58,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:10:58" (1/1) ... [2024-12-02 12:10:58,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0027ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:58, skipping insertion in model container [2024-12-02 12:10:58,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:10:58" (1/1) ... [2024-12-02 12:10:58,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:10:58,808 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_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4510,4523] [2024-12-02 12:10:58,815 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_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4570,4583] [2024-12-02 12:10:59,645 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:10:59,646 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:10:59,647 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:10:59,647 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:10:59,648 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:10:59,663 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:10:59,664 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:10:59,666 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:10:59,666 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,370 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,370 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:11:00,478 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:11:00,489 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_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4510,4523] [2024-12-02 12:11:00,490 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_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4570,4583] [2024-12-02 12:11:00,527 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,528 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,528 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,528 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,529 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,534 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,535 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,535 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,536 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-12-02 12:11:00,638 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,638 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:00,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-12-02 12:11:00,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:11:00,883 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:11:00,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00 WrapperNode [2024-12-02 12:11:00,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:11:00,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:11:00,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:11:00,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:11:00,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:00,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,007 INFO L138 Inliner]: procedures = 680, calls = 2662, calls flagged for inlining = 58, calls inlined = 5, statements flattened = 900 [2024-12-02 12:11:01,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:11:01,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:11:01,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:11:01,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:11:01,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,091 INFO L175 MemorySlicer]: Split 592 memory accesses to 5 slices as follows [257, 2, 78, 6, 249]. 43 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [0, 2, 16, 0, 11]. The 499 writes are split as follows [257, 0, 7, 2, 233]. [2024-12-02 12:11:01,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,128 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,131 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:11:01,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:11:01,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:11:01,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:11:01,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (1/1) ... [2024-12-02 12:11:01,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:11:01,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:11:01,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:11:01,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:11:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-12-02 12:11:01,226 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 12:11:01,227 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:11:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 12:11:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-12-02 12:11:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-12-02 12:11:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-12-02 12:11:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2024-12-02 12:11:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2024-12-02 12:11:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:11:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:11:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 12:11:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 12:11:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 12:11:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 12:11:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-12-02 12:11:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-12-02 12:11:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 12:11:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 12:11:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 12:11:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:11:01,230 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-12-02 12:11:01,230 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 12:11:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-12-02 12:11:01,230 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-12-02 12:11:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 12:11:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 12:11:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 12:11:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 12:11:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 12:11:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-12-02 12:11:01,231 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-12-02 12:11:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 12:11:01,231 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 12:11:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2024-12-02 12:11:01,231 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2024-12-02 12:11:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2024-12-02 12:11:01,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:11:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:11:01,496 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:11:01,498 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:11:09,416 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-12-02 12:11:09,416 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:11:09,428 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:11:09,428 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 12:11:09,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:11:09 BoogieIcfgContainer [2024-12-02 12:11:09,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:11:09,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:11:09,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:11:09,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:11:09,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:10:58" (1/3) ... [2024-12-02 12:11:09,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d283b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:11:09, skipping insertion in model container [2024-12-02 12:11:09,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:00" (2/3) ... [2024-12-02 12:11:09,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d283b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:11:09, skipping insertion in model container [2024-12-02 12:11:09,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:11:09" (3/3) ... [2024-12-02 12:11:09,438 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_buffer_harness-1.i [2024-12-02 12:11:09,451 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:11:09,453 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_write_from_whole_buffer_harness-1.i that has 17 procedures, 187 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:11:09,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:11:09,515 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;@529db6ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:11:09,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:11:09,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 113 states have internal predecessors, (134), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 12:11:09,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 12:11:09,531 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:11:09,532 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:11:09,532 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:11:09,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:11:09,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1289631181, now seen corresponding path program 1 times [2024-12-02 12:11:09,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:11:09,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277330551] [2024-12-02 12:11:09,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:09,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-12-02 12:12:32,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:32,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277330551] [2024-12-02 12:12:32,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277330551] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:32,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361826820] [2024-12-02 12:12:32,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:32,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:32,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:32,133 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:32,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:13:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:57,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 8118 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:13:57,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:13:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-12-02 12:13:57,206 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:13:57,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361826820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:13:57,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:13:57,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:13:57,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74931068] [2024-12-02 12:13:57,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:13:57,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:13:57,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:13:57,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:13:57,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:13:57,231 INFO L87 Difference]: Start difference. First operand has 187 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 113 states have internal predecessors, (134), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 12:13:57,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:57,272 INFO L93 Difference]: Finished difference Result 362 states and 521 transitions. [2024-12-02 12:13:57,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:13:57,274 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176 [2024-12-02 12:13:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:57,282 INFO L225 Difference]: With dead ends: 362 [2024-12-02 12:13:57,282 INFO L226 Difference]: Without dead ends: 182 [2024-12-02 12:13:57,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 177 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 12:13:57,288 INFO L435 NwaCegarLoop]: 247 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, 247 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 12:13:57,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:13:57,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-12-02 12:13:57,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-12-02 12:13:57,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 12:13:57,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 242 transitions. [2024-12-02 12:13:57,338 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 242 transitions. Word has length 176 [2024-12-02 12:13:57,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:57,340 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 242 transitions. [2024-12-02 12:13:57,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 12:13:57,340 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 242 transitions. [2024-12-02 12:13:57,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 12:13:57,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:13:57,344 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:57,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:13:57,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:13:57,545 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:13:57,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:13:57,545 INFO L85 PathProgramCache]: Analyzing trace with hash -885041659, now seen corresponding path program 1 times [2024-12-02 12:13:57,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:13:57,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727484180] [2024-12-02 12:13:57,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:57,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:15:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:15:22,164 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 12:15:22,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:15:22,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727484180] [2024-12-02 12:15:22,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727484180] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:15:22,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149856746] [2024-12-02 12:15:22,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:15:22,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:15:22,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:15:22,168 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:15:22,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:16:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:46,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 8118 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:16:46,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:16:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-02 12:16:47,379 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:16:47,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149856746] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:16:47,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:16:47,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 12:16:47,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443589203] [2024-12-02 12:16:47,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:16:47,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:16:47,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:16:47,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:16:47,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:16:47,382 INFO L87 Difference]: Start difference. First operand 182 states and 242 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-12-02 12:16:48,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:16:48,649 INFO L93 Difference]: Finished difference Result 352 states and 472 transitions. [2024-12-02 12:16:48,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:16:48,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 176 [2024-12-02 12:16:48,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:16:48,653 INFO L225 Difference]: With dead ends: 352 [2024-12-02 12:16:48,653 INFO L226 Difference]: Without dead ends: 185 [2024-12-02 12:16:48,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:16:48,655 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 235 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:16:48,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 543 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:16:48,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-12-02 12:16:48,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-12-02 12:16:48,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 109 states have (on average 1.18348623853211) internal successors, (129), 112 states have internal predecessors, (129), 58 states have call successors, (58), 16 states have call predecessors, (58), 17 states have return successors, (64), 57 states have call predecessors, (64), 57 states have call successors, (64) [2024-12-02 12:16:48,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 251 transitions. [2024-12-02 12:16:48,671 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 251 transitions. Word has length 176 [2024-12-02 12:16:48,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:16:48,672 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 251 transitions. [2024-12-02 12:16:48,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-12-02 12:16:48,672 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 251 transitions. [2024-12-02 12:16:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 12:16:48,674 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:48,674 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:48,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 12:16:48,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:48,875 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:48,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1379379832, now seen corresponding path program 1 times [2024-12-02 12:16:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:16:48,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569302031] [2024-12-02 12:16:48,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:48,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:18:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:18:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2024-12-02 12:18:15,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:18:15,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569302031] [2024-12-02 12:18:15,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569302031] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:18:15,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85471928] [2024-12-02 12:18:15,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:18:15,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:18:15,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:18:15,290 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:18:15,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:19:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:19:44,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 8132 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:19:44,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:19:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-12-02 12:19:44,511 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:19:44,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85471928] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:19:44,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:19:44,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-12-02 12:19:44,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363761374] [2024-12-02 12:19:44,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:19:44,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:19:44,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:19:44,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:19:44,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:19:44,514 INFO L87 Difference]: Start difference. First operand 185 states and 251 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 12:19:44,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:19:44,630 INFO L93 Difference]: Finished difference Result 358 states and 493 transitions. [2024-12-02 12:19:44,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:19:44,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 182 [2024-12-02 12:19:44,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:19:44,634 INFO L225 Difference]: With dead ends: 358 [2024-12-02 12:19:44,634 INFO L226 Difference]: Without dead ends: 188 [2024-12-02 12:19:44,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:19:44,636 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 1 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:19:44,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 711 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:19:44,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-12-02 12:19:44,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 187. [2024-12-02 12:19:44,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 114 states have internal predecessors, (131), 58 states have call successors, (58), 16 states have call predecessors, (58), 17 states have return successors, (64), 57 states have call predecessors, (64), 57 states have call successors, (64) [2024-12-02 12:19:44,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 253 transitions. [2024-12-02 12:19:44,657 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 253 transitions. Word has length 182 [2024-12-02 12:19:44,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:19:44,658 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 253 transitions. [2024-12-02 12:19:44,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 12:19:44,658 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 253 transitions. [2024-12-02 12:19:44,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 12:19:44,661 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:19:44,661 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:19:44,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 12:19:44,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:19:44,862 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:19:44,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:19:44,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1968549578, now seen corresponding path program 1 times [2024-12-02 12:19:44,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:19:44,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657153785] [2024-12-02 12:19:44,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:19:44,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:21:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:21:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2024-12-02 12:21:14,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:21:14,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657153785] [2024-12-02 12:21:14,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657153785] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:21:14,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423853100] [2024-12-02 12:21:14,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:21:14,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:21:14,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:21:14,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:21:14,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:23:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:23:06,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 8127 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:23:06,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:23:06,503 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-12-02 12:23:06,503 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:23:06,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423853100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:23:06,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:23:06,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-12-02 12:23:06,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314755629] [2024-12-02 12:23:06,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:23:06,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:23:06,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:23:06,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:23:06,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:23:06,506 INFO L87 Difference]: Start difference. First operand 187 states and 253 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 12:23:06,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:23:06,659 INFO L93 Difference]: Finished difference Result 361 states and 496 transitions. [2024-12-02 12:23:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:23:06,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 182 [2024-12-02 12:23:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:23:06,695 INFO L225 Difference]: With dead ends: 361 [2024-12-02 12:23:06,695 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 12:23:06,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:23:06,698 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:23:06,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 712 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:23:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 12:23:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-12-02 12:23:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 113 states have (on average 1.176991150442478) internal successors, (133), 116 states have internal predecessors, (133), 58 states have call successors, (58), 16 states have call predecessors, (58), 17 states have return successors, (64), 57 states have call predecessors, (64), 57 states have call successors, (64) [2024-12-02 12:23:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 255 transitions. [2024-12-02 12:23:06,722 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 255 transitions. Word has length 182 [2024-12-02 12:23:06,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:23:06,723 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 255 transitions. [2024-12-02 12:23:06,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 12:23:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 255 transitions. [2024-12-02 12:23:06,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 12:23:06,727 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:23:06,727 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:23:06,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 12:23:06,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:23:06,968 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:23:07,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:23:07,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1809038138, now seen corresponding path program 1 times [2024-12-02 12:23:07,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:23:07,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755601981] [2024-12-02 12:23:07,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:23:07,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:55,721 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 12:24:55,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:55,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755601981] [2024-12-02 12:24:55,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755601981] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:24:55,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411792643] [2024-12-02 12:24:55,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:55,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:24:55,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:24:55,725 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:24:55,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2b6afc-a5ee-493b-b2af-8ad89185ae34/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process