./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB --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 065f95e1f01b1c2bb5cc332c26e118823e72d0e75cb3966f20aacf6dc1740b4a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:48:51,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:48:51,150 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:48:51,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:48:51,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:48:51,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:48:51,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:48:51,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:48:51,188 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:48:51,188 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:48:51,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:48:51,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:48:51,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:48:51,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:48:51,189 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:48:51,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:48:51,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:48:51,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:48:51,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:48:51,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:48:51,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:48:51,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:48:51,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:48:51,193 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:48:51,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:48:51,193 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:48:51,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:48:51,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:48:51,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:48:51,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:48:51,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:48:51,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:48:51,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:48:51,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:48:51,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:48:51,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:48:51,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:48:51,194 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:48:51,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:48:51,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:48:51,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:48:51,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:48:51,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:48:51,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:48:51,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:48:51,195 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_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 065f95e1f01b1c2bb5cc332c26e118823e72d0e75cb3966f20aacf6dc1740b4a [2024-11-28 04:48:51,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:48:51,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:48:51,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:48:51,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:48:51,615 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:48:51,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i [2024-11-28 04:48:55,240 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/data/4c4e117e5/6b4d697d232142eaa13546d87dd50d98/FLAG713504b63 [2024-11-28 04:48:55,878 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:48:55,879 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i [2024-11-28 04:48:55,921 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/data/4c4e117e5/6b4d697d232142eaa13546d87dd50d98/FLAG713504b63 [2024-11-28 04:48:55,937 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/data/4c4e117e5/6b4d697d232142eaa13546d87dd50d98 [2024-11-28 04:48:55,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:48:55,941 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:48:55,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:48:55,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:48:55,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:48:55,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:55" (1/1) ... [2024-11-28 04:48:55,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d34015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:55, skipping insertion in model container [2024-11-28 04:48:55,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:55" (1/1) ... [2024-11-28 04:48:56,087 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:48:56,358 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_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i[4499,4512] [2024-11-28 04:48:56,367 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_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i[4559,4572] [2024-11-28 04:48:57,521 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:57,522 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:57,522 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:57,524 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:57,525 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:57,545 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:57,546 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:57,549 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:57,550 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,582 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,583 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:48:58,824 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:48:58,846 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_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i[4499,4512] [2024-11-28 04:48:58,847 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_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness.i[4559,4572] [2024-11-28 04:48:58,931 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,932 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,933 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,934 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,934 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,947 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,947 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,949 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:58,949 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:59,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-28 04:48:59,132 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:59,132 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:48:59,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-11-28 04:48:59,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:48:59,542 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:48:59,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59 WrapperNode [2024-11-28 04:48:59,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:48:59,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:48:59,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:48:59,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:48:59,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:48:59,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:48:59,771 INFO L138 Inliner]: procedures = 680, calls = 2639, calls flagged for inlining = 62, calls inlined = 11, statements flattened = 1027 [2024-11-28 04:48:59,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:48:59,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:48:59,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:48:59,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:48:59,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:48:59,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:48:59,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:48:59,959 INFO L175 MemorySlicer]: Split 567 memory accesses to 8 slices as follows [6, 2, 257, 37, 248, 8, 4, 5]. 45 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [0, 2, 0, 2, 6, 2, 2, 5]. The 504 writes are split as follows [2, 0, 257, 9, 236, 0, 0, 0]. [2024-11-28 04:48:59,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:48:59,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:49:00,031 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:49:00,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:49:00,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:49:00,076 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:49:00,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:49:00,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:49:00,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:49:00,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:49:00,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:49:00,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (1/1) ... [2024-11-28 04:49:00,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:00,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:00,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:49:00,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:49:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-28 04:49:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-28 04:49:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-28 04:49:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-28 04:49:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:49:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 04:49:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 04:49:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-28 04:49:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-28 04:49:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-28 04:49:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-28 04:49:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-28 04:49:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-28 04:49:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-28 04:49:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-11-28 04:49:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:49:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:49:00,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:49:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 04:49:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 04:49:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:49:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:49:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:49:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-28 04:49:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-28 04:49:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-28 04:49:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-28 04:49:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-28 04:49:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-28 04:49:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-28 04:49:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-28 04:49:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-28 04:49:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-28 04:49:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:49:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:49:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:49:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:49:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:49:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:49:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:49:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:49:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:49:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:49:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:49:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 04:49:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh32 [2024-11-28 04:49:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh32 [2024-11-28 04:49:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:49:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:49:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 04:49:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 04:49:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 04:49:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 04:49:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-28 04:49:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:49:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-28 04:49:00,234 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:49:00,234 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:49:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 04:49:00,235 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:49:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:49:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:49:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:49:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:49:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:49:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-28 04:49:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-28 04:49:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-28 04:49:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-28 04:49:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-28 04:49:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-28 04:49:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-28 04:49:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-11-28 04:49:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:49:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:49:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:49:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:49:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:49:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:49:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:49:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:49:00,797 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:49:00,800 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:49:12,203 INFO L? ?]: Removed 248 outVars from TransFormulas that were not future-live. [2024-11-28 04:49:12,203 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:49:12,229 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:49:12,229 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:49:12,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:12 BoogieIcfgContainer [2024-11-28 04:49:12,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:49:12,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:49:12,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:49:12,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:49:12,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:48:55" (1/3) ... [2024-11-28 04:49:12,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22606616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:12, skipping insertion in model container [2024-11-28 04:49:12,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:59" (2/3) ... [2024-11-28 04:49:12,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22606616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:12, skipping insertion in model container [2024-11-28 04:49:12,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:12" (3/3) ... [2024-11-28 04:49:12,245 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be32_harness.i [2024-11-28 04:49:12,272 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:49:12,274 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_be32_harness.i that has 19 procedures, 217 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-11-28 04:49:12,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:49:12,371 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;@235bb7a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:49:12,371 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:49:12,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 121 states have (on average 1.28099173553719) internal successors, (155), 122 states have internal predecessors, (155), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:49:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 04:49:12,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:12,396 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 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] [2024-11-28 04:49:12,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:12,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash -145832389, now seen corresponding path program 1 times [2024-11-28 04:49:12,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:12,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316261670] [2024-11-28 04:49:12,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:12,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-28 04:51:05,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:05,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316261670] [2024-11-28 04:51:05,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316261670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:05,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656107409] [2024-11-28 04:51:05,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:05,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:05,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:05,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:05,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:52:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:56,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 7835 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:52:56,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:56,748 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-28 04:52:56,749 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:52:56,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656107409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:56,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:56,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:52:56,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47048182] [2024-11-28 04:52:56,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:56,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:52:56,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:56,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:52:56,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:52:56,789 INFO L87 Difference]: Start difference. First operand has 182 states, 121 states have (on average 1.28099173553719) internal successors, (155), 122 states have internal predecessors, (155), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 04:52:56,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:56,859 INFO L93 Difference]: Finished difference Result 357 states and 522 transitions. [2024-11-28 04:52:56,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:52:56,861 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2024-11-28 04:52:56,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:56,876 INFO L225 Difference]: With dead ends: 357 [2024-11-28 04:52:56,877 INFO L226 Difference]: Without dead ends: 176 [2024-11-28 04:52:56,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:52:56,889 INFO L435 NwaCegarLoop]: 249 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, 249 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:56,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:52:56,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-28 04:52:56,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-28 04:52:56,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 117 states have internal predecessors, (148), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 04:52:56,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 243 transitions. [2024-11-28 04:52:56,975 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 243 transitions. Word has length 124 [2024-11-28 04:52:56,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:56,979 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 243 transitions. [2024-11-28 04:52:56,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 04:52:56,979 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 243 transitions. [2024-11-28 04:52:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 04:52:56,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:56,987 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 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] [2024-11-28 04:52:57,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:52:57,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:57,194 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:52:57,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:57,195 INFO L85 PathProgramCache]: Analyzing trace with hash -353136715, now seen corresponding path program 1 times [2024-11-28 04:52:57,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:57,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105927876] [2024-11-28 04:52:57,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:57,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-28 04:54:38,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:38,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105927876] [2024-11-28 04:54:38,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105927876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:38,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172955394] [2024-11-28 04:54:38,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:38,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:38,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:38,392 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:38,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:56:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:11,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 7835 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:56:11,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-28 04:56:12,212 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:12,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172955394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:12,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:12,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 04:56:12,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574942660] [2024-11-28 04:56:12,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:12,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:56:12,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:12,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:56:12,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:12,216 INFO L87 Difference]: Start difference. First operand 176 states and 243 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 04:56:13,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:13,606 INFO L93 Difference]: Finished difference Result 328 states and 465 transitions. [2024-11-28 04:56:13,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:56:13,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 124 [2024-11-28 04:56:13,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:13,612 INFO L225 Difference]: With dead ends: 328 [2024-11-28 04:56:13,612 INFO L226 Difference]: Without dead ends: 179 [2024-11-28 04:56:13,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:56:13,615 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 251 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:13,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 536 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:56:13,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-28 04:56:13,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-28 04:56:13,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 118 states have (on average 1.271186440677966) internal successors, (150), 120 states have internal predecessors, (150), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (55), 47 states have call predecessors, (55), 47 states have call successors, (55) [2024-11-28 04:56:13,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 253 transitions. [2024-11-28 04:56:13,642 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 253 transitions. Word has length 124 [2024-11-28 04:56:13,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:13,643 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 253 transitions. [2024-11-28 04:56:13,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 04:56:13,643 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 253 transitions. [2024-11-28 04:56:13,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 04:56:13,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:13,646 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 4, 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] [2024-11-28 04:56:13,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:13,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:13,847 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:13,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:13,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1091537318, now seen corresponding path program 1 times [2024-11-28 04:56:13,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:13,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568968737] [2024-11-28 04:56:13,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:13,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-28 04:57:50,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:50,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568968737] [2024-11-28 04:57:50,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568968737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:50,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153780496] [2024-11-28 04:57:50,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:50,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:50,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:50,882 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:50,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:59:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:35,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 7840 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:59:35,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-28 04:59:36,235 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:36,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153780496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:36,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:59:36,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-28 04:59:36,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375937061] [2024-11-28 04:59:36,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:36,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:59:36,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:36,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:59:36,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:59:36,238 INFO L87 Difference]: Start difference. First operand 179 states and 253 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 04:59:37,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:37,922 INFO L93 Difference]: Finished difference Result 314 states and 446 transitions. [2024-11-28 04:59:37,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:59:37,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 126 [2024-11-28 04:59:37,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:37,926 INFO L225 Difference]: With dead ends: 314 [2024-11-28 04:59:37,926 INFO L226 Difference]: Without dead ends: 179 [2024-11-28 04:59:37,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:59:37,928 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 251 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:37,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 722 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:59:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-28 04:59:37,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-28 04:59:37,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 118 states have (on average 1.271186440677966) internal successors, (150), 120 states have internal predecessors, (150), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2024-11-28 04:59:37,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 251 transitions. [2024-11-28 04:59:37,962 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 251 transitions. Word has length 126 [2024-11-28 04:59:37,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:37,966 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 251 transitions. [2024-11-28 04:59:37,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 04:59:37,967 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 251 transitions. [2024-11-28 04:59:37,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:59:37,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:37,969 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 3, 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] [2024-11-28 04:59:38,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:59:38,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95aa659c-6c00-4e17-a3d7-c2fc0da9660c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:38,173 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:38,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:38,174 INFO L85 PathProgramCache]: Analyzing trace with hash 88261397, now seen corresponding path program 2 times [2024-11-28 04:59:38,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:38,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65408323] [2024-11-28 04:59:38,174 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:59:38,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:20,451 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:01:20,452 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:25,333 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-28 05:01:25,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:25,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65408323] [2024-11-28 05:01:25,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65408323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:01:25,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:01:25,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:01:25,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632844275] [2024-11-28 05:01:25,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:01:25,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:01:25,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:25,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:01:25,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:01:25,336 INFO L87 Difference]: Start difference. First operand 179 states and 251 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 05:01:26,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:26,894 INFO L93 Difference]: Finished difference Result 308 states and 433 transitions. [2024-11-28 05:01:26,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:01:26,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) Word has length 128 [2024-11-28 05:01:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:26,899 INFO L225 Difference]: With dead ends: 308 [2024-11-28 05:01:26,901 INFO L226 Difference]: Without dead ends: 179 [2024-11-28 05:01:26,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:01:26,904 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 184 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:26,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1508 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 05:01:26,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-28 05:01:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-28 05:01:26,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 118 states have (on average 1.271186440677966) internal successors, (150), 120 states have internal predecessors, (150), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2024-11-28 05:01:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 246 transitions. [2024-11-28 05:01:26,948 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 246 transitions. Word has length 128 [2024-11-28 05:01:26,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:01:26,949 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 246 transitions. [2024-11-28 05:01:26,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 05:01:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 246 transitions. [2024-11-28 05:01:26,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 05:01:26,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:01:26,952 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 5, 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] [2024-11-28 05:01:26,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:01:26,953 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:01:26,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:26,954 INFO L85 PathProgramCache]: Analyzing trace with hash 275188036, now seen corresponding path program 1 times [2024-11-28 05:01:26,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:26,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066567261] [2024-11-28 05:01:26,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:01:26,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-28 05:03:13,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:13,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066567261] [2024-11-28 05:03:13,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066567261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:13,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:03:13,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:03:13,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134110005] [2024-11-28 05:03:13,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:13,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:03:13,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:13,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:03:13,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:03:13,043 INFO L87 Difference]: Start difference. First operand 179 states and 246 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 05:03:13,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:13,701 INFO L93 Difference]: Finished difference Result 191 states and 267 transitions. [2024-11-28 05:03:13,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:03:13,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 134 [2024-11-28 05:03:13,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:13,705 INFO L225 Difference]: With dead ends: 191 [2024-11-28 05:03:13,705 INFO L226 Difference]: Without dead ends: 189 [2024-11-28 05:03:13,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:03:13,707 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 3 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:13,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1660 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:03:13,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-28 05:03:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2024-11-28 05:03:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 127 states have internal predecessors, (156), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (59), 48 states have call predecessors, (59), 48 states have call successors, (59) [2024-11-28 05:03:13,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2024-11-28 05:03:13,731 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 134 [2024-11-28 05:03:13,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:13,732 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2024-11-28 05:03:13,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 05:03:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2024-11-28 05:03:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 05:03:13,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:13,734 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 4, 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] [2024-11-28 05:03:13,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:03:13,735 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:03:13,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:13,735 INFO L85 PathProgramCache]: Analyzing trace with hash -147665524, now seen corresponding path program 1 times [2024-11-28 05:03:13,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:13,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184196995] [2024-11-28 05:03:13,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:13,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms