./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_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_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/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_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/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_46a3aec7-a89e-4fa0-8920-30448ae4d979/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 f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:52:07,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:52:07,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 14:52:07,802 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:52:07,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:52:07,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:52:07,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:52:07,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:52:07,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:52:07,824 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:52:07,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:52:07,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:52:07,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:52:07,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:52:07,825 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:52:07,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:52:07,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:52:07,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:52:07,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:52:07,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:52:07,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:52:07,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:52:07,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:52:07,826 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:52:07,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:52:07,826 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:52:07,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:52:07,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:52:07,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:52:07,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:52:07,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:52:07,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:52:07,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:52:07,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:52:07,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:52:07,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:52:07,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:52:07,827 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:52:07,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:52:07,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:52:07,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:52:07,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:52:07,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:52:07,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:52:07,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:52:07,828 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_46a3aec7-a89e-4fa0-8920-30448ae4d979/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 -> f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb [2024-12-02 14:52:08,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:52:08,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:52:08,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:52:08,084 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:52:08,084 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:52:08,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2024-12-02 14:52:10,783 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/data/26276d92c/6daf850d487c46c59d650d57c7f6ef79/FLAG8b367d6bc [2024-12-02 14:52:11,186 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:52:11,186 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2024-12-02 14:52:11,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/data/26276d92c/6daf850d487c46c59d650d57c7f6ef79/FLAG8b367d6bc [2024-12-02 14:52:11,333 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/data/26276d92c/6daf850d487c46c59d650d57c7f6ef79 [2024-12-02 14:52:11,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:52:11,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:52:11,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:52:11,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:52:11,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:52:11,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:52:11" (1/1) ... [2024-12-02 14:52:11,342 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7348c63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:11, skipping insertion in model container [2024-12-02 14:52:11,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:52:11" (1/1) ... [2024-12-02 14:52:11,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:52:11,578 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_46a3aec7-a89e-4fa0-8920-30448ae4d979/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2024-12-02 14:52:11,583 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_46a3aec7-a89e-4fa0-8920-30448ae4d979/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2024-12-02 14:52:12,374 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:12,375 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:12,375 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:12,376 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:12,377 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:12,391 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:12,392 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:12,394 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:12,394 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,010 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,011 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:52:13,133 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:52:13,146 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_46a3aec7-a89e-4fa0-8920-30448ae4d979/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2024-12-02 14:52:13,146 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_46a3aec7-a89e-4fa0-8920-30448ae4d979/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2024-12-02 14:52:13,186 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,186 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,186 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,187 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,187 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,193 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,193 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,194 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,194 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-12-02 14:52:13,293 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,293 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:52:13,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-12-02 14:52:13,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:52:13,492 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:52:13,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13 WrapperNode [2024-12-02 14:52:13,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:52:13,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:52:13,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:52:13,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:52:13,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,608 INFO L138 Inliner]: procedures = 679, calls = 2625, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 1000 [2024-12-02 14:52:13,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:52:13,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:52:13,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:52:13,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:52:13,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,623 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,678 INFO L175 MemorySlicer]: Split 555 memory accesses to 8 slices as follows [2, 7, 257, 4, 4, 34, 242, 5]. 46 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 2, 0, 2, 0, 2, 6, 5]. The 501 writes are split as follows [0, 0, 257, 0, 2, 9, 233, 0]. [2024-12-02 14:52:13,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,711 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:52:13,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:52:13,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:52:13,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:52:13,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (1/1) ... [2024-12-02 14:52:13,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:52:13,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:52:13,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:52:13,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:52:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-12-02 14:52:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-12-02 14:52:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-12-02 14:52:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-12-02 14:52:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 14:52:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 14:52:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 14:52:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-12-02 14:52:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-12-02 14:52:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 14:52:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 14:52:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 14:52:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 14:52:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 14:52:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 14:52:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 14:52:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 14:52:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 14:52:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 14:52:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 14:52:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 14:52:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 14:52:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 14:52:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 14:52:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 14:52:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 14:52:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 14:52:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:52:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 14:52:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 14:52:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:52:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 14:52:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 14:52:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 14:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 14:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 14:52:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 14:52:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 14:52:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 14:52:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 14:52:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 14:52:14,120 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:52:14,122 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:52:22,162 INFO L? ?]: Removed 230 outVars from TransFormulas that were not future-live. [2024-12-02 14:52:22,162 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:52:22,173 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:52:22,173 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 14:52:22,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:52:22 BoogieIcfgContainer [2024-12-02 14:52:22,174 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:52:22,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:52:22,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:52:22,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:52:22,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:52:11" (1/3) ... [2024-12-02 14:52:22,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b35dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:52:22, skipping insertion in model container [2024-12-02 14:52:22,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:52:13" (2/3) ... [2024-12-02 14:52:22,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b35dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:52:22, skipping insertion in model container [2024-12-02 14:52:22,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:52:22" (3/3) ... [2024-12-02 14:52:22,182 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness.i [2024-12-02 14:52:22,196 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:52:22,197 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_u8_harness.i that has 16 procedures, 186 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-12-02 14:52:22,252 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:52:22,263 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;@72699e5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:52:22,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:52:22,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 14:52:22,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 14:52:22,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:22,279 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:22,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:22,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:22,284 INFO L85 PathProgramCache]: Analyzing trace with hash 358773453, now seen corresponding path program 1 times [2024-12-02 14:52:22,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:22,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212268855] [2024-12-02 14:52:22,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:22,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-02 14:53:46,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:46,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212268855] [2024-12-02 14:53:46,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212268855] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:53:46,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101099661] [2024-12-02 14:53:46,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:46,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:53:46,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:53:46,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:53:46,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:55:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:10,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 7755 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:55:10,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:55:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-02 14:55:10,770 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:55:10,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101099661] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:10,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:55:10,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:55:10,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081358052] [2024-12-02 14:55:10,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:10,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:55:10,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:10,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:55:10,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:55:10,794 INFO L87 Difference]: Start difference. First operand has 151 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 14:55:10,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:10,825 INFO L93 Difference]: Finished difference Result 299 states and 441 transitions. [2024-12-02 14:55:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:55:10,827 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2024-12-02 14:55:10,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:10,832 INFO L225 Difference]: With dead ends: 299 [2024-12-02 14:55:10,832 INFO L226 Difference]: Without dead ends: 145 [2024-12-02 14:55:10,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 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 14:55:10,837 INFO L435 NwaCegarLoop]: 208 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, 208 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 14:55:10,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:10,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-12-02 14:55:10,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-12-02 14:55:10,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 98 states have (on average 1.2857142857142858) internal successors, (126), 99 states have internal predecessors, (126), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 14:55:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 201 transitions. [2024-12-02 14:55:10,880 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 201 transitions. Word has length 107 [2024-12-02 14:55:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:10,880 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 201 transitions. [2024-12-02 14:55:10,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 14:55:10,881 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 201 transitions. [2024-12-02 14:55:10,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 14:55:10,883 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:10,883 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:55:10,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:55:11,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:55:11,084 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:11,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:11,084 INFO L85 PathProgramCache]: Analyzing trace with hash -696448629, now seen corresponding path program 1 times [2024-12-02 14:55:11,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:11,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410866655] [2024-12-02 14:55:11,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:11,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:35,813 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-02 14:56:35,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:35,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410866655] [2024-12-02 14:56:35,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410866655] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:56:35,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868894130] [2024-12-02 14:56:35,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:35,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:56:35,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:56:35,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:56:35,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:57:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:58,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 7755 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 14:57:58,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-12-02 14:57:59,052 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:57:59,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868894130] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:57:59,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:57:59,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 14:57:59,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507753660] [2024-12-02 14:57:59,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:57:59,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:57:59,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:59,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:57:59,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:57:59,054 INFO L87 Difference]: Start difference. First operand 145 states and 201 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 14:58:00,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:58:00,111 INFO L93 Difference]: Finished difference Result 274 states and 391 transitions. [2024-12-02 14:58:00,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:58:00,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 107 [2024-12-02 14:58:00,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:58:00,115 INFO L225 Difference]: With dead ends: 274 [2024-12-02 14:58:00,115 INFO L226 Difference]: Without dead ends: 148 [2024-12-02 14:58:00,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:58:00,118 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 207 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:58:00,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 448 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:58:00,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-12-02 14:58:00,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-12-02 14:58:00,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 100 states have (on average 1.28) internal successors, (128), 102 states have internal predecessors, (128), 38 states have call successors, (38), 8 states have call predecessors, (38), 9 states have return successors, (45), 37 states have call predecessors, (45), 37 states have call successors, (45) [2024-12-02 14:58:00,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 211 transitions. [2024-12-02 14:58:00,140 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 211 transitions. Word has length 107 [2024-12-02 14:58:00,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:58:00,140 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 211 transitions. [2024-12-02 14:58:00,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 14:58:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 211 transitions. [2024-12-02 14:58:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 14:58:00,143 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:58:00,143 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:58:00,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 14:58:00,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:58:00,343 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:58:00,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:58:00,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1579308986, now seen corresponding path program 1 times [2024-12-02 14:58:00,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:58:00,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341980080] [2024-12-02 14:58:00,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:00,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:59:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:59:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-02 14:59:23,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:59:23,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341980080] [2024-12-02 14:59:23,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341980080] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:59:23,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005378878] [2024-12-02 14:59:23,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:59:23,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:59:23,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:59:23,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:59:23,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:00:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:00:46,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 7760 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 15:00:46,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:00:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 15:00:46,911 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:00:46,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005378878] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:00:46,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:00:46,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-12-02 15:00:46,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148245750] [2024-12-02 15:00:46,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:00:46,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:00:46,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:00:46,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:00:46,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:00:46,914 INFO L87 Difference]: Start difference. First operand 148 states and 211 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 15:00:48,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:00:48,218 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2024-12-02 15:00:48,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:00:48,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 109 [2024-12-02 15:00:48,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:00:48,221 INFO L225 Difference]: With dead ends: 264 [2024-12-02 15:00:48,221 INFO L226 Difference]: Without dead ends: 148 [2024-12-02 15:00:48,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:00:48,222 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 206 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:00:48,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 606 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 15:00:48,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-12-02 15:00:48,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-12-02 15:00:48,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 100 states have (on average 1.28) internal successors, (128), 102 states have internal predecessors, (128), 38 states have call successors, (38), 8 states have call predecessors, (38), 9 states have return successors, (43), 37 states have call predecessors, (43), 37 states have call successors, (43) [2024-12-02 15:00:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 209 transitions. [2024-12-02 15:00:48,241 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 209 transitions. Word has length 109 [2024-12-02 15:00:48,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:00:48,242 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 209 transitions. [2024-12-02 15:00:48,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 15:00:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 209 transitions. [2024-12-02 15:00:48,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 15:00:48,244 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:00:48,244 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 3, 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] [2024-12-02 15:00:48,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 15:00:48,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:00:48,445 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:00:48,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:00:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash 101047723, now seen corresponding path program 2 times [2024-12-02 15:00:48,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:00:48,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228816034] [2024-12-02 15:00:48,445 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:00:48,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:10,511 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:02:10,511 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:02:13,191 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 15:02:13,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:13,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228816034] [2024-12-02 15:02:13,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228816034] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:02:13,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312404028] [2024-12-02 15:02:13,191 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:02:13,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:13,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:02:13,194 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:02:13,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46a3aec7-a89e-4fa0-8920-30448ae4d979/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process