./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/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_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/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_90dbd6fd-de50-4656-8373-bd427e2696be/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 1df728cd24e7928098236359b418886ddc7ee9c354239a532e7faabbedf2084b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:52,779 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:52,838 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 19:50:52,843 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:52,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:52,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:52,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:52,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:52,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:52,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:52,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:52,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:52,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:52,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:52,869 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:52,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:52,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:50:52,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:52,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:52,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:50:52,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:52,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:50:52,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:50:52,870 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:52,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:52,871 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:52,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:52,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:52,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:52,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:52,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:52,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:52,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:52,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:52,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:52,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:52,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:52,872 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:50:52,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:50:52,872 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:52,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:52,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:52,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:52,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:52,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:52,873 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_90dbd6fd-de50-4656-8373-bd427e2696be/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 -> 1df728cd24e7928098236359b418886ddc7ee9c354239a532e7faabbedf2084b [2024-11-27 19:50:53,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:53,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:53,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:53,186 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:53,186 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:53,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i [2024-11-27 19:50:56,104 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/data/6d387623a/86c07c9a0ac143fbaa6ccda3331810dc/FLAGef579ec01 [2024-11-27 19:50:56,809 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:56,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i [2024-11-27 19:50:56,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/data/6d387623a/86c07c9a0ac143fbaa6ccda3331810dc/FLAGef579ec01 [2024-11-27 19:50:57,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/data/6d387623a/86c07c9a0ac143fbaa6ccda3331810dc [2024-11-27 19:50:57,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:57,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:57,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:57,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:57,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:57,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:57,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9c3ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57, skipping insertion in model container [2024-11-27 19:50:57,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:57,284 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:57,535 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_90dbd6fd-de50-4656-8373-bd427e2696be/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i[4494,4507] [2024-11-27 19:50:57,543 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_90dbd6fd-de50-4656-8373-bd427e2696be/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i[4554,4567] [2024-11-27 19:50:58,676 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:58,678 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:58,678 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:58,679 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:58,681 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:58,698 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:58,699 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:58,702 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:58,702 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,498 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,499 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:59,653 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:59,670 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_90dbd6fd-de50-4656-8373-bd427e2696be/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i[4494,4507] [2024-11-27 19:50:59,671 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_90dbd6fd-de50-4656-8373-bd427e2696be/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness_negated.i[4554,4567] [2024-11-27 19:50:59,742 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,743 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,743 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,744 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,744 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,757 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,758 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,760 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,764 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-27 19:50:59,989 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:50:59,989 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 19:51:00,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-27 19:51:00,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:00,310 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:51:00,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00 WrapperNode [2024-11-27 19:51:00,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:00,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:00,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:51:00,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:51:00,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,501 INFO L138 Inliner]: procedures = 679, calls = 2625, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 990 [2024-11-27 19:51:00,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:00,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:51:00,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:51:00,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:51:00,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,646 INFO L175 MemorySlicer]: Split 559 memory accesses to 8 slices as follows [2, 257, 4, 8, 6, 34, 243, 5]. 46 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 2, 2, 0, 2, 6, 5]. The 501 writes are split as follows [0, 257, 0, 0, 2, 9, 233, 0]. [2024-11-27 19:51:00,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,691 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:51:00,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:51:00,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:51:00,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:51:00,758 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (1/1) ... [2024-11-27 19:51:00,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:00,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:00,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:51:00,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:51:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-27 19:51:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-27 19:51:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-27 19:51:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-27 19:51:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 19:51:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-27 19:51:00,837 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-27 19:51:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-27 19:51:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-27 19:51:00,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-27 19:51:00,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-27 19:51:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-27 19:51:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-27 19:51:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-27 19:51:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-27 19:51:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-27 19:51:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-27 19:51:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-27 19:51:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-27 19:51:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-27 19:51:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-27 19:51:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-27 19:51:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-27 19:51:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-27 19:51:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-27 19:51:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-27 19:51:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-27 19:51:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-27 19:51:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-27 19:51:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-27 19:51:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-27 19:51:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-27 19:51:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-27 19:51:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 19:51:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:51:00,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:51:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-27 19:51:00,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-27 19:51:00,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-27 19:51:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-27 19:51:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-27 19:51:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-27 19:51:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-27 19:51:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-27 19:51:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-27 19:51:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-27 19:51:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:51:00,846 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:51:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 19:51:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 19:51:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 19:51:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 19:51:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 19:51:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 19:51:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-27 19:51:00,847 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-27 19:51:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 19:51:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-27 19:51:01,342 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:51:01,345 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:51:11,389 INFO L? ?]: Removed 234 outVars from TransFormulas that were not future-live. [2024-11-27 19:51:11,389 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:51:11,407 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:51:11,408 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 19:51:11,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:11 BoogieIcfgContainer [2024-11-27 19:51:11,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:51:11,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:51:11,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:51:11,416 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:51:11,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:57" (1/3) ... [2024-11-27 19:51:11,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba30bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:11, skipping insertion in model container [2024-11-27 19:51:11,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:00" (2/3) ... [2024-11-27 19:51:11,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba30bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:11, skipping insertion in model container [2024-11-27 19:51:11,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:11" (3/3) ... [2024-11-27 19:51:11,421 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness_negated.i [2024-11-27 19:51:11,438 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:51:11,440 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_harness_negated.i that has 17 procedures, 184 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-11-27 19:51:11,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:51:11,522 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;@726e53d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:51:11,522 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:51:11,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 105 states have internal predecessors, (137), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-27 19:51:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 19:51:11,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:11,540 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:11,540 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:11,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:11,547 INFO L85 PathProgramCache]: Analyzing trace with hash -406892630, now seen corresponding path program 1 times [2024-11-27 19:51:11,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:11,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941493363] [2024-11-27 19:51:11,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:11,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-27 19:52:50,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:50,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941493363] [2024-11-27 19:52:50,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941493363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:50,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693943460] [2024-11-27 19:52:50,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:50,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:50,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:50,332 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:50,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:54:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:39,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 7693 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:54:39,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:39,905 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-27 19:54:39,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:39,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693943460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:39,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:54:39,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-27 19:54:39,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893680968] [2024-11-27 19:54:39,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:39,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:39,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:39,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:39,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:54:39,947 INFO L87 Difference]: Start difference. First operand has 149 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 105 states have internal predecessors, (137), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 19:54:41,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:41,289 INFO L93 Difference]: Finished difference Result 298 states and 439 transitions. [2024-11-27 19:54:41,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:54:41,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2024-11-27 19:54:41,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:41,302 INFO L225 Difference]: With dead ends: 298 [2024-11-27 19:54:41,302 INFO L226 Difference]: Without dead ends: 142 [2024-11-27 19:54:41,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:54:41,311 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 214 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:41,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 466 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:54:41,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-27 19:54:41,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-27 19:54:41,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 101 states have internal predecessors, (127), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2024-11-27 19:54:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 198 transitions. [2024-11-27 19:54:41,378 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 198 transitions. Word has length 84 [2024-11-27 19:54:41,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:41,379 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 198 transitions. [2024-11-27 19:54:41,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 19:54:41,380 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 198 transitions. [2024-11-27 19:54:41,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 19:54:41,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:41,387 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:41,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:54:41,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 19:54:41,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:41,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:41,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2026965135, now seen corresponding path program 1 times [2024-11-27 19:54:41,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:41,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370704756] [2024-11-27 19:54:41,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:41,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:34,248 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-27 19:56:34,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:34,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370704756] [2024-11-27 19:56:34,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370704756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:56:34,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757837253] [2024-11-27 19:56:34,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:34,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:56:34,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:56:34,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:56:34,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:58:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:24,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 7698 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:58:24,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:58:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 19:58:25,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:58:25,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757837253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:58:25,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:58:25,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-27 19:58:25,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617439197] [2024-11-27 19:58:25,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:25,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:58:25,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:58:25,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:58:25,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:58:25,994 INFO L87 Difference]: Start difference. First operand 142 states and 198 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 19:58:28,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:28,216 INFO L93 Difference]: Finished difference Result 253 states and 355 transitions. [2024-11-27 19:58:28,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 19:58:28,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 86 [2024-11-27 19:58:28,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:28,219 INFO L225 Difference]: With dead ends: 253 [2024-11-27 19:58:28,220 INFO L226 Difference]: Without dead ends: 142 [2024-11-27 19:58:28,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:58:28,226 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 287 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:28,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 740 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 19:58:28,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-27 19:58:28,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-27 19:58:28,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 101 states have internal predecessors, (127), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2024-11-27 19:58:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2024-11-27 19:58:28,255 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 86 [2024-11-27 19:58:28,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:28,255 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2024-11-27 19:58:28,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 19:58:28,256 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2024-11-27 19:58:28,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 19:58:28,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:28,259 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:28,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:58:28,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:28,459 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:58:28,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:28,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1111206580, now seen corresponding path program 2 times [2024-11-27 19:58:28,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:58:28,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92826460] [2024-11-27 19:58:28,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:58:28,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:00:15,741 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:00:15,741 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:00:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-27 20:00:22,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:00:22,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92826460] [2024-11-27 20:00:22,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92826460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:00:22,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:00:22,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:00:22,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919766519] [2024-11-27 20:00:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:00:22,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:00:22,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:00:22,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:00:22,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:00:22,563 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 20:00:23,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:00:23,003 INFO L93 Difference]: Finished difference Result 150 states and 203 transitions. [2024-11-27 20:00:23,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:00:23,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 88 [2024-11-27 20:00:23,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:00:23,007 INFO L225 Difference]: With dead ends: 150 [2024-11-27 20:00:23,007 INFO L226 Difference]: Without dead ends: 148 [2024-11-27 20:00:23,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:00:23,008 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 3 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:00:23,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1099 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:00:23,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-27 20:00:23,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2024-11-27 20:00:23,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 104 states have internal predecessors, (130), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 32 states have call predecessors, (35), 32 states have call successors, (35) [2024-11-27 20:00:23,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 200 transitions. [2024-11-27 20:00:23,028 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 200 transitions. Word has length 88 [2024-11-27 20:00:23,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:23,029 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 200 transitions. [2024-11-27 20:00:23,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 20:00:23,029 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 200 transitions. [2024-11-27 20:00:23,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-27 20:00:23,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:23,032 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:23,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:00:23,032 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:23,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:23,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1976617241, now seen corresponding path program 3 times [2024-11-27 20:00:23,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:00:23,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147971615] [2024-11-27 20:00:23,033 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:00:23,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:02:13,999 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:02:13,999 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:02:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-27 20:02:19,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:02:19,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147971615] [2024-11-27 20:02:19,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147971615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:02:19,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170020164] [2024-11-27 20:02:19,167 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:02:19,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:02:19,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:02:19,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:02:19,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90dbd6fd-de50-4656-8373-bd427e2696be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process