./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_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_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/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_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/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_010c73fc-a333-4ab6-921e-6d328633f939/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 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:18:30,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:18:30,856 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 20:18:30,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:18:30,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:18:30,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:18:30,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:18:30,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:18:30,886 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:18:30,887 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:18:30,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:18:30,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:18:30,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:18:30,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:18:30,888 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:18:30,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:18:30,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:18:30,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:18:30,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:18:30,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:18:30,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:18:30,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:18:30,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:18:30,889 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:18:30,889 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:18:30,889 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:18:30,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:18:30,889 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:18:30,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:18:30,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:30,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:18:30,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:18:30,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:18:30,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:18:30,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:30,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:18:30,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:18:30,890 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:18:30,890 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:18:30,890 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:18:30,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:18:30,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:18:30,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:18:30,891 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:18:30,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:18:30,891 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_010c73fc-a333-4ab6-921e-6d328633f939/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 -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2024-11-27 20:18:31,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:18:31,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:18:31,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:18:31,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:18:31,159 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:18:31,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2024-11-27 20:18:34,183 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/data/f64761435/3eba2c7ec39f4d42994c174b175b1e78/FLAG7ed5d37fa [2024-11-27 20:18:34,969 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:18:34,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2024-11-27 20:18:35,040 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/data/f64761435/3eba2c7ec39f4d42994c174b175b1e78/FLAG7ed5d37fa [2024-11-27 20:18:35,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/data/f64761435/3eba2c7ec39f4d42994c174b175b1e78 [2024-11-27 20:18:35,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:18:35,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:18:35,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:18:35,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:18:35,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:18:35,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:18:35" (1/1) ... [2024-11-27 20:18:35,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32045fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:35, skipping insertion in model container [2024-11-27 20:18:35,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:18:35" (1/1) ... [2024-11-27 20:18:35,225 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:18:35,532 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_010c73fc-a333-4ab6-921e-6d328633f939/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2024-11-27 20:18:35,540 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_010c73fc-a333-4ab6-921e-6d328633f939/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2024-11-27 20:18:36,622 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:36,623 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:36,624 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:36,625 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:36,626 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:36,645 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:36,646 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:36,648 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:36,649 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,668 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,669 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:18:37,875 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:18:37,896 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_010c73fc-a333-4ab6-921e-6d328633f939/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2024-11-27 20:18:37,900 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_010c73fc-a333-4ab6-921e-6d328633f939/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2024-11-27 20:18:37,971 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,972 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,973 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,973 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,974 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,991 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,991 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,992 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:37,993 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:38,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-27 20:18:38,219 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:38,220 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:18:38,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-11-27 20:18:38,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:18:38,561 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:18:38,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38 WrapperNode [2024-11-27 20:18:38,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:18:38,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:18:38,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:18:38,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:18:38,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,810 INFO L138 Inliner]: procedures = 679, calls = 2625, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 990 [2024-11-27 20:18:38,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:18:38,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:18:38,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:18:38,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:18:38,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,832 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,943 INFO L175 MemorySlicer]: Split 559 memory accesses to 8 slices as follows [2, 257, 34, 6, 8, 243, 5, 4]. 46 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 2, 0, 2, 6, 5, 2]. The 501 writes are split as follows [0, 257, 9, 2, 0, 233, 0, 0]. [2024-11-27 20:18:38,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:38,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,041 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:18:39,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:18:39,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:18:39,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:18:39,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (1/1) ... [2024-11-27 20:18:39,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:39,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:18:39,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:18:39,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:18:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-27 20:18:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-27 20:18:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-27 20:18:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-27 20:18:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:18:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-27 20:18:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-27 20:18:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-27 20:18:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-27 20:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-27 20:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-27 20:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-27 20:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-27 20:18:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-27 20:18:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-11-27 20:18:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-27 20:18:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-27 20:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-27 20:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-27 20:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-27 20:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-27 20:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-27 20:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-27 20:18:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-27 20:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-27 20:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-27 20:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-27 20:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-27 20:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-27 20:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-27 20:18:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-27 20:18:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:18:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:18:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 20:18:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 20:18:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 20:18:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 20:18:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-27 20:18:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-27 20:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-27 20:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-27 20:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-27 20:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-27 20:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-27 20:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-27 20:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-27 20:18:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-27 20:18:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-27 20:18:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-27 20:18:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-27 20:18:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-27 20:18:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-27 20:18:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-27 20:18:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-27 20:18:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-27 20:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:18:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 20:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 20:18:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 20:18:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 20:18:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-27 20:18:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-27 20:18:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:18:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:18:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-27 20:18:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-27 20:18:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-27 20:18:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-27 20:18:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-27 20:18:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-27 20:18:39,207 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:18:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 20:18:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 20:18:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-27 20:18:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-27 20:18:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-27 20:18:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-27 20:18:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:18:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:18:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 20:18:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 20:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 20:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 20:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-27 20:18:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-27 20:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-27 20:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-27 20:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-27 20:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-27 20:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-27 20:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-27 20:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-27 20:18:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-11-27 20:18:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:18:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:18:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:18:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 20:18:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 20:18:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 20:18:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 20:18:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-27 20:18:39,751 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:18:39,753 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:18:50,457 INFO L? ?]: Removed 234 outVars from TransFormulas that were not future-live. [2024-11-27 20:18:50,458 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:18:50,473 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:18:50,476 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:18:50,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:50 BoogieIcfgContainer [2024-11-27 20:18:50,476 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:18:50,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:18:50,480 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:18:50,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:18:50,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:18:35" (1/3) ... [2024-11-27 20:18:50,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707799ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:18:50, skipping insertion in model container [2024-11-27 20:18:50,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:38" (2/3) ... [2024-11-27 20:18:50,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707799ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:18:50, skipping insertion in model container [2024-11-27 20:18:50,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:50" (3/3) ... [2024-11-27 20:18:50,490 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2024-11-27 20:18:50,512 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:18:50,516 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_harness.i that has 17 procedures, 184 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-11-27 20:18:50,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:18:50,612 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;@562df51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:18:50,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:18:50,617 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 20:18:50,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 20:18:50,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:50,633 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 20:18:50,633 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:50,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:50,642 INFO L85 PathProgramCache]: Analyzing trace with hash -406892630, now seen corresponding path program 1 times [2024-11-27 20:18:50,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:50,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680207368] [2024-11-27 20:18:50,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:50,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:34,615 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 20:20:34,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:34,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680207368] [2024-11-27 20:20:34,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680207368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:20:34,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69448213] [2024-11-27 20:20:34,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:34,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:34,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:20:34,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:20:34,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:22:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:08,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 7693 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:22:08,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:08,886 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 20:22:08,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:22:08,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69448213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:08,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:22:08,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-27 20:22:08,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604588228] [2024-11-27 20:22:08,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:08,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:22:08,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:08,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:22:08,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:22:08,919 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 20:22:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:09,982 INFO L93 Difference]: Finished difference Result 298 states and 439 transitions. [2024-11-27 20:22:09,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:22:09,985 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 20:22:09,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:09,994 INFO L225 Difference]: With dead ends: 298 [2024-11-27 20:22:09,995 INFO L226 Difference]: Without dead ends: 142 [2024-11-27 20:22:10,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:22:10,003 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 214 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:10,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 466 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:22:10,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-27 20:22:10,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-27 20:22:10,051 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 20:22:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 198 transitions. [2024-11-27 20:22:10,061 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 198 transitions. Word has length 84 [2024-11-27 20:22:10,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:10,062 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 198 transitions. [2024-11-27 20:22:10,062 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 20:22:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 198 transitions. [2024-11-27 20:22:10,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 20:22:10,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:10,068 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 20:22:10,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:22:10,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:22:10,269 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:10,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:10,269 INFO L85 PathProgramCache]: Analyzing trace with hash 2026965135, now seen corresponding path program 1 times [2024-11-27 20:22:10,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:10,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248367102] [2024-11-27 20:22:10,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:10,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:40,496 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 20:23:40,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:40,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248367102] [2024-11-27 20:23:40,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248367102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:23:40,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501683068] [2024-11-27 20:23:40,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:40,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:40,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:40,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:40,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:25:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:12,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 7698 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:25:12,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:13,814 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 20:25:13,814 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:13,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501683068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:13,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:25:13,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-27 20:25:13,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372727240] [2024-11-27 20:25:13,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:13,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:25:13,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:13,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:25:13,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:25:13,817 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 20:25:15,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:15,979 INFO L93 Difference]: Finished difference Result 253 states and 355 transitions. [2024-11-27 20:25:15,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:25:15,979 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 20:25:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:15,982 INFO L225 Difference]: With dead ends: 253 [2024-11-27 20:25:15,982 INFO L226 Difference]: Without dead ends: 142 [2024-11-27 20:25:15,983 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 20:25:15,984 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, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:15,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 740 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:25:15,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-27 20:25:16,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-27 20:25:16,001 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 20:25:16,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2024-11-27 20:25:16,004 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 86 [2024-11-27 20:25:16,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:16,004 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2024-11-27 20:25:16,005 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 20:25:16,005 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2024-11-27 20:25:16,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 20:25:16,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:16,007 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 20:25:16,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:25:16,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-27 20:25:16,208 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:25:16,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:16,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1111206580, now seen corresponding path program 2 times [2024-11-27 20:25:16,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:16,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280865594] [2024-11-27 20:25:16,209 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:16,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:42,152 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:26:42,153 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:26:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-27 20:26:45,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:45,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280865594] [2024-11-27 20:26:45,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280865594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:26:45,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:26:45,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:26:45,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070081948] [2024-11-27 20:26:45,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:26:45,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:26:45,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:45,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:26:45,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:26:45,962 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 20:26:46,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:46,971 INFO L93 Difference]: Finished difference Result 248 states and 341 transitions. [2024-11-27 20:26:46,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:26:46,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 88 [2024-11-27 20:26:46,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:46,974 INFO L225 Difference]: With dead ends: 248 [2024-11-27 20:26:46,975 INFO L226 Difference]: Without dead ends: 142 [2024-11-27 20:26:46,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:26:46,977 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 169 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:26:46,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 982 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:26:46,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-27 20:26:46,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-27 20:26:46,993 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, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-27 20:26:46,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 193 transitions. [2024-11-27 20:26:46,996 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 193 transitions. Word has length 88 [2024-11-27 20:26:46,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:46,997 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 193 transitions. [2024-11-27 20:26:46,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 20:26:46,997 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 193 transitions. [2024-11-27 20:26:46,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 20:26:46,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:46,999 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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 20:26:47,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:26:47,000 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:26:47,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:47,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1597336386, now seen corresponding path program 1 times [2024-11-27 20:26:47,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:47,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84804824] [2024-11-27 20:26:47,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:47,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:17,582 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-27 20:28:17,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:17,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84804824] [2024-11-27 20:28:17,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84804824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:28:17,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:28:17,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:28:17,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946427156] [2024-11-27 20:28:17,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:17,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:28:17,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:17,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:28:17,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:28:17,593 INFO L87 Difference]: Start difference. First operand 142 states and 193 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 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 20:28:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:18,151 INFO L93 Difference]: Finished difference Result 154 states and 212 transitions. [2024-11-27 20:28:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:28:18,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 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 92 [2024-11-27 20:28:18,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:18,154 INFO L225 Difference]: With dead ends: 154 [2024-11-27 20:28:18,154 INFO L226 Difference]: Without dead ends: 152 [2024-11-27 20:28:18,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:28:18,155 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 3 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:18,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1292 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:28:18,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-27 20:28:18,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2024-11-27 20:28:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 104 states have (on average 1.2788461538461537) internal successors, (133), 108 states have internal predecessors, (133), 35 states have call successors, (35), 10 states have call predecessors, (35), 11 states have return successors, (41), 32 states have call predecessors, (41), 32 states have call successors, (41) [2024-11-27 20:28:18,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 209 transitions. [2024-11-27 20:28:18,174 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 209 transitions. Word has length 92 [2024-11-27 20:28:18,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:18,175 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 209 transitions. [2024-11-27 20:28:18,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 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 20:28:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 209 transitions. [2024-11-27 20:28:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-27 20:28:18,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:18,177 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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, 1, 1] [2024-11-27 20:28:18,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:28:18,178 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:18,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash -372573946, now seen corresponding path program 1 times [2024-11-27 20:28:18,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:18,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173501658] [2024-11-27 20:28:18,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:18,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:29:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-27 20:30:01,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:01,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173501658] [2024-11-27 20:30:01,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173501658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:01,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226492274] [2024-11-27 20:30:01,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:01,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:01,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:01,981 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:01,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_010c73fc-a333-4ab6-921e-6d328633f939/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process