./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_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_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/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_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/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_5842e332-0605-49aa-80ff-9bc6649ab13b/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 b9b18ebf4b8789ea2f47784074870c5f6db1e5ba9b6bdc5a046638032691b06b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:27:43,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:27:43,504 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 23:27:43,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:27:43,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:27:43,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:27:43,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:27:43,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:27:43,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:27:43,535 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:27:43,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:27:43,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:27:43,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:27:43,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:27:43,536 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:27:43,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:27:43,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:27:43,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:27:43,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:27:43,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:27:43,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:27:43,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:27:43,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:27:43,538 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:27:43,538 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:27:43,538 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:27:43,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:27:43,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:27:43,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:27:43,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:27:43,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:27:43,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:27:43,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:27:43,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:27:43,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:27:43,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:27:43,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:27:43,540 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:27:43,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:27:43,540 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:27:43,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:27:43,541 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:27:43,541 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:27:43,541 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:27:43,541 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:27:43,541 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_5842e332-0605-49aa-80ff-9bc6649ab13b/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 -> b9b18ebf4b8789ea2f47784074870c5f6db1e5ba9b6bdc5a046638032691b06b [2024-11-27 23:27:43,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:27:43,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:27:43,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:27:43,882 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:27:43,883 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:27:43,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i [2024-11-27 23:27:46,773 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/data/b6134dad8/1b34fcc44fe24499b2fbbcc78d5a4523/FLAG66fa6d30a [2024-11-27 23:27:47,462 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:27:47,466 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i [2024-11-27 23:27:47,522 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/data/b6134dad8/1b34fcc44fe24499b2fbbcc78d5a4523/FLAG66fa6d30a [2024-11-27 23:27:47,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/data/b6134dad8/1b34fcc44fe24499b2fbbcc78d5a4523 [2024-11-27 23:27:47,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:27:47,548 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:27:47,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:27:47,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:27:47,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:27:47,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:27:47" (1/1) ... [2024-11-27 23:27:47,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c293509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:47, skipping insertion in model container [2024-11-27 23:27:47,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:27:47" (1/1) ... [2024-11-27 23:27:47,691 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:27:48,013 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_5842e332-0605-49aa-80ff-9bc6649ab13b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4497,4510] [2024-11-27 23:27:48,022 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_5842e332-0605-49aa-80ff-9bc6649ab13b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4557,4570] [2024-11-27 23:27:49,063 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,064 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,065 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,066 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,067 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,082 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,083 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,085 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,086 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,972 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:49,973 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:27:50,095 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:27:50,110 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_5842e332-0605-49aa-80ff-9bc6649ab13b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4497,4510] [2024-11-27 23:27:50,110 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_5842e332-0605-49aa-80ff-9bc6649ab13b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4557,4570] [2024-11-27 23:27:50,159 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,159 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,160 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,160 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,161 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,168 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,169 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,170 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,170 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-27 23:27:50,329 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,329 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:27:50,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-27 23:27:50,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:27:50,666 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:27:50,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50 WrapperNode [2024-11-27 23:27:50,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:27:50,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:27:50,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:27:50,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:27:50,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:50,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:50,857 INFO L138 Inliner]: procedures = 679, calls = 2625, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 1000 [2024-11-27 23:27:50,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:27:50,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:27:50,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:27:50,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:27:50,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:50,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:50,880 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:50,995 INFO L175 MemorySlicer]: Split 555 memory accesses to 8 slices as follows [2, 257, 242, 34, 4, 7, 4, 5]. 46 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 6, 2, 0, 2, 2, 5]. The 501 writes are split as follows [0, 257, 233, 9, 2, 0, 0, 0]. [2024-11-27 23:27:50,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:50,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:51,063 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:51,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:51,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:51,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:51,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:51,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:27:51,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:27:51,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:27:51,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:27:51,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (1/1) ... [2024-11-27 23:27:51,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:27:51,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:51,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:51,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:27:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-27 23:27:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-27 23:27:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-27 23:27:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-27 23:27:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:27:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-27 23:27:51,201 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-27 23:27:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-27 23:27:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-27 23:27:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-27 23:27:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-27 23:27:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-27 23:27:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-27 23:27:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-27 23:27:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-11-27 23:27:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-27 23:27:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-27 23:27:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-27 23:27:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-27 23:27:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-27 23:27:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-27 23:27:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-27 23:27:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-27 23:27:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-27 23:27:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-27 23:27:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-27 23:27:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-27 23:27:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-27 23:27:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-27 23:27:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-27 23:27:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-27 23:27:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:27:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:27:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:27:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 23:27:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 23:27:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 23:27:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-27 23:27:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-27 23:27:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-27 23:27:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-27 23:27:51,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-27 23:27:51,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-27 23:27:51,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-27 23:27:51,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-27 23:27:51,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-27 23:27:51,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-27 23:27:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-27 23:27:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-27 23:27:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-27 23:27:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-27 23:27:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-27 23:27:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-27 23:27:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-27 23:27:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-27 23:27:51,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:27:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:27:51,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:27:51,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:27:51,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 23:27:51,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 23:27:51,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 23:27:51,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 23:27:51,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 23:27:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 23:27:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-27 23:27:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-27 23:27:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:27:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:27:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-27 23:27:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-27 23:27:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-27 23:27:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-27 23:27:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-27 23:27:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-27 23:27:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:27:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 23:27:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-27 23:27:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-27 23:27:51,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 23:27:51,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-27 23:27:51,720 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:27:51,722 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:28:02,033 INFO L? ?]: Removed 230 outVars from TransFormulas that were not future-live. [2024-11-27 23:28:02,034 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:28:02,051 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:28:02,053 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:28:02,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:02 BoogieIcfgContainer [2024-11-27 23:28:02,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:28:02,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:28:02,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:28:02,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:28:02,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:27:47" (1/3) ... [2024-11-27 23:28:02,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ee233e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:28:02, skipping insertion in model container [2024-11-27 23:28:02,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:50" (2/3) ... [2024-11-27 23:28:02,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ee233e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:28:02, skipping insertion in model container [2024-11-27 23:28:02,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:02" (3/3) ... [2024-11-27 23:28:02,068 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness_negated.i [2024-11-27 23:28:02,087 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:28:02,089 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_u8_harness_negated.i that has 16 procedures, 186 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-11-27 23:28:02,161 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:28:02,177 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;@1e38d5be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:28:02,177 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:28:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 23:28:02,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 23:28:02,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:02,197 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:02,198 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:02,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:02,204 INFO L85 PathProgramCache]: Analyzing trace with hash 358773453, now seen corresponding path program 1 times [2024-11-27 23:28:02,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:02,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817299461] [2024-11-27 23:28:02,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:02,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:57,990 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-27 23:29:57,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:57,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817299461] [2024-11-27 23:29:57,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817299461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:57,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411387001] [2024-11-27 23:29:57,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:57,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:57,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:57,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:58,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:31:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:47,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 7755 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:31:47,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:47,533 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-27 23:31:47,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:47,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411387001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:47,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:47,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:31:47,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473941968] [2024-11-27 23:31:47,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:47,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:31:47,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:47,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:31:47,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:47,569 INFO L87 Difference]: Start difference. First operand has 151 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:31:47,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:47,638 INFO L93 Difference]: Finished difference Result 299 states and 441 transitions. [2024-11-27 23:31:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:31:47,641 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2024-11-27 23:31:47,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:47,651 INFO L225 Difference]: With dead ends: 299 [2024-11-27 23:31:47,651 INFO L226 Difference]: Without dead ends: 145 [2024-11-27 23:31:47,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:47,660 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:47,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:47,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-27 23:31:47,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-27 23:31:47,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 98 states have (on average 1.2857142857142858) internal successors, (126), 99 states have internal predecessors, (126), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 23:31:47,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 201 transitions. [2024-11-27 23:31:47,721 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 201 transitions. Word has length 107 [2024-11-27 23:31:47,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:47,721 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 201 transitions. [2024-11-27 23:31:47,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-27 23:31:47,722 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 201 transitions. [2024-11-27 23:31:47,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 23:31:47,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:47,727 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:47,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:31:47,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:31:47,928 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:47,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:47,929 INFO L85 PathProgramCache]: Analyzing trace with hash -696448629, now seen corresponding path program 1 times [2024-11-27 23:31:47,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:47,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774919046] [2024-11-27 23:31:47,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:47,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-27 23:33:40,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:40,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774919046] [2024-11-27 23:33:40,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774919046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:40,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708005098] [2024-11-27 23:33:40,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:40,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:40,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:40,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:40,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:35:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:31,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 7755 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:35:31,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:32,283 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-27 23:35:32,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:35:32,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708005098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:32,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:35:32,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-27 23:35:32,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782954665] [2024-11-27 23:35:32,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:32,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:35:32,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:32,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:35:32,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:35:32,287 INFO L87 Difference]: Start difference. First operand 145 states and 201 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-27 23:35:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:33,514 INFO L93 Difference]: Finished difference Result 274 states and 391 transitions. [2024-11-27 23:35:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:35:33,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 107 [2024-11-27 23:35:33,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:33,518 INFO L225 Difference]: With dead ends: 274 [2024-11-27 23:35:33,518 INFO L226 Difference]: Without dead ends: 148 [2024-11-27 23:35:33,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 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 23:35:33,521 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 207 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:33,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 448 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:35:33,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-27 23:35:33,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-27 23:35:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 100 states have (on average 1.28) internal successors, (128), 102 states have internal predecessors, (128), 38 states have call successors, (38), 8 states have call predecessors, (38), 9 states have return successors, (45), 37 states have call predecessors, (45), 37 states have call successors, (45) [2024-11-27 23:35:33,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 211 transitions. [2024-11-27 23:35:33,569 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 211 transitions. Word has length 107 [2024-11-27 23:35:33,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:33,569 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 211 transitions. [2024-11-27 23:35:33,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-27 23:35:33,570 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 211 transitions. [2024-11-27 23:35:33,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 23:35:33,576 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:33,576 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:33,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:35:33,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:35:33,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:33,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:33,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1579308986, now seen corresponding path program 1 times [2024-11-27 23:35:33,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:33,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975054556] [2024-11-27 23:35:33,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:33,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-27 23:37:30,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:30,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975054556] [2024-11-27 23:37:30,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975054556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:30,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063127950] [2024-11-27 23:37:30,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:30,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:30,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:37:30,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:37:30,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:39:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:32,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 7760 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:39:32,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-27 23:39:33,302 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:39:33,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063127950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:39:33,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:39:33,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-27 23:39:33,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962215344] [2024-11-27 23:39:33,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:39:33,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:39:33,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:33,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:39:33,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:39:33,305 INFO L87 Difference]: Start difference. First operand 148 states and 211 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 23:39:34,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:34,753 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2024-11-27 23:39:34,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:39:34,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 109 [2024-11-27 23:39:34,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:34,756 INFO L225 Difference]: With dead ends: 264 [2024-11-27 23:39:34,756 INFO L226 Difference]: Without dead ends: 148 [2024-11-27 23:39:34,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:39:34,759 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 206 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:34,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 606 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:39:34,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-27 23:39:34,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-27 23:39:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 100 states have (on average 1.28) internal successors, (128), 102 states have internal predecessors, (128), 38 states have call successors, (38), 8 states have call predecessors, (38), 9 states have return successors, (43), 37 states have call predecessors, (43), 37 states have call successors, (43) [2024-11-27 23:39:34,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 209 transitions. [2024-11-27 23:39:34,778 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 209 transitions. Word has length 109 [2024-11-27 23:39:34,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:34,779 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 209 transitions. [2024-11-27 23:39:34,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 23:39:34,780 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 209 transitions. [2024-11-27 23:39:34,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-27 23:39:34,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:34,782 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:39:34,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:39:34,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5842e332-0605-49aa-80ff-9bc6649ab13b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:34,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:34,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:34,983 INFO L85 PathProgramCache]: Analyzing trace with hash 101047723, now seen corresponding path program 2 times [2024-11-27 23:39:34,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:34,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486230334] [2024-11-27 23:39:34,984 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:39:34,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:41:21,817 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:41:21,817 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:41:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-27 23:41:28,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:41:28,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486230334] [2024-11-27 23:41:28,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486230334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:41:28,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:41:28,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:41:28,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838807034] [2024-11-27 23:41:28,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:41:28,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:41:28,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:41:28,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:41:28,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:41:28,385 INFO L87 Difference]: Start difference. First operand 148 states and 209 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-27 23:41:28,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:41:28,819 INFO L93 Difference]: Finished difference Result 156 states and 217 transitions. [2024-11-27 23:41:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:41:28,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-11-27 23:41:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:41:28,823 INFO L225 Difference]: With dead ends: 156 [2024-11-27 23:41:28,824 INFO L226 Difference]: Without dead ends: 154 [2024-11-27 23:41:28,824 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 23:41:28,825 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 3 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1165 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 23:41:28,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1165 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:41:28,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-27 23:41:28,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2024-11-27 23:41:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 105 states have internal predecessors, (131), 39 states have call successors, (39), 9 states have call predecessors, (39), 10 states have return successors, (44), 38 states have call predecessors, (44), 38 states have call successors, (44) [2024-11-27 23:41:28,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 214 transitions. [2024-11-27 23:41:28,846 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 214 transitions. Word has length 111 [2024-11-27 23:41:28,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:41:28,847 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 214 transitions. [2024-11-27 23:41:28,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-27 23:41:28,847 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 214 transitions. [2024-11-27 23:41:28,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-27 23:41:28,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:41:28,850 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:41:28,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:41:28,850 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:41:28,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:41:28,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1784153840, now seen corresponding path program 3 times [2024-11-27 23:41:28,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:41:28,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380473854] [2024-11-27 23:41:28,851 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:41:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms