./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_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_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/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_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/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_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:27:58,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:27:58,926 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 20:27:58,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:27:58,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:27:58,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:27:58,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:27:58,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:27:58,957 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:27:58,957 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:27:58,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:27:58,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:27:58,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:27:58,958 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:27:58,958 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:27:58,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:27:58,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:27:58,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:27:58,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:27:58,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:27:58,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:27:58,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:27:58,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:27:58,959 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:27:58,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:27:58,959 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:27:58,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:27:58,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:27:58,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:27:58,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:27:58,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:27:58,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:27:58,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:27:58,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:27:58,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:27:58,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:27:58,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:27:58,961 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:27:58,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:27:58,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:27:58,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:27:58,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:27:58,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:27:58,962 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:27:58,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:27:58,962 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_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/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 -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2024-11-27 20:27:59,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:27:59,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:27:59,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:27:59,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:27:59,265 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:27:59,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-11-27 20:28:02,314 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/data/7b63c965c/3497ec1f2a174d9eabb064d67e5c9487/FLAG95c73c6f4 [2024-11-27 20:28:02,995 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:28:02,999 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-11-27 20:28:03,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/data/7b63c965c/3497ec1f2a174d9eabb064d67e5c9487/FLAG95c73c6f4 [2024-11-27 20:28:03,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/data/7b63c965c/3497ec1f2a174d9eabb064d67e5c9487 [2024-11-27 20:28:03,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:28:03,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:28:03,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:28:03,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:28:03,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:28:03,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:28:03" (1/1) ... [2024-11-27 20:28:03,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6ed4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:03, skipping insertion in model container [2024-11-27 20:28:03,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:28:03" (1/1) ... [2024-11-27 20:28:03,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:28:03,812 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_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-27 20:28:03,823 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_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-27 20:28:04,889 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,892 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,892 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,893 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,894 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,913 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,913 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,916 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,916 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,919 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,920 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,921 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:04,921 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,674 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,675 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,682 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,691 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:28:05,809 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:28:05,825 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_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-27 20:28:05,825 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_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-27 20:28:05,923 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,923 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,923 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,924 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,925 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,942 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,947 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,949 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,949 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,950 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,954 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,955 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:05,955 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:06,088 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:06,089 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:06,090 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:06,096 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 20:28:06,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-11-27 20:28:06,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:28:06,354 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:28:06,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06 WrapperNode [2024-11-27 20:28:06,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:28:06,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:28:06,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:28:06,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:28:06,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,530 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 653 [2024-11-27 20:28:06,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:28:06,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:28:06,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:28:06,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:28:06,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,561 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,655 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 6, 39, 5, 3, 9]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 5, 5, 2, 1, 5]. The 238 writes are split as follows [232, 0, 1, 3, 1, 1, 0]. [2024-11-27 20:28:06,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,712 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,725 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:28:06,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:28:06,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:28:06,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:28:06,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (1/1) ... [2024-11-27 20:28:06,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:28:06,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:06,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:28:06,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:28:06,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:28:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-27 20:28:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-27 20:28:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-27 20:28:06,841 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-27 20:28:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-27 20:28:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-27 20:28:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-27 20:28:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-27 20:28:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-27 20:28:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-27 20:28:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-27 20:28:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-27 20:28:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-27 20:28:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:28:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:28:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 20:28:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 20:28:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 20:28:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 20:28:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-27 20:28:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-27 20:28:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-27 20:28:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:28:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:28:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:28:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:28:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:28:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:28:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 20:28:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 20:28:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 20:28:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 20:28:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-27 20:28:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-27 20:28:06,848 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-27 20:28:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:28:06,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-27 20:28:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-27 20:28:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-27 20:28:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:28:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-27 20:28:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:28:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-27 20:28:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-27 20:28:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-27 20:28:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-27 20:28:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-27 20:28:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-27 20:28:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:28:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:28:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-27 20:28:06,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 20:28:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 20:28:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 20:28:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 20:28:07,284 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:28:07,286 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:28:13,848 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-27 20:28:13,848 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:28:13,861 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:28:13,861 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:28:13,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:28:13 BoogieIcfgContainer [2024-11-27 20:28:13,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:28:13,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:28:13,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:28:13,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:28:13,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:28:03" (1/3) ... [2024-11-27 20:28:13,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e421075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:28:13, skipping insertion in model container [2024-11-27 20:28:13,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:06" (2/3) ... [2024-11-27 20:28:13,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e421075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:28:13, skipping insertion in model container [2024-11-27 20:28:13,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:28:13" (3/3) ... [2024-11-27 20:28:13,871 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2024-11-27 20:28:13,886 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:28:13,888 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_harness.i that has 16 procedures, 179 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:28:13,946 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:28:13,957 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;@6deeddf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:28:13,958 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:28:13,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 102 states have internal predecessors, (118), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-27 20:28:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-27 20:28:13,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:13,974 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:13,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:13,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1526607995, now seen corresponding path program 1 times [2024-11-27 20:28:13,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:13,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597488417] [2024-11-27 20:28:13,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:13,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-27 20:28:22,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597488417] [2024-11-27 20:28:22,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597488417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:22,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964331690] [2024-11-27 20:28:22,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:22,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:22,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:22,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:22,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:28:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:30,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:28:30,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:30,816 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-27 20:28:30,816 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:28:30,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964331690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:28:30,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:28:30,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:28:30,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595512563] [2024-11-27 20:28:30,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:30,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:28:30,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:30,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:28:30,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:28:30,865 INFO L87 Difference]: Start difference. First operand has 179 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 102 states have internal predecessors, (118), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:28:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:30,966 INFO L93 Difference]: Finished difference Result 351 states and 515 transitions. [2024-11-27 20:28:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:28:30,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2024-11-27 20:28:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:30,982 INFO L225 Difference]: With dead ends: 351 [2024-11-27 20:28:30,982 INFO L226 Difference]: Without dead ends: 174 [2024-11-27 20:28:30,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 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 20:28:30,996 INFO L435 NwaCegarLoop]: 237 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, 237 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 20:28:30,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:28:31,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-27 20:28:31,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-27 20:28:31,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 97 states have (on average 1.1443298969072164) internal successors, (111), 98 states have internal predecessors, (111), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 20:28:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2024-11-27 20:28:31,098 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 69 [2024-11-27 20:28:31,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:31,100 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2024-11-27 20:28:31,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:28:31,102 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2024-11-27 20:28:31,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-27 20:28:31,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:31,106 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:31,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:28:31,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:31,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:31,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:31,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1908141771, now seen corresponding path program 1 times [2024-11-27 20:28:31,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:31,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076420437] [2024-11-27 20:28:31,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:31,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:40,005 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-27 20:28:40,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:40,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076420437] [2024-11-27 20:28:40,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076420437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:40,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310876704] [2024-11-27 20:28:40,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:40,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:40,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:40,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:40,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:28:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:47,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:28:47,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-27 20:28:47,814 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:28:47,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310876704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:28:47,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:28:47,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-27 20:28:47,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981185503] [2024-11-27 20:28:47,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:47,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:28:47,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:47,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:28:47,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:28:47,822 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:28:50,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:50,288 INFO L93 Difference]: Finished difference Result 313 states and 430 transitions. [2024-11-27 20:28:50,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:28:50,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2024-11-27 20:28:50,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:50,297 INFO L225 Difference]: With dead ends: 313 [2024-11-27 20:28:50,298 INFO L226 Difference]: Without dead ends: 176 [2024-11-27 20:28:50,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:28:50,305 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 236 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:50,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 663 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 20:28:50,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-27 20:28:50,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-27 20:28:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 100 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-27 20:28:50,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 241 transitions. [2024-11-27 20:28:50,351 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 241 transitions. Word has length 69 [2024-11-27 20:28:50,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:50,351 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 241 transitions. [2024-11-27 20:28:50,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:28:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 241 transitions. [2024-11-27 20:28:50,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 20:28:50,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:50,358 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1] [2024-11-27 20:28:50,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:28:50,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:50,559 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:50,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:50,560 INFO L85 PathProgramCache]: Analyzing trace with hash -112018397, now seen corresponding path program 1 times [2024-11-27 20:28:50,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:50,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326338881] [2024-11-27 20:28:50,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:50,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:00,003 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-27 20:29:00,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:29:00,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326338881] [2024-11-27 20:29:00,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326338881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:29:00,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524164843] [2024-11-27 20:29:00,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:00,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:29:00,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:29:00,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:29:00,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:29:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:07,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 4140 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:29:07,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:08,358 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-27 20:29:08,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:29:08,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524164843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:29:08,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:29:08,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-27 20:29:08,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987822631] [2024-11-27 20:29:08,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:08,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:29:08,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:29:08,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:29:08,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:29:08,361 INFO L87 Difference]: Start difference. First operand 176 states and 241 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-27 20:29:11,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:11,417 INFO L93 Difference]: Finished difference Result 324 states and 453 transitions. [2024-11-27 20:29:11,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:29:11,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2024-11-27 20:29:11,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:11,422 INFO L225 Difference]: With dead ends: 324 [2024-11-27 20:29:11,423 INFO L226 Difference]: Without dead ends: 188 [2024-11-27 20:29:11,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:29:11,425 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 256 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:11,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 988 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:29:11,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-27 20:29:11,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-11-27 20:29:11,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 104 states have (on average 1.1442307692307692) internal successors, (119), 106 states have internal predecessors, (119), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2024-11-27 20:29:11,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 258 transitions. [2024-11-27 20:29:11,458 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 258 transitions. Word has length 84 [2024-11-27 20:29:11,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:11,459 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 258 transitions. [2024-11-27 20:29:11,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-27 20:29:11,459 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 258 transitions. [2024-11-27 20:29:11,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-27 20:29:11,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:11,462 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:11,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:29:11,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:29:11,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:11,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:11,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1693251591, now seen corresponding path program 1 times [2024-11-27 20:29:11,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:29:11,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299928901] [2024-11-27 20:29:11,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:11,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:29:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:29:25,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [438662380] [2024-11-27 20:29:25,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:25,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:29:25,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:29:25,127 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:29:25,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb2a01-5d72-4d8f-b2a4-044c851b5d8c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process