./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_add_size_saturating_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_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2373b89bc80623f6b757372a5453fd0e33def233d789f1b6f34f054b43a428a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:13:29,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:13:29,090 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 14:13:29,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:13:29,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:13:29,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:13:29,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:13:29,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:13:29,115 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:13:29,115 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:13:29,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:13:29,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:13:29,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:13:29,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:13:29,116 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:13:29,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:13:29,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:13:29,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:13:29,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:13:29,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:13:29,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:13:29,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:13:29,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:13:29,117 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:13:29,117 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:13:29,117 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:13:29,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:13:29,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:13:29,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:13:29,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:13:29,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:13:29,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:13:29,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:13:29,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:13:29,118 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:13:29,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:13:29,119 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_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2373b89bc80623f6b757372a5453fd0e33def233d789f1b6f34f054b43a428a7 [2024-12-02 14:13:29,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:13:29,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:13:29,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:13:29,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:13:29,329 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:13:29,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i [2024-12-02 14:13:31,979 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/data/fe67bb2e4/c53d495912b24059863fee14d0b43ceb/FLAGf2a55f04d [2024-12-02 14:13:32,368 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:13:32,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i [2024-12-02 14:13:32,395 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/data/fe67bb2e4/c53d495912b24059863fee14d0b43ceb/FLAGf2a55f04d [2024-12-02 14:13:32,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/data/fe67bb2e4/c53d495912b24059863fee14d0b43ceb [2024-12-02 14:13:32,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:13:32,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:13:32,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:13:32,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:13:32,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:13:32,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:32" (1/1) ... [2024-12-02 14:13:32,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb93213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:32, skipping insertion in model container [2024-12-02 14:13:32,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:32" (1/1) ... [2024-12-02 14:13:32,622 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:13:32,796 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[4497,4510] [2024-12-02 14:13:32,801 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[4557,4570] [2024-12-02 14:13:33,339 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,340 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,340 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,341 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,342 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,356 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,357 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,359 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,360 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,361 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,362 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,363 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,363 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,878 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156169,156182] [2024-12-02 14:13:33,879 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156388,156401] [2024-12-02 14:13:33,879 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156584,156597] [2024-12-02 14:13:33,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:13:33,909 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:13:33,924 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[4497,4510] [2024-12-02 14:13:33,924 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[4557,4570] [2024-12-02 14:13:33,987 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,988 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,988 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,989 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,989 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,996 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,997 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,998 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,998 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:33,999 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:34,000 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:34,001 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:34,001 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 14:13:34,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [6944-6955] [2024-12-02 14:13:34,073 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156169,156182] [2024-12-02 14:13:34,073 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156388,156401] [2024-12-02 14:13:34,074 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_976c34c8-875a-4f7a-a569-06289387883e/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156584,156597] [2024-12-02 14:13:34,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:13:34,229 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:13:34,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34 WrapperNode [2024-12-02 14:13:34,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:13:34,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:13:34,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:13:34,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:13:34,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,328 INFO L138 Inliner]: procedures = 669, calls = 1209, calls flagged for inlining = 41, calls inlined = 4, statements flattened = 487 [2024-12-02 14:13:34,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:13:34,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:13:34,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:13:34,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:13:34,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,347 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,409 INFO L175 MemorySlicer]: Split 240 memory accesses to 2 slices as follows [2, 238]. 99 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 232 writes are split as follows [0, 232]. [2024-12-02 14:13:34,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,426 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,429 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:13:34,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:13:34,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:13:34,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:13:34,441 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (1/1) ... [2024-12-02 14:13:34,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:13:34,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:13:34,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:13:34,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:13:34,501 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 14:13:34,502 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 14:13:34,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:13:34,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint32_t [2024-12-02 14:13:34,502 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint32_t [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_u64_saturating [2024-12-02 14:13:34,502 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_u64_saturating [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 14:13:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 14:13:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 14:13:34,503 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 14:13:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:13:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 14:13:34,677 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:13:34,679 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:13:40,206 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-02 14:13:40,207 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:13:40,216 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:13:40,216 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 14:13:40,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:40 BoogieIcfgContainer [2024-12-02 14:13:40,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:13:40,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:13:40,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:13:40,223 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:13:40,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:13:32" (1/3) ... [2024-12-02 14:13:40,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f49d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:40, skipping insertion in model container [2024-12-02 14:13:40,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:34" (2/3) ... [2024-12-02 14:13:40,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f49d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:40, skipping insertion in model container [2024-12-02 14:13:40,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:40" (3/3) ... [2024-12-02 14:13:40,225 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_add_size_saturating_harness.i [2024-12-02 14:13:40,237 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:13:40,239 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_add_size_saturating_harness.i that has 6 procedures, 47 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 14:13:40,280 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:13:40,290 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;@63252a55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:13:40,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:13:40,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 33 states have internal predecessors, (37), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 14:13:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 14:13:40,299 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:13:40,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:13:40,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:13:40,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:13:40,304 INFO L85 PathProgramCache]: Analyzing trace with hash 972435346, now seen corresponding path program 1 times [2024-12-02 14:13:40,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:13:40,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746263403] [2024-12-02 14:13:40,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:13:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:13:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:13:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:13:48,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:13:48,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746263403] [2024-12-02 14:13:48,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746263403] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:13:48,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:13:48,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:13:48,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534432290] [2024-12-02 14:13:48,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:13:48,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:13:48,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:13:48,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:13:48,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:13:48,207 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 33 states have internal predecessors, (37), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:13:48,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:13:48,518 INFO L93 Difference]: Finished difference Result 66 states and 83 transitions. [2024-12-02 14:13:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:13:48,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-12-02 14:13:48,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:13:48,526 INFO L225 Difference]: With dead ends: 66 [2024-12-02 14:13:48,527 INFO L226 Difference]: Without dead ends: 42 [2024-12-02 14:13:48,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:13:48,532 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 4 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:13:48,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 265 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:13:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-12-02 14:13:48,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2024-12-02 14:13:48,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 29 states have internal predecessors, (31), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 14:13:48,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2024-12-02 14:13:48,562 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 24 [2024-12-02 14:13:48,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:13:48,563 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2024-12-02 14:13:48,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:13:48,563 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2024-12-02 14:13:48,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 14:13:48,564 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:13:48,565 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:13:48,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:13:48,565 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:13:48,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:13:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash 975265491, now seen corresponding path program 1 times [2024-12-02 14:13:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:13:48,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448328981] [2024-12-02 14:13:48,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:13:48,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:13:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:13:56,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:13:56,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:13:56,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448328981] [2024-12-02 14:13:56,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448328981] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:13:56,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:13:56,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:13:56,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788904508] [2024-12-02 14:13:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:13:56,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:13:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:13:56,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:13:56,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:13:56,200 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:13:56,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:13:56,316 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2024-12-02 14:13:56,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:13:56,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-12-02 14:13:56,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:13:56,318 INFO L225 Difference]: With dead ends: 46 [2024-12-02 14:13:56,318 INFO L226 Difference]: Without dead ends: 39 [2024-12-02 14:13:56,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:13:56,320 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:13:56,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:13:56,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-12-02 14:13:56,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-12-02 14:13:56,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 27 states have internal predecessors, (28), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 14:13:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2024-12-02 14:13:56,327 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 24 [2024-12-02 14:13:56,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:13:56,327 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2024-12-02 14:13:56,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:13:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2024-12-02 14:13:56,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 14:13:56,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:13:56,329 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:13:56,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:13:56,329 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:13:56,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:13:56,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1547524588, now seen corresponding path program 1 times [2024-12-02 14:13:56,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:13:56,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004402397] [2024-12-02 14:13:56,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:13:56,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:14:03,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:03,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004402397] [2024-12-02 14:14:03,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004402397] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:03,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:03,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:14:03,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119082473] [2024-12-02 14:14:03,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:03,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:14:03,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:03,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:14:03,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:14:03,285 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:14:03,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:03,409 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2024-12-02 14:14:03,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:14:03,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-12-02 14:14:03,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:03,411 INFO L225 Difference]: With dead ends: 43 [2024-12-02 14:14:03,411 INFO L226 Difference]: Without dead ends: 38 [2024-12-02 14:14:03,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:14:03,412 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:03,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 147 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:14:03,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-12-02 14:14:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-12-02 14:14:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.125) internal successors, (27), 26 states have internal predecessors, (27), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 14:14:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2024-12-02 14:14:03,417 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 24 [2024-12-02 14:14:03,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:03,418 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2024-12-02 14:14:03,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:14:03,418 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2024-12-02 14:14:03,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 14:14:03,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:03,419 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:14:03,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:14:03,420 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:03,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:03,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1544694443, now seen corresponding path program 1 times [2024-12-02 14:14:03,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:03,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924735761] [2024-12-02 14:14:03,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:03,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:14:10,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:10,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924735761] [2024-12-02 14:14:10,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924735761] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:10,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:10,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:14:10,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701489892] [2024-12-02 14:14:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:10,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:14:10,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:10,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:14:10,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:14:10,093 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:14:10,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:10,386 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2024-12-02 14:14:10,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:14:10,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-12-02 14:14:10,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:10,387 INFO L225 Difference]: With dead ends: 42 [2024-12-02 14:14:10,387 INFO L226 Difference]: Without dead ends: 27 [2024-12-02 14:14:10,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:14:10,389 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:10,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 219 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:14:10,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-02 14:14:10,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-12-02 14:14:10,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 14:14:10,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2024-12-02 14:14:10,392 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 24 [2024-12-02 14:14:10,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:10,392 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2024-12-02 14:14:10,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:14:10,392 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2024-12-02 14:14:10,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 14:14:10,393 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:10,393 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 14:14:10,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:14:10,393 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:10,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:10,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1687413384, now seen corresponding path program 1 times [2024-12-02 14:14:10,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:10,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774292082] [2024-12-02 14:14:10,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:10,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:14:16,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:16,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774292082] [2024-12-02 14:14:16,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774292082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:16,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:16,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:14:16,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212188703] [2024-12-02 14:14:16,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:16,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:14:16,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:16,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:14:16,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:14:16,297 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 14:14:16,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:16,503 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2024-12-02 14:14:16,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:14:16,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-12-02 14:14:16,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:16,505 INFO L225 Difference]: With dead ends: 37 [2024-12-02 14:14:16,505 INFO L226 Difference]: Without dead ends: 32 [2024-12-02 14:14:16,505 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 [2024-12-02 14:14:16,505 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:16,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 155 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:14:16,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-12-02 14:14:16,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2024-12-02 14:14:16,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 14:14:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2024-12-02 14:14:16,509 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 28 [2024-12-02 14:14:16,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:16,510 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-12-02 14:14:16,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 14:14:16,510 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2024-12-02 14:14:16,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 14:14:16,511 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:16,511 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 14:14:16,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:14:16,511 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:16,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:16,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1684583239, now seen corresponding path program 1 times [2024-12-02 14:14:16,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:16,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654060619] [2024-12-02 14:14:16,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:16,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:22,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:14:22,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:22,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654060619] [2024-12-02 14:14:22,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654060619] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:22,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:22,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:14:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902058850] [2024-12-02 14:14:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:22,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:14:22,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:22,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:14:22,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:14:22,955 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 14:14:23,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:23,124 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2024-12-02 14:14:23,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:14:23,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-12-02 14:14:23,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:23,126 INFO L225 Difference]: With dead ends: 36 [2024-12-02 14:14:23,126 INFO L226 Difference]: Without dead ends: 27 [2024-12-02 14:14:23,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:14:23,127 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:23,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:14:23,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-02 14:14:23,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-12-02 14:14:23,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 18 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 14:14:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-12-02 14:14:23,133 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 28 [2024-12-02 14:14:23,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:23,133 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-12-02 14:14:23,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 14:14:23,134 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-12-02 14:14:23,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 14:14:23,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:23,134 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 14:14:23,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:14:23,135 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:23,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:23,135 INFO L85 PathProgramCache]: Analyzing trace with hash 800099449, now seen corresponding path program 1 times [2024-12-02 14:14:23,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:23,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797653215] [2024-12-02 14:14:23,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:23,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:29,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:14:29,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:29,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797653215] [2024-12-02 14:14:29,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797653215] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:29,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:29,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:14:29,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518302053] [2024-12-02 14:14:29,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:29,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:14:29,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:29,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:14:29,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:14:29,265 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 14:14:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:29,372 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2024-12-02 14:14:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:14:29,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-12-02 14:14:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:29,374 INFO L225 Difference]: With dead ends: 31 [2024-12-02 14:14:29,374 INFO L226 Difference]: Without dead ends: 26 [2024-12-02 14:14:29,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:14:29,375 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:29,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 83 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:14:29,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-12-02 14:14:29,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-12-02 14:14:29,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 14:14:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2024-12-02 14:14:29,380 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 28 [2024-12-02 14:14:29,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:29,380 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2024-12-02 14:14:29,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 14:14:29,380 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2024-12-02 14:14:29,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 14:14:29,381 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:29,381 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 14:14:29,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:14:29,381 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:29,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:29,382 INFO L85 PathProgramCache]: Analyzing trace with hash 802929594, now seen corresponding path program 1 times [2024-12-02 14:14:29,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:29,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903604011] [2024-12-02 14:14:29,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:29,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:14:35,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:35,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903604011] [2024-12-02 14:14:35,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903604011] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:35,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:35,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 14:14:35,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743555642] [2024-12-02 14:14:35,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:35,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 14:14:35,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:35,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 14:14:35,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:14:35,703 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 14:14:36,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:36,033 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2024-12-02 14:14:36,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:14:36,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-12-02 14:14:36,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:36,034 INFO L225 Difference]: With dead ends: 26 [2024-12-02 14:14:36,034 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 14:14:36,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:14:36,034 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:36,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 121 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:14:36,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 14:14:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 14:14:36,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:14:36,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 14:14:36,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-12-02 14:14:36,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:36,036 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 14:14:36,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 14:14:36,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 14:14:36,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 14:14:36,038 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:14:36,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:14:36,040 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:14:36,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 14:14:36,367 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:14:36,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:14:36 BoogieIcfgContainer [2024-12-02 14:14:36,373 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:14:36,373 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:14:36,373 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:14:36,373 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:14:36,374 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:40" (3/4) ... [2024-12-02 14:14:36,376 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 14:14:36,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2024-12-02 14:14:36,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint32_t [2024-12-02 14:14:36,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-12-02 14:14:36,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-02 14:14:36,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_u64_saturating [2024-12-02 14:14:36,388 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 108 nodes and edges [2024-12-02 14:14:36,389 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2024-12-02 14:14:36,389 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-12-02 14:14:36,390 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-12-02 14:14:36,390 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 14:14:36,391 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 14:14:36,391 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 14:14:36,392 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 14:14:36,940 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:14:36,940 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 14:14:36,940 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:14:36,941 INFO L158 Benchmark]: Toolchain (without parser) took 64391.44ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 86.6MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 998.7MB. Max. memory is 16.1GB. [2024-12-02 14:14:36,942 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:14:36,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1679.36ms. Allocated memory is still 117.4MB. Free memory was 86.3MB in the beginning and 41.1MB in the end (delta: 45.2MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2024-12-02 14:14:36,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.15ms. Allocated memory is still 117.4MB. Free memory was 41.1MB in the beginning and 34.4MB in the end (delta: 6.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:14:36,942 INFO L158 Benchmark]: Boogie Preprocessor took 110.48ms. Allocated memory is still 117.4MB. Free memory was 34.4MB in the beginning and 64.2MB in the end (delta: -29.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2024-12-02 14:14:36,943 INFO L158 Benchmark]: RCFGBuilder took 5776.56ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 64.2MB in the beginning and 81.5MB in the end (delta: -17.4MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2024-12-02 14:14:36,943 INFO L158 Benchmark]: TraceAbstraction took 56154.18ms. Allocated memory was 184.5MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 81.5MB in the beginning and 620.7MB in the end (delta: -539.2MB). Peak memory consumption was 838.0MB. Max. memory is 16.1GB. [2024-12-02 14:14:36,943 INFO L158 Benchmark]: Witness Printer took 567.16ms. Allocated memory is still 1.6GB. Free memory was 620.7MB in the beginning and 1.4GB in the end (delta: -794.5MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. [2024-12-02 14:14:36,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1679.36ms. Allocated memory is still 117.4MB. Free memory was 86.3MB in the beginning and 41.1MB in the end (delta: 45.2MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.15ms. Allocated memory is still 117.4MB. Free memory was 41.1MB in the beginning and 34.4MB in the end (delta: 6.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 110.48ms. Allocated memory is still 117.4MB. Free memory was 34.4MB in the beginning and 64.2MB in the end (delta: -29.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * RCFGBuilder took 5776.56ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 64.2MB in the beginning and 81.5MB in the end (delta: -17.4MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. * TraceAbstraction took 56154.18ms. Allocated memory was 184.5MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 81.5MB in the beginning and 620.7MB in the end (delta: -539.2MB). Peak memory consumption was 838.0MB. Max. memory is 16.1GB. * Witness Printer took 567.16ms. Allocated memory is still 1.6GB. Free memory was 620.7MB in the beginning and 1.4GB in the end (delta: -794.5MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 6944]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [6944-6955] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.8s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 1204 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 932 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 272 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 17.1s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 549 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 14:14:37,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976c34c8-875a-4f7a-a569-06289387883e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE