./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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2373b89bc80623f6b757372a5453fd0e33def233d789f1b6f34f054b43a428a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:17:59,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:17:59,331 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:17:59,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:17:59,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:17:59,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:17:59,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:17:59,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:17:59,397 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:17:59,397 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:17:59,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:17:59,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:17:59,399 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:17:59,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:17:59,400 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:17:59,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:17:59,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:17:59,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:17:59,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:17:59,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:17:59,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:17:59,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:17:59,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:17:59,403 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:17:59,403 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:17:59,403 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:17:59,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:17:59,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:17:59,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:17:59,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:17:59,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:17:59,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:17:59,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:17:59,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:17:59,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:17:59,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:17:59,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:17:59,405 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:17:59,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:17:59,405 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:17:59,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:17:59,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:17:59,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:17:59,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:17:59,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:17:59,406 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2373b89bc80623f6b757372a5453fd0e33def233d789f1b6f34f054b43a428a7 [2024-11-28 04:17:59,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:17:59,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:17:59,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:17:59,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:17:59,767 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:17:59,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i [2024-11-28 04:18:03,463 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/data/832ca5e5a/acf183289ed3461c8f458ffb18b6bcd6/FLAG2bdd302f4 [2024-11-28 04:18:04,346 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:18:04,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i [2024-11-28 04:18:04,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/data/832ca5e5a/acf183289ed3461c8f458ffb18b6bcd6/FLAG2bdd302f4 [2024-11-28 04:18:04,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/data/832ca5e5a/acf183289ed3461c8f458ffb18b6bcd6 [2024-11-28 04:18:04,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:18:04,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:18:04,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:18:04,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:18:04,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:18:04,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:18:04" (1/1) ... [2024-11-28 04:18:04,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@480d1845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:04, skipping insertion in model container [2024-11-28 04:18:04,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:18:04" (1/1) ... [2024-11-28 04:18:04,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:18:04,954 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[4497,4510] [2024-11-28 04:18:04,968 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[4557,4570] [2024-11-28 04:18:06,015 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,016 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,017 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,018 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,019 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,040 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,041 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,043 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,044 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,047 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,049 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,050 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,050 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,783 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156169,156182] [2024-11-28 04:18:06,787 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156388,156401] [2024-11-28 04:18:06,787 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156584,156597] [2024-11-28 04:18:06,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:18:06,824 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:18:06,842 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[4497,4510] [2024-11-28 04:18:06,842 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[4557,4570] [2024-11-28 04:18:06,963 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,964 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,965 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,965 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,966 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,989 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,989 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,991 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,992 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,997 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,998 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:06,999 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:07,003 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:18:07,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [6944-6955] [2024-11-28 04:18:07,180 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156169,156182] [2024-11-28 04:18:07,182 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156388,156401] [2024-11-28 04:18:07,183 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_0841a4cd-a268-452b-91ae-3c6c8660dd6f/sv-benchmarks/c/aws-c-common/aws_add_size_saturating_harness.i[156584,156597] [2024-11-28 04:18:07,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:18:07,423 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:18:07,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07 WrapperNode [2024-11-28 04:18:07,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:18:07,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:18:07,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:18:07,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:18:07,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,552 INFO L138 Inliner]: procedures = 669, calls = 1209, calls flagged for inlining = 41, calls inlined = 4, statements flattened = 487 [2024-11-28 04:18:07,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:18:07,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:18:07,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:18:07,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:18:07,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,713 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]. [2024-11-28 04:18:07,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,751 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,771 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:18:07,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:18:07,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:18:07,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:18:07,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (1/1) ... [2024-11-28 04:18:07,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:18:07,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:18:07,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:18:07,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:18:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 04:18:07,877 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 04:18:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:18:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:18:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:18:07,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:18:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:18:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:18:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:18:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:18:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:18:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint32_t [2024-11-28 04:18:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint32_t [2024-11-28 04:18:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_u64_saturating [2024-11-28 04:18:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_u64_saturating [2024-11-28 04:18:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:18:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:18:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 04:18:07,882 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 04:18:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:18:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:18:08,192 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:18:08,196 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:18:14,532 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-28 04:18:14,532 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:18:14,546 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:18:14,547 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:18:14,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:18:14 BoogieIcfgContainer [2024-11-28 04:18:14,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:18:14,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:18:14,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:18:14,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:18:14,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:18:04" (1/3) ... [2024-11-28 04:18:14,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415558b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:18:14, skipping insertion in model container [2024-11-28 04:18:14,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:18:07" (2/3) ... [2024-11-28 04:18:14,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415558b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:18:14, skipping insertion in model container [2024-11-28 04:18:14,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:18:14" (3/3) ... [2024-11-28 04:18:14,561 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_add_size_saturating_harness.i [2024-11-28 04:18:14,579 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:18:14,585 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. [2024-11-28 04:18:14,660 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:18:14,678 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;@5708eea5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:18:14,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:18:14,685 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) [2024-11-28 04:18:14,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:18:14,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:14,696 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] [2024-11-28 04:18:14,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:14,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash 972435346, now seen corresponding path program 1 times [2024-11-28 04:18:14,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:14,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351644640] [2024-11-28 04:18:14,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:14,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:18:27,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:27,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351644640] [2024-11-28 04:18:27,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351644640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:27,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:27,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129195442] [2024-11-28 04:18:27,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:27,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:27,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:27,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:27,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:27,156 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) [2024-11-28 04:18:27,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:27,555 INFO L93 Difference]: Finished difference Result 66 states and 83 transitions. [2024-11-28 04:18:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:18:27,560 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 [2024-11-28 04:18:27,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:27,568 INFO L225 Difference]: With dead ends: 66 [2024-11-28 04:18:27,568 INFO L226 Difference]: Without dead ends: 42 [2024-11-28 04:18:27,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:18:27,578 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:27,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 265 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:18:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-28 04:18:27,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2024-11-28 04:18:27,615 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) [2024-11-28 04:18:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2024-11-28 04:18:27,622 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 24 [2024-11-28 04:18:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:27,623 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2024-11-28 04:18:27,624 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) [2024-11-28 04:18:27,624 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2024-11-28 04:18:27,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:18:27,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:27,626 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] [2024-11-28 04:18:27,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:18:27,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:27,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:27,627 INFO L85 PathProgramCache]: Analyzing trace with hash 975265491, now seen corresponding path program 1 times [2024-11-28 04:18:27,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:27,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239997972] [2024-11-28 04:18:27,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:27,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:18:39,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:39,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239997972] [2024-11-28 04:18:39,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239997972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:39,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:39,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:18:39,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814776443] [2024-11-28 04:18:39,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:39,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:18:39,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:39,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:18:39,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:18:39,238 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) [2024-11-28 04:18:39,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:39,402 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2024-11-28 04:18:39,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:18:39,403 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 [2024-11-28 04:18:39,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:39,404 INFO L225 Difference]: With dead ends: 46 [2024-11-28 04:18:39,405 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 04:18:39,405 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 [2024-11-28 04:18:39,406 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:39,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:18:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 04:18:39,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-28 04:18:39,413 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) [2024-11-28 04:18:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2024-11-28 04:18:39,415 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 24 [2024-11-28 04:18:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:39,415 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2024-11-28 04:18:39,415 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) [2024-11-28 04:18:39,416 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2024-11-28 04:18:39,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:18:39,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:39,417 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] [2024-11-28 04:18:39,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:18:39,417 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:39,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:39,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1547524588, now seen corresponding path program 1 times [2024-11-28 04:18:39,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:39,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583663425] [2024-11-28 04:18:39,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:39,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:49,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:18:49,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:49,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583663425] [2024-11-28 04:18:49,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583663425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:49,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:49,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:18:49,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019383966] [2024-11-28 04:18:49,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:49,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:49,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:49,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:49,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:18:49,941 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) [2024-11-28 04:18:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:50,122 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2024-11-28 04:18:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:18:50,123 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 [2024-11-28 04:18:50,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:50,124 INFO L225 Difference]: With dead ends: 43 [2024-11-28 04:18:50,124 INFO L226 Difference]: Without dead ends: 38 [2024-11-28 04:18:50,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:18:50,127 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:50,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 147 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:18:50,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-28 04:18:50,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-28 04:18:50,138 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) [2024-11-28 04:18:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2024-11-28 04:18:50,139 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 24 [2024-11-28 04:18:50,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:50,140 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2024-11-28 04:18:50,140 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) [2024-11-28 04:18:50,140 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2024-11-28 04:18:50,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:18:50,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:50,142 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] [2024-11-28 04:18:50,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:18:50,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:50,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:50,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1544694443, now seen corresponding path program 1 times [2024-11-28 04:18:50,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:50,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063601085] [2024-11-28 04:18:50,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:50,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:00,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:19:00,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:00,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063601085] [2024-11-28 04:19:00,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063601085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:00,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:00,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:19:00,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501862939] [2024-11-28 04:19:00,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:00,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:19:00,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:00,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:19:00,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:19:00,869 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) [2024-11-28 04:19:01,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:01,243 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2024-11-28 04:19:01,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:19:01,244 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 [2024-11-28 04:19:01,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:01,245 INFO L225 Difference]: With dead ends: 42 [2024-11-28 04:19:01,245 INFO L226 Difference]: Without dead ends: 27 [2024-11-28 04:19:01,245 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 [2024-11-28 04:19:01,246 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:01,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 219 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:19:01,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-28 04:19:01,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-28 04:19:01,252 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) [2024-11-28 04:19:01,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2024-11-28 04:19:01,253 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 24 [2024-11-28 04:19:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:01,253 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2024-11-28 04:19:01,253 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) [2024-11-28 04:19:01,254 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2024-11-28 04:19:01,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:19:01,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:01,255 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] [2024-11-28 04:19:01,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:19:01,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:01,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1687413384, now seen corresponding path program 1 times [2024-11-28 04:19:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:01,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353936273] [2024-11-28 04:19:01,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:01,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:09,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:19:09,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:09,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353936273] [2024-11-28 04:19:09,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353936273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:09,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:09,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:19:09,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351756491] [2024-11-28 04:19:09,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:09,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:19:09,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:09,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:19:09,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:19:09,639 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) [2024-11-28 04:19:09,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:09,930 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2024-11-28 04:19:09,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:19:09,934 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 [2024-11-28 04:19:09,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:09,938 INFO L225 Difference]: With dead ends: 37 [2024-11-28 04:19:09,938 INFO L226 Difference]: Without dead ends: 32 [2024-11-28 04:19:09,938 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 [2024-11-28 04:19:09,939 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:09,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 155 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:19:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-28 04:19:09,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2024-11-28 04:19:09,948 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) [2024-11-28 04:19:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2024-11-28 04:19:09,949 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 28 [2024-11-28 04:19:09,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:09,950 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-11-28 04:19:09,950 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) [2024-11-28 04:19:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2024-11-28 04:19:09,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:19:09,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:09,953 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] [2024-11-28 04:19:09,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:19:09,953 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:09,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:09,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1684583239, now seen corresponding path program 1 times [2024-11-28 04:19:09,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:09,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691736841] [2024-11-28 04:19:09,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:09,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:19:19,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:19,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691736841] [2024-11-28 04:19:19,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691736841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:19,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:19,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:19:19,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970967203] [2024-11-28 04:19:19,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:19,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:19:19,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:19,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:19:19,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:19:19,099 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) [2024-11-28 04:19:19,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:19,295 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2024-11-28 04:19:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:19:19,296 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 [2024-11-28 04:19:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:19,299 INFO L225 Difference]: With dead ends: 36 [2024-11-28 04:19:19,299 INFO L226 Difference]: Without dead ends: 27 [2024-11-28 04:19:19,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:19:19,301 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 [2024-11-28 04:19:19,301 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] [2024-11-28 04:19:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-28 04:19:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-28 04:19:19,305 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) [2024-11-28 04:19:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-11-28 04:19:19,306 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 28 [2024-11-28 04:19:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:19,306 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-11-28 04:19:19,306 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) [2024-11-28 04:19:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-11-28 04:19:19,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:19:19,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:19,308 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] [2024-11-28 04:19:19,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:19:19,308 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:19,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash 800099449, now seen corresponding path program 1 times [2024-11-28 04:19:19,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:19,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036153054] [2024-11-28 04:19:19,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:19,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:19:27,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:27,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036153054] [2024-11-28 04:19:27,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036153054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:27,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:27,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:19:27,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484194651] [2024-11-28 04:19:27,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:27,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:19:27,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:27,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:19:27,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:19:27,655 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) [2024-11-28 04:19:27,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:27,834 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2024-11-28 04:19:27,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:19:27,835 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 [2024-11-28 04:19:27,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:27,836 INFO L225 Difference]: With dead ends: 31 [2024-11-28 04:19:27,836 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 04:19:27,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:19:27,837 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:27,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 83 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:19:27,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 04:19:27,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-28 04:19:27,847 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) [2024-11-28 04:19:27,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2024-11-28 04:19:27,852 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 28 [2024-11-28 04:19:27,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:27,852 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2024-11-28 04:19:27,852 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) [2024-11-28 04:19:27,852 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2024-11-28 04:19:27,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:19:27,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:19:27,853 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] [2024-11-28 04:19:27,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:19:27,853 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:19:27,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:27,854 INFO L85 PathProgramCache]: Analyzing trace with hash 802929594, now seen corresponding path program 1 times [2024-11-28 04:19:27,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:27,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975415306] [2024-11-28 04:19:27,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:27,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:19:36,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:36,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975415306] [2024-11-28 04:19:36,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975415306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:36,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:36,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:19:36,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883868570] [2024-11-28 04:19:36,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:36,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:19:36,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:36,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:19:36,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:19:36,990 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) [2024-11-28 04:19:37,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:19:37,384 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2024-11-28 04:19:37,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:19:37,385 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 [2024-11-28 04:19:37,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:19:37,385 INFO L225 Difference]: With dead ends: 26 [2024-11-28 04:19:37,385 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:19:37,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:19:37,388 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:19:37,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 121 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:19:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:19:37,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:19:37,391 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) [2024-11-28 04:19:37,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:19:37,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-11-28 04:19:37,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:19:37,393 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:19:37,393 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) [2024-11-28 04:19:37,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:19:37,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:19:37,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:19:37,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:19:37,403 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:37,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:19:37,848 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:19:37,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:19:37 BoogieIcfgContainer [2024-11-28 04:19:37,858 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:19:37,859 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:19:37,859 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:19:37,860 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:19:37,861 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:18:14" (3/4) ... [2024-11-28 04:19:37,864 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:19:37,873 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2024-11-28 04:19:37,873 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint32_t [2024-11-28 04:19:37,873 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-11-28 04:19:37,873 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 04:19:37,873 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_u64_saturating [2024-11-28 04:19:37,882 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 108 nodes and edges [2024-11-28 04:19:37,883 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2024-11-28 04:19:37,884 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-28 04:19:37,884 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 04:19:37,885 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 04:19:37,885 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:19:37,886 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 04:19:37,887 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:19:38,714 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:19:38,714 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:19:38,714 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:19:38,715 INFO L158 Benchmark]: Toolchain (without parser) took 94302.12ms. Allocated memory was 167.8MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 123.7MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 452.1MB. Max. memory is 16.1GB. [2024-11-28 04:19:38,716 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:19:38,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3009.77ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 64.6MB in the end (delta: 58.7MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. [2024-11-28 04:19:38,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.06ms. Allocated memory is still 167.8MB. Free memory was 64.6MB in the beginning and 57.6MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:19:38,717 INFO L158 Benchmark]: Boogie Preprocessor took 232.64ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 57.6MB in the beginning and 454.1MB in the end (delta: -396.5MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-11-28 04:19:38,717 INFO L158 Benchmark]: RCFGBuilder took 6761.98ms. Allocated memory is still 503.3MB. Free memory was 454.1MB in the beginning and 411.3MB in the end (delta: 42.8MB). Peak memory consumption was 137.0MB. Max. memory is 16.1GB. [2024-11-28 04:19:38,718 INFO L158 Benchmark]: TraceAbstraction took 83307.51ms. Allocated memory was 503.3MB in the beginning and 1.9GB in the end (delta: 1.4GB). Free memory was 411.3MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 274.1MB. Max. memory is 16.1GB. [2024-11-28 04:19:38,718 INFO L158 Benchmark]: Witness Printer took 855.33ms. Allocated memory is still 1.9GB. Free memory was 1.5GB in the beginning and 1.4GB in the end (delta: 125.8MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2024-11-28 04:19:38,721 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3009.77ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 64.6MB in the end (delta: 58.7MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.06ms. Allocated memory is still 167.8MB. Free memory was 64.6MB in the beginning and 57.6MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 232.64ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 57.6MB in the beginning and 454.1MB in the end (delta: -396.5MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * RCFGBuilder took 6761.98ms. Allocated memory is still 503.3MB. Free memory was 454.1MB in the beginning and 411.3MB in the end (delta: 42.8MB). Peak memory consumption was 137.0MB. Max. memory is 16.1GB. * TraceAbstraction took 83307.51ms. Allocated memory was 503.3MB in the beginning and 1.9GB in the end (delta: 1.4GB). Free memory was 411.3MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 274.1MB. Max. memory is 16.1GB. * Witness Printer took 855.33ms. Allocated memory is still 1.9GB. Free memory was 1.5GB in the beginning and 1.4GB in the end (delta: 125.8MB). Peak memory consumption was 125.8MB. 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: 82.8s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 1204 SdHoareTripleChecker+Invalid, 1.6s 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, 3.0s 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 26.2s 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! [2024-11-28 04:19:38,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0841a4cd-a268-452b-91ae-3c6c8660dd6f/bin/uautomizer-verify-aQ6SnzHsRB/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