./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:37:01,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:37:01,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2024-11-02 12:37:01,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:37:01,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:37:01,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:37:01,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:37:01,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:37:01,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:37:01,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:37:01,219 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:37:01,220 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:37:01,220 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:37:01,221 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:37:01,221 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:37:01,222 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:37:01,222 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:37:01,223 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:37:01,223 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:37:01,224 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:37:01,224 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:37:01,228 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:37:01,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:37:01,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:37:01,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:37:01,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:37:01,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:37:01,246 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:37:01,247 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:37:01,247 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 12:37:01,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:37:01,248 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:37:01,248 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:37:01,248 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:37:01,249 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:37:01,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:37:01,250 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:37:01,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:37:01,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:01,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:37:01,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:37:01,253 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:37:01,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:37:01,254 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:37:01,254 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:37:01,255 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:37:01,255 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 [2024-11-02 12:37:01,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:37:01,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:37:01,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:37:01,591 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:37:01,593 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:37:01,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-02 12:37:03,899 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:37:04,449 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:37:04,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2024-11-02 12:37:04,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/data/e3a2351e0/e9706ad2f7fd4d10be0c88cc5a0ac8a7/FLAG8bbc7db3a [2024-11-02 12:37:04,520 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/data/e3a2351e0/e9706ad2f7fd4d10be0c88cc5a0ac8a7 [2024-11-02 12:37:04,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:37:04,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:37:04,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:04,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:37:04,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:37:04,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:04" (1/1) ... [2024-11-02 12:37:04,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e69a054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:04, skipping insertion in model container [2024-11-02 12:37:04,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:04" (1/1) ... [2024-11-02 12:37:04,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:37:05,389 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,398 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,410 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,413 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,416 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,423 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,429 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,439 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,439 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,446 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,452 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,453 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,455 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,459 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,461 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,470 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,471 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,472 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,482 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,499 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,505 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,510 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,513 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,516 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,517 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,526 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,528 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,529 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,531 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,535 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,540 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,573 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,573 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,574 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,576 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,581 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,582 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,605 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,644 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:37:05,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:05,686 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:37:06,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:06,049 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:37:06,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06 WrapperNode [2024-11-02 12:37:06,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:06,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:06,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:37:06,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:37:06,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,184 INFO L138 Inliner]: procedures = 118, calls = 369, calls flagged for inlining = 54, calls inlined = 37, statements flattened = 917 [2024-11-02 12:37:06,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:06,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:37:06,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:37:06,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:37:06,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:37:06,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:37:06,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:37:06,366 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:37:06,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (1/1) ... [2024-11-02 12:37:06,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:06,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:06,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:37:06,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84d1334-3754-4d9c-b086-82d014f721d6/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:37:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-02 12:37:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-02 12:37:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:37:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:37:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-02 12:37:06,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-02 12:37:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:37:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2024-11-02 12:37:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2024-11-02 12:37:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2024-11-02 12:37:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2024-11-02 12:37:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2024-11-02 12:37:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2024-11-02 12:37:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2024-11-02 12:37:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2024-11-02 12:37:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2024-11-02 12:37:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2024-11-02 12:37:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2024-11-02 12:37:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2024-11-02 12:37:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 12:37:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 12:37:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2024-11-02 12:37:06,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2024-11-02 12:37:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-02 12:37:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-02 12:37:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 12:37:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 12:37:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2024-11-02 12:37:06,472 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2024-11-02 12:37:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:37:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-02 12:37:06,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-02 12:37:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2024-11-02 12:37:06,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2024-11-02 12:37:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2024-11-02 12:37:06,473 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2024-11-02 12:37:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2024-11-02 12:37:06,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2024-11-02 12:37:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:37:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:37:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:37:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:37:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2024-11-02 12:37:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2024-11-02 12:37:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:37:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-11-02 12:37:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-11-02 12:37:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:37:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-02 12:37:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-02 12:37:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2024-11-02 12:37:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2024-11-02 12:37:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-02 12:37:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-02 12:37:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2024-11-02 12:37:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2024-11-02 12:37:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:37:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2024-11-02 12:37:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2024-11-02 12:37:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2024-11-02 12:37:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2024-11-02 12:37:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-02 12:37:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-02 12:37:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2024-11-02 12:37:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2024-11-02 12:37:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2024-11-02 12:37:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2024-11-02 12:37:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:37:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2024-11-02 12:37:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2024-11-02 12:37:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-02 12:37:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-02 12:37:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2024-11-02 12:37:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2024-11-02 12:37:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:37:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:37:06,947 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:37:06,951 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:37:07,459 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-02 12:37:10,746 INFO L? ?]: Removed 552 outVars from TransFormulas that were not future-live. [2024-11-02 12:37:10,746 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:37:11,101 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:37:11,102 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:37:11,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:11 BoogieIcfgContainer [2024-11-02 12:37:11,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:37:11,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:37:11,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:37:11,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:37:11,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:37:04" (1/3) ... [2024-11-02 12:37:11,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1754290f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:11, skipping insertion in model container [2024-11-02 12:37:11,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:06" (2/3) ... [2024-11-02 12:37:11,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1754290f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:11, skipping insertion in model container [2024-11-02 12:37:11,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:11" (3/3) ... [2024-11-02 12:37:11,116 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2024-11-02 12:37:11,137 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:37:11,137 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 111 error locations. [2024-11-02 12:37:11,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:37:11,220 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@728ab211, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:37:11,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2024-11-02 12:37:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 482 states, 259 states have (on average 1.7335907335907337) internal successors, (449), 379 states have internal predecessors, (449), 80 states have call successors, (80), 32 states have call predecessors, (80), 31 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-02 12:37:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-02 12:37:11,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:11,242 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:11,242 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [kfreeErr0ASSERT_VIOLATIONMEMORY_FREE, kfreeErr1ASSERT_VIOLATIONMEMORY_FREE, kfreeErr2ASSERT_VIOLATIONMEMORY_FREE, tegra_rtc_set_alarmErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 107 more)] === [2024-11-02 12:37:11,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:11,249 INFO L85 PathProgramCache]: Analyzing trace with hash -594450758, now seen corresponding path program 1 times [2024-11-02 12:37:11,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:11,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511078894] [2024-11-02 12:37:11,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:11,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:12,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:12,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511078894] [2024-11-02 12:37:12,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511078894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:12,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:12,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:37:12,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26690385] [2024-11-02 12:37:12,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:12,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:37:12,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:12,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:37:12,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:37:12,407 INFO L87 Difference]: Start difference. First operand has 482 states, 259 states have (on average 1.7335907335907337) internal successors, (449), 379 states have internal predecessors, (449), 80 states have call successors, (80), 32 states have call predecessors, (80), 31 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:37:14,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:16,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:18,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:20,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:20,774 INFO L93 Difference]: Finished difference Result 764 states and 1037 transitions. [2024-11-02 12:37:20,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:37:20,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-11-02 12:37:20,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:20,798 INFO L225 Difference]: With dead ends: 764 [2024-11-02 12:37:20,798 INFO L226 Difference]: Without dead ends: 751 [2024-11-02 12:37:20,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:37:20,804 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 383 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 147 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:20,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1407 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1193 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2024-11-02 12:37:20,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-02 12:37:20,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 668. [2024-11-02 12:37:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 406 states have (on average 1.729064039408867) internal successors, (702), 520 states have internal predecessors, (702), 110 states have call successors, (110), 31 states have call predecessors, (110), 41 states have return successors, (166), 120 states have call predecessors, (166), 109 states have call successors, (166) [2024-11-02 12:37:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 978 transitions. [2024-11-02 12:37:20,928 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 978 transitions. Word has length 8 [2024-11-02 12:37:20,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:20,929 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 978 transitions. [2024-11-02 12:37:20,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:37:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 978 transitions. [2024-11-02 12:37:20,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 12:37:20,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:20,931 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:20,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:37:20,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [kfreeErr0ASSERT_VIOLATIONMEMORY_FREE, kfreeErr1ASSERT_VIOLATIONMEMORY_FREE, kfreeErr2ASSERT_VIOLATIONMEMORY_FREE, tegra_rtc_set_alarmErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 107 more)] === [2024-11-02 12:37:20,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:20,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1248103769, now seen corresponding path program 1 times [2024-11-02 12:37:20,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:20,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926995132] [2024-11-02 12:37:20,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:20,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:21,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:21,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926995132] [2024-11-02 12:37:21,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926995132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:21,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:21,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:37:21,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081442036] [2024-11-02 12:37:21,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:21,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:37:21,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:21,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:37:21,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:37:21,592 INFO L87 Difference]: Start difference. First operand 668 states and 978 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:37:23,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:25,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:27,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:30,113 INFO L93 Difference]: Finished difference Result 1005 states and 1521 transitions. [2024-11-02 12:37:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:37:30,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-11-02 12:37:30,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:30,123 INFO L225 Difference]: With dead ends: 1005 [2024-11-02 12:37:30,123 INFO L226 Difference]: Without dead ends: 1005 [2024-11-02 12:37:30,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:37:30,125 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 374 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 138 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:30,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 1311 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1170 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2024-11-02 12:37:30,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-02 12:37:30,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 936. [2024-11-02 12:37:30,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 621 states have (on average 1.748792270531401) internal successors, (1086), 738 states have internal predecessors, (1086), 162 states have call successors, (162), 31 states have call predecessors, (162), 42 states have return successors, (264), 172 states have call predecessors, (264), 161 states have call successors, (264) [2024-11-02 12:37:30,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1512 transitions. [2024-11-02 12:37:30,239 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1512 transitions. Word has length 9 [2024-11-02 12:37:30,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:30,241 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1512 transitions. [2024-11-02 12:37:30,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:37:30,243 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1512 transitions. [2024-11-02 12:37:30,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 12:37:30,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:30,244 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:30,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:37:30,244 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [kfreeErr0ASSERT_VIOLATIONMEMORY_FREE, kfreeErr1ASSERT_VIOLATIONMEMORY_FREE, kfreeErr2ASSERT_VIOLATIONMEMORY_FREE, tegra_rtc_set_alarmErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 107 more)] === [2024-11-02 12:37:30,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:30,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2081115941, now seen corresponding path program 1 times [2024-11-02 12:37:30,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:30,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673938549] [2024-11-02 12:37:30,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:30,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 12:37:30,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:30,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673938549] [2024-11-02 12:37:30,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673938549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:30,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:30,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:37:30,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373799703] [2024-11-02 12:37:30,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:30,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:37:30,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:30,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:37:30,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:37:30,841 INFO L87 Difference]: Start difference. First operand 936 states and 1512 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-02 12:37:32,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:34,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:36,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []