./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 e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/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_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 0.2.3-dev-e7bb482 [2023-11-06 20:55:33,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:55:33,402 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-06 20:55:33,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:55:33,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:55:33,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:55:33,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:55:33,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:55:33,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:55:33,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:55:33,440 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:55:33,440 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:55:33,441 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:55:33,442 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:55:33,442 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:55:33,443 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:55:33,443 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:55:33,444 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:55:33,445 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:55:33,445 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:55:33,446 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:55:33,447 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:55:33,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:55:33,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:55:33,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:55:33,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:55:33,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:55:33,450 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:55:33,450 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:55:33,451 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:55:33,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:55:33,452 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:55:33,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:55:33,453 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:55:33,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:55:33,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:55:33,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:55:33,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:55:33,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:55:33,454 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:55:33,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:55:33,455 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:55:33,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:55:33,456 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_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 [2023-11-06 20:55:33,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:55:33,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:55:33,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:55:33,765 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:55:33,765 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:55:33,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-06 20:55:36,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:55:37,490 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:55:37,492 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-06 20:55:37,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/data/0987b4889/c1c441f4fdc94a79a509f5730b8436aa/FLAGa361b6912 [2023-11-06 20:55:37,548 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/data/0987b4889/c1c441f4fdc94a79a509f5730b8436aa [2023-11-06 20:55:37,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:55:37,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:55:37,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:37,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:55:37,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:55:37,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:37" (1/1) ... [2023-11-06 20:55:37,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e1404d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:37, skipping insertion in model container [2023-11-06 20:55:37,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:37" (1/1) ... [2023-11-06 20:55:37,668 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:55:38,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:38,589 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 20:55:38,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@33765810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:38, skipping insertion in model container [2023-11-06 20:55:38,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:38,591 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:55:38,593 INFO L158 Benchmark]: Toolchain (without parser) took 1033.17ms. Allocated memory is still 132.1MB. Free memory was 97.4MB in the beginning and 98.0MB in the end (delta: -667.5kB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2023-11-06 20:55:38,594 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:55:38,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1030.26ms. Allocated memory is still 132.1MB. Free memory was 97.4MB in the beginning and 98.1MB in the end (delta: -695.6kB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2023-11-06 20:55:38,596 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1030.26ms. Allocated memory is still 132.1MB. Free memory was 97.4MB in the beginning and 98.1MB in the end (delta: -695.6kB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1836]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/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_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 0.2.3-dev-e7bb482 [2023-11-06 20:55:41,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:55:41,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-06 20:55:41,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:55:41,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:55:41,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:55:41,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:55:41,338 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:55:41,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:55:41,344 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:55:41,344 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:55:41,345 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:55:41,346 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:55:41,347 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:55:41,348 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:55:41,348 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:55:41,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:55:41,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:55:41,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:55:41,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:55:41,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:55:41,353 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:55:41,354 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:55:41,354 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:55:41,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:55:41,355 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:55:41,356 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:55:41,356 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:55:41,357 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:55:41,357 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:55:41,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:55:41,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:55:41,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:55:41,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:55:41,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:55:41,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:55:41,362 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:55:41,362 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:55:41,362 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:55:41,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:55:41,363 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 [2023-11-06 20:55:41,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:55:41,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:55:41,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:55:41,839 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:55:41,840 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:55:41,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-06 20:55:45,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:55:45,635 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:55:45,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-06 20:55:45,675 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/data/46f5cf8f4/e03a595f72be414ab8da373e8c129feb/FLAG677b3761a [2023-11-06 20:55:45,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/data/46f5cf8f4/e03a595f72be414ab8da373e8c129feb [2023-11-06 20:55:45,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:55:45,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:55:45,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:45,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:55:45,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:55:45,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:45" (1/1) ... [2023-11-06 20:55:45,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100a1a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:45, skipping insertion in model container [2023-11-06 20:55:45,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:45" (1/1) ... [2023-11-06 20:55:45,810 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:55:46,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:46,689 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:55:46,714 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:55:46,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:46,912 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:55:47,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:47,086 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:55:47,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47 WrapperNode [2023-11-06 20:55:47,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:47,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:55:47,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:55:47,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:55:47,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,234 INFO L138 Inliner]: procedures = 121, calls = 369, calls flagged for inlining = 54, calls inlined = 37, statements flattened = 817 [2023-11-06 20:55:47,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:55:47,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:55:47,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:55:47,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:55:47,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:55:47,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:55:47,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:55:47,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:55:47,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (1/1) ... [2023-11-06 20:55:47,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:55:47,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:55:47,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:55:47,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:55:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-06 20:55:47,480 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-06 20:55:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 20:55:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 20:55:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:55:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 20:55:47,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 20:55:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2023-11-06 20:55:47,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2023-11-06 20:55:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2023-11-06 20:55:47,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2023-11-06 20:55:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2023-11-06 20:55:47,483 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2023-11-06 20:55:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2023-11-06 20:55:47,484 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2023-11-06 20:55:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2023-11-06 20:55:47,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2023-11-06 20:55:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2023-11-06 20:55:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2023-11-06 20:55:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 20:55:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 20:55:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2023-11-06 20:55:47,486 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2023-11-06 20:55:47,486 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-06 20:55:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-06 20:55:47,487 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-06 20:55:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-06 20:55:47,487 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2023-11-06 20:55:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2023-11-06 20:55:47,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 20:55:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 20:55:47,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2023-11-06 20:55:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2023-11-06 20:55:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2023-11-06 20:55:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2023-11-06 20:55:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2023-11-06 20:55:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2023-11-06 20:55:47,491 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 20:55:47,491 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 20:55:47,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:55:47,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:55:47,491 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2023-11-06 20:55:47,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2023-11-06 20:55:47,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:55:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-06 20:55:47,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-06 20:55:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:55:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-06 20:55:47,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-06 20:55:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2023-11-06 20:55:47,492 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2023-11-06 20:55:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 20:55:47,493 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 20:55:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-06 20:55:47,493 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-06 20:55:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 20:55:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 20:55:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:55:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:55:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-06 20:55:47,494 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-06 20:55:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 20:55:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-06 20:55:47,495 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-06 20:55:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:55:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-06 20:55:47,496 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-06 20:55:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2023-11-06 20:55:47,497 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2023-11-06 20:55:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2023-11-06 20:55:47,497 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2023-11-06 20:55:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2023-11-06 20:55:47,497 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2023-11-06 20:55:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-06 20:55:47,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-06 20:55:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2023-11-06 20:55:47,498 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2023-11-06 20:55:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:55:47,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:55:47,872 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:55:47,877 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:55:48,565 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 20:55:50,483 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:55:50,496 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:55:50,496 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 20:55:50,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:55:50 BoogieIcfgContainer [2023-11-06 20:55:50,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:55:50,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:55:50,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:55:50,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:55:50,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:55:45" (1/3) ... [2023-11-06 20:55:50,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d591ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:55:50, skipping insertion in model container [2023-11-06 20:55:50,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:47" (2/3) ... [2023-11-06 20:55:50,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d591ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:55:50, skipping insertion in model container [2023-11-06 20:55:50,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:55:50" (3/3) ... [2023-11-06 20:55:50,512 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-06 20:55:50,530 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:55:50,531 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 111 error locations. [2023-11-06 20:55:50,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:55:50,598 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@d686fe5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:55:50,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2023-11-06 20:55:50,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 573 states, 350 states have (on average 1.58) internal successors, (553), 470 states have internal predecessors, (553), 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) [2023-11-06 20:55:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 20:55:50,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:55:50,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:55:50,623 INFO L420 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)] === [2023-11-06 20:55:50,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:55:50,631 INFO L85 PathProgramCache]: Analyzing trace with hash 273930939, now seen corresponding path program 1 times [2023-11-06 20:55:50,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:55:50,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986210513] [2023-11-06 20:55:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:55:50,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:55:50,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:55:50,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:55:50,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 20:55:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:55:50,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 20:55:50,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:55:51,079 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 20:55:51,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:55:51,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:55:51,152 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:55:51,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986210513] [2023-11-06 20:55:51,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986210513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:55:51,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:55:51,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 20:55:51,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246061368] [2023-11-06 20:55:51,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:55:51,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 20:55:51,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:55:51,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 20:55:51,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:55:51,205 INFO L87 Difference]: Start difference. First operand has 573 states, 350 states have (on average 1.58) internal successors, (553), 470 states have internal predecessors, (553), 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 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2023-11-06 20:55:55,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:55:55,594 INFO L93 Difference]: Finished difference Result 911 states and 1207 transitions. [2023-11-06 20:55:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 20:55:55,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 10 [2023-11-06 20:55:55,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:55:55,619 INFO L225 Difference]: With dead ends: 911 [2023-11-06 20:55:55,619 INFO L226 Difference]: Without dead ends: 897 [2023-11-06 20:55:55,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 20:55:55,625 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 483 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-06 20:55:55,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1557 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-06 20:55:55,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2023-11-06 20:55:55,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 800. [2023-11-06 20:55:55,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 538 states have (on average 1.587360594795539) internal successors, (854), 652 states have internal predecessors, (854), 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) [2023-11-06 20:55:55,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1130 transitions. [2023-11-06 20:55:55,770 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1130 transitions. Word has length 10 [2023-11-06 20:55:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:55:55,771 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 1130 transitions. [2023-11-06 20:55:55,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2023-11-06 20:55:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1130 transitions. [2023-11-06 20:55:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 20:55:55,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:55:55,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:55:55,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 20:55:55,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:55:55,974 INFO L420 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)] === [2023-11-06 20:55:55,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:55:55,974 INFO L85 PathProgramCache]: Analyzing trace with hash -98074979, now seen corresponding path program 1 times [2023-11-06 20:55:55,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:55:55,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791169639] [2023-11-06 20:55:55,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:55:55,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:55:55,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:55:56,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:55:56,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 20:55:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:55:56,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 20:55:56,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:55:56,279 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 20:55:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:55:56,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:55:56,419 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:55:56,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791169639] [2023-11-06 20:55:56,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791169639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:55:56,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:55:56,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 20:55:56,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213118461] [2023-11-06 20:55:56,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:55:56,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 20:55:56,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:55:56,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 20:55:56,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:55:56,424 INFO L87 Difference]: Start difference. First operand 800 states and 1130 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2023-11-06 20:56:01,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:56:01,404 INFO L93 Difference]: Finished difference Result 1190 states and 1738 transitions. [2023-11-06 20:56:01,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 20:56:01,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 11 [2023-11-06 20:56:01,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:56:01,416 INFO L225 Difference]: With dead ends: 1190 [2023-11-06 20:56:01,416 INFO L226 Difference]: Without dead ends: 1190 [2023-11-06 20:56:01,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 20:56:01,418 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 472 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-06 20:56:01,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1710 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-06 20:56:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2023-11-06 20:56:01,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1117. [2023-11-06 20:56:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 802 states have (on average 1.6209476309226933) internal successors, (1300), 919 states have internal predecessors, (1300), 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) [2023-11-06 20:56:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1726 transitions. [2023-11-06 20:56:01,522 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1726 transitions. Word has length 11 [2023-11-06 20:56:01,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:56:01,522 INFO L495 AbstractCegarLoop]: Abstraction has 1117 states and 1726 transitions. [2023-11-06 20:56:01,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2023-11-06 20:56:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1726 transitions. [2023-11-06 20:56:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-06 20:56:01,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:56:01,527 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:56:01,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 20:56:01,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:56:01,740 INFO L420 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)] === [2023-11-06 20:56:01,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:56:01,740 INFO L85 PathProgramCache]: Analyzing trace with hash -623848386, now seen corresponding path program 1 times [2023-11-06 20:56:01,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:56:01,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816433240] [2023-11-06 20:56:01,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:56:01,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:56:01,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:56:01,743 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:56:01,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a782078-85c4-4afd-a466-387bdd3b7a80/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 20:56:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:56:02,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 20:56:02,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:56:02,137 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 20:56:02,185 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc15#1.base| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_zalloc_#t~malloc15#1.base|)) (= |c_#valid| (store |c_old(#valid)| |ldv_zalloc_#t~malloc15#1.base| (select |c_#valid| |ldv_zalloc_#t~malloc15#1.base|))))) is different from true [2023-11-06 20:56:02,215 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2023-11-06 20:56:02,248 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2023-11-06 20:56:02,302 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2023-11-06 20:56:02,401 INFO L322 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-06 20:56:02,402 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2023-11-06 20:56:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 20:56:02,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:56:02,446 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:56:02,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816433240] [2023-11-06 20:56:02,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816433240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:56:02,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:56:02,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 20:56:02,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622648131] [2023-11-06 20:56:02,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:56:02,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 20:56:02,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:56:02,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 20:56:02,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2023-11-06 20:56:02,453 INFO L87 Difference]: Start difference. First operand 1117 states and 1726 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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)