./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 30e01a73 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_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire --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 0.2.3-dev-30e01a7 [2023-11-23 20:33:11,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:11,173 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-23 20:33:11,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:11,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:11,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:11,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:11,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:11,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:11,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:11,249 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:11,249 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:11,250 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:11,252 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:11,262 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:11,262 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:11,263 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:11,263 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:11,263 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:11,264 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:11,264 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:11,265 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:11,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:33:11,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:33:11,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:11,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:11,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:11,268 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 20:33:11,269 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 20:33:11,269 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 20:33:11,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:11,271 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:33:11,271 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:33:11,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:11,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:11,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:11,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:11,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:11,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:11,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:11,273 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:11,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:11,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:11,274 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:11,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:11,275 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_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 [2023-11-23 20:33:11,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:11,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:11,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:11,675 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:11,676 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:11,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-23 20:33:15,096 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:15,588 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:15,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-23 20:33:15,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/data/08b328ccc/c54fd1ff32be49bfb5d80ba9b82bcc33/FLAGc4f7f1db7 [2023-11-23 20:33:15,648 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/data/08b328ccc/c54fd1ff32be49bfb5d80ba9b82bcc33 [2023-11-23 20:33:15,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:15,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:15,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:15,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:15,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:15,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:15" (1/1) ... [2023-11-23 20:33:15,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0d7826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:15, skipping insertion in model container [2023-11-23 20:33:15,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:15" (1/1) ... [2023-11-23 20:33:15,761 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:16,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:16,833 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) [2023-11-23 20:33:16,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2be86ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:16, skipping insertion in model container [2023-11-23 20:33:16,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:16,834 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 20:33:16,837 INFO L158 Benchmark]: Toolchain (without parser) took 1183.28ms. Allocated memory is still 157.3MB. Free memory was 123.3MB in the beginning and 91.3MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-23 20:33:16,839 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:16,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1180.03ms. Allocated memory is still 157.3MB. Free memory was 123.3MB in the beginning and 91.3MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-23 20:33:16,842 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1180.03ms. Allocated memory is still 157.3MB. Free memory was 123.3MB in the beginning and 91.3MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. 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_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire --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 0.2.3-dev-30e01a7 [2023-11-23 20:33:19,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:19,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-23 20:33:19,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:19,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:19,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:19,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:19,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:19,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:19,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:19,952 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:19,953 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:19,953 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:19,955 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:19,955 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:19,956 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:19,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:33:19,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:33:19,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:19,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:19,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:19,963 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 20:33:19,963 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 20:33:19,964 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 20:33:19,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:19,965 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:33:19,965 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:33:19,966 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:33:19,966 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:33:19,967 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:19,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:19,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:33:19,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:19,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:19,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:19,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:19,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:19,971 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:33:19,972 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:19,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:19,972 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:19,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:19,973 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_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 440f273968b34677cc4ba81db9f48373d3cac4b8a75ac1f970ae3fdbbff89c17 [2023-11-23 20:33:20,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:20,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:20,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:20,447 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:20,448 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:20,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-23 20:33:24,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:25,100 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:25,101 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-23 20:33:25,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/data/b0e0b6171/e778b76b906a49f9b7883a533082de25/FLAG90933a2b7 [2023-11-23 20:33:25,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/data/b0e0b6171/e778b76b906a49f9b7883a533082de25 [2023-11-23 20:33:25,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:25,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:25,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:25,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:25,175 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:25,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:25" (1/1) ... [2023-11-23 20:33:25,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e7cfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:25, skipping insertion in model container [2023-11-23 20:33:25,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:25" (1/1) ... [2023-11-23 20:33:25,301 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:26,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:26,522 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 20:33:26,549 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:26,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:26,789 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:26,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:27,034 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:27,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27 WrapperNode [2023-11-23 20:33:27,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:27,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:27,036 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:27,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:27,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,142 INFO L138 Inliner]: procedures = 121, calls = 369, calls flagged for inlining = 54, calls inlined = 37, statements flattened = 817 [2023-11-23 20:33:27,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:27,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:27,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:27,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:27,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:27,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:27,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:27,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:27,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (1/1) ... [2023-11-23 20:33:27,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:27,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:27,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:27,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 20:33:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 20:33:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 20:33:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-23 20:33:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 20:33:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:33:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:33:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2023-11-23 20:33:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2023-11-23 20:33:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2023-11-23 20:33:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2023-11-23 20:33:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2023-11-23 20:33:27,438 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2023-11-23 20:33:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2023-11-23 20:33:27,438 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2023-11-23 20:33:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2023-11-23 20:33:27,439 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2023-11-23 20:33:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2023-11-23 20:33:27,439 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2023-11-23 20:33:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:33:27,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:33:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2023-11-23 20:33:27,440 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2023-11-23 20:33:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 20:33:27,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 20:33:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:33:27,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:33:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2023-11-23 20:33:27,442 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2023-11-23 20:33:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:33:27,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:33:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2023-11-23 20:33:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2023-11-23 20:33:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2023-11-23 20:33:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2023-11-23 20:33:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2023-11-23 20:33:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2023-11-23 20:33:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:27,445 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:33:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2023-11-23 20:33:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2023-11-23 20:33:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:33:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 20:33:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 20:33:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:33:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:33:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:33:27,447 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2023-11-23 20:33:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2023-11-23 20:33:27,447 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:33:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:33:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-23 20:33:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-23 20:33:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-23 20:33:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 20:33:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 20:33:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:33:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-23 20:33:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-23 20:33:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:33:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-23 20:33:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-23 20:33:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:33:27,452 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:33:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:33:27,452 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2023-11-23 20:33:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2023-11-23 20:33:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2023-11-23 20:33:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2023-11-23 20:33:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2023-11-23 20:33:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2023-11-23 20:33:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 20:33:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 20:33:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2023-11-23 20:33:27,454 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2023-11-23 20:33:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:27,843 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:27,846 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:28,445 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:33:30,181 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:30,403 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:30,404 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:33:30,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:30 BoogieIcfgContainer [2023-11-23 20:33:30,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:30,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:30,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:30,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:30,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:25" (1/3) ... [2023-11-23 20:33:30,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e98105c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:30, skipping insertion in model container [2023-11-23 20:33:30,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:27" (2/3) ... [2023-11-23 20:33:30,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e98105c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:30, skipping insertion in model container [2023-11-23 20:33:30,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:30" (3/3) ... [2023-11-23 20:33:30,419 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2023-11-23 20:33:30,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:30,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 111 error locations. [2023-11-23 20:33:30,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:30,553 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;@6525ba0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:30,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2023-11-23 20:33:30,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 494 states, 271 states have (on average 1.7490774907749078) internal successors, (474), 391 states have internal predecessors, (474), 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) [2023-11-23 20:33:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:33:30,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:30,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:30,582 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)] === [2023-11-23 20:33:30,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:30,590 INFO L85 PathProgramCache]: Analyzing trace with hash -627818910, now seen corresponding path program 1 times [2023-11-23 20:33:30,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:30,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439090713] [2023-11-23 20:33:30,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:30,610 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 [2023-11-23 20:33:30,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:30,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:30,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:30,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:33:30,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:30,995 INFO L378 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 [2023-11-23 20:33:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:31,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:31,065 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:31,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439090713] [2023-11-23 20:33:31,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439090713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:31,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:31,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:31,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601623361] [2023-11-23 20:33:31,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:31,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:33:31,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:33:31,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:33:31,109 INFO L87 Difference]: Start difference. First operand has 494 states, 271 states have (on average 1.7490774907749078) internal successors, (474), 391 states have internal predecessors, (474), 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) [2023-11-23 20:33:35,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:35,584 INFO L93 Difference]: Finished difference Result 789 states and 1085 transitions. [2023-11-23 20:33:35,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:33:35,598 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 [2023-11-23 20:33:35,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:35,634 INFO L225 Difference]: With dead ends: 789 [2023-11-23 20:33:35,634 INFO L226 Difference]: Without dead ends: 776 [2023-11-23 20:33:35,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:33:35,640 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 412 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:35,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 1262 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-23 20:33:35,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-11-23 20:33:35,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 687. [2023-11-23 20:33:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 425 states have (on average 1.7435294117647058) internal successors, (741), 539 states have internal predecessors, (741), 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) [2023-11-23 20:33:35,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1017 transitions. [2023-11-23 20:33:35,792 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1017 transitions. Word has length 8 [2023-11-23 20:33:35,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:35,792 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 1017 transitions. [2023-11-23 20:33:35,793 INFO L496 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) [2023-11-23 20:33:35,793 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1017 transitions. [2023-11-23 20:33:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:33:35,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:35,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:35,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:36,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:36,000 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)] === [2023-11-23 20:33:36,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2012450774, now seen corresponding path program 1 times [2023-11-23 20:33:36,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848925453] [2023-11-23 20:33:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:36,003 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 [2023-11-23 20:33:36,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:36,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:36,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:36,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:33:36,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:36,371 INFO L378 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 [2023-11-23 20:33:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:36,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:36,531 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:36,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848925453] [2023-11-23 20:33:36,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848925453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:36,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:36,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:36,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008470292] [2023-11-23 20:33:36,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:36,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:33:36,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:36,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:33:36,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:33:36,540 INFO L87 Difference]: Start difference. First operand 687 states and 1017 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) [2023-11-23 20:33:41,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:41,912 INFO L93 Difference]: Finished difference Result 1039 states and 1587 transitions. [2023-11-23 20:33:41,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:33:41,913 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 [2023-11-23 20:33:41,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:41,925 INFO L225 Difference]: With dead ends: 1039 [2023-11-23 20:33:41,925 INFO L226 Difference]: Without dead ends: 1039 [2023-11-23 20:33:41,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:33:41,927 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 401 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:41,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1237 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-23 20:33:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2023-11-23 20:33:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 969. [2023-11-23 20:33:42,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 654 states have (on average 1.761467889908257) internal successors, (1152), 771 states have internal predecessors, (1152), 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) [2023-11-23 20:33:42,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1578 transitions. [2023-11-23 20:33:42,070 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1578 transitions. Word has length 9 [2023-11-23 20:33:42,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:42,071 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1578 transitions. [2023-11-23 20:33:42,071 INFO L496 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) [2023-11-23 20:33:42,072 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1578 transitions. [2023-11-23 20:33:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 20:33:42,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:42,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:42,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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)] Ended with exit code 0 [2023-11-23 20:33:42,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:42,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [kfreeErr0ASSERT_VIOLATIONMEMORY_FREE, kfreeErr1ASSERT_VIOLATIONMEMORY_FREE, kfreeErr2ASSERT_VIOLATIONMEMORY_FREE, tegra_rtc_set_alarmErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 107 more)] === [2023-11-23 20:33:42,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:42,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1333480086, now seen corresponding path program 1 times [2023-11-23 20:33:42,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:42,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627330822] [2023-11-23 20:33:42,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:42,281 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 [2023-11-23 20:33:42,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:42,286 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:42,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:42,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:33:42,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:42,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:42,636 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:42,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627330822] [2023-11-23 20:33:42,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627330822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:42,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:42,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:33:42,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722180125] [2023-11-23 20:33:42,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:42,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:33:42,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:42,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:33:42,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:33:42,639 INFO L87 Difference]: Start difference. First operand 969 states and 1578 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-23 20:33:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:43,338 INFO L93 Difference]: Finished difference Result 971 states and 1580 transitions. [2023-11-23 20:33:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:33:43,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 18 [2023-11-23 20:33:43,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:43,350 INFO L225 Difference]: With dead ends: 971 [2023-11-23 20:33:43,351 INFO L226 Difference]: Without dead ends: 971 [2023-11-23 20:33:43,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:33:43,352 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 4 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:43,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1084 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 20:33:43,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-11-23 20:33:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 971. [2023-11-23 20:33:43,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 656 states have (on average 1.7591463414634145) internal successors, (1154), 773 states have internal predecessors, (1154), 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) [2023-11-23 20:33:43,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1580 transitions. [2023-11-23 20:33:43,417 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1580 transitions. Word has length 18 [2023-11-23 20:33:43,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:43,418 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1580 transitions. [2023-11-23 20:33:43,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-23 20:33:43,418 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1580 transitions. [2023-11-23 20:33:43,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:33:43,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:43,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:43,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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)] Ended with exit code 0 [2023-11-23 20:33:43,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:43,626 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [kfreeErr0ASSERT_VIOLATIONMEMORY_FREE, kfreeErr1ASSERT_VIOLATIONMEMORY_FREE, kfreeErr2ASSERT_VIOLATIONMEMORY_FREE, tegra_rtc_set_alarmErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 107 more)] === [2023-11-23 20:33:43,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:43,627 INFO L85 PathProgramCache]: Analyzing trace with hash 142183002, now seen corresponding path program 1 times [2023-11-23 20:33:43,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:43,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831807173] [2023-11-23 20:33:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:43,628 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 [2023-11-23 20:33:43,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:43,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:43,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 (5)] Waiting until timeout for monitored process [2023-11-23 20:33:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:43,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:33:43,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:44,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:44,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:44,125 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:44,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831807173] [2023-11-23 20:33:44,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831807173] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:44,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1154347658] [2023-11-23 20:33:44,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:44,127 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:44,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:33:44,130 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:33:44,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-23 20:33:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:44,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:33:44,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:44,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:33:44,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:44,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1154347658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:44,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 20:33:44,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2023-11-23 20:33:44,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709633117] [2023-11-23 20:33:44,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:44,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:33:44,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:44,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:33:44,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 20:33:44,582 INFO L87 Difference]: Start difference. First operand 971 states and 1580 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-23 20:33:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:45,450 INFO L93 Difference]: Finished difference Result 1903 states and 3092 transitions. [2023-11-23 20:33:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:33:45,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 19 [2023-11-23 20:33:45,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:45,470 INFO L225 Difference]: With dead ends: 1903 [2023-11-23 20:33:45,471 INFO L226 Difference]: Without dead ends: 1903 [2023-11-23 20:33:45,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 20:33:45,472 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 573 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:45,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1084 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 20:33:45,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2023-11-23 20:33:45,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1791. [2023-11-23 20:33:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1283 states have (on average 1.759937646141855) internal successors, (2258), 1407 states have internal predecessors, (2258), 315 states have call successors, (315), 60 states have call predecessors, (315), 82 states have return successors, (515), 335 states have call predecessors, (515), 314 states have call successors, (515) [2023-11-23 20:33:45,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 3088 transitions. [2023-11-23 20:33:45,637 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 3088 transitions. Word has length 19 [2023-11-23 20:33:45,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:45,637 INFO L495 AbstractCegarLoop]: Abstraction has 1791 states and 3088 transitions. [2023-11-23 20:33:45,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-23 20:33:45,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 3088 transitions. [2023-11-23 20:33:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:33:45,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:45,645 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:45,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:45,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 (5)] Ended with exit code 0 [2023-11-23 20:33:46,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:46,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [kfreeErr0ASSERT_VIOLATIONMEMORY_FREE, kfreeErr1ASSERT_VIOLATIONMEMORY_FREE, kfreeErr2ASSERT_VIOLATIONMEMORY_FREE, tegra_rtc_set_alarmErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 107 more)] === [2023-11-23 20:33:46,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:46,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1592136857, now seen corresponding path program 1 times [2023-11-23 20:33:46,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:46,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132219422] [2023-11-23 20:33:46,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:46,057 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 [2023-11-23 20:33:46,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:46,059 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:46,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 (7)] Waiting until timeout for monitored process [2023-11-23 20:33:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:46,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:33:46,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:46,472 INFO L378 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 [2023-11-23 20:33:46,549 WARN L876 $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 [2023-11-23 20:33:46,563 INFO L378 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 [2023-11-23 20:33:46,611 INFO L378 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 [2023-11-23 20:33:46,644 INFO L378 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 [2023-11-23 20:33:46,759 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-23 20:33:46,759 INFO L378 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 [2023-11-23 20:33:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:33:46,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:46,792 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:46,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132219422] [2023-11-23 20:33:46,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132219422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:46,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:46,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:33:46,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095488187] [2023-11-23 20:33:46,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:46,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:33:46,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:46,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:33:46,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2023-11-23 20:33:46,796 INFO L87 Difference]: Start difference. First operand 1791 states and 3088 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2023-11-23 20:33:51,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:51,075 INFO L93 Difference]: Finished difference Result 2111 states and 3593 transitions. [2023-11-23 20:33:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:33:51,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) Word has length 22 [2023-11-23 20:33:51,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:51,092 INFO L225 Difference]: With dead ends: 2111 [2023-11-23 20:33:51,092 INFO L226 Difference]: Without dead ends: 2111 [2023-11-23 20:33:51,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=20, Unknown=1, NotChecked=8, Total=42 [2023-11-23 20:33:51,093 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 402 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 2350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1087 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:51,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1393 Invalid, 2350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1123 Invalid, 0 Unknown, 1087 Unchecked, 4.1s Time] [2023-11-23 20:33:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2023-11-23 20:33:51,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 1790. [2023-11-23 20:33:51,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1790 states, 1283 states have (on average 1.7591582229150429) internal successors, (2257), 1406 states have internal predecessors, (2257), 315 states have call successors, (315), 60 states have call predecessors, (315), 82 states have return successors, (515), 335 states have call predecessors, (515), 314 states have call successors, (515) [2023-11-23 20:33:51,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 3087 transitions. [2023-11-23 20:33:51,189 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 3087 transitions. Word has length 22 [2023-11-23 20:33:51,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:51,189 INFO L495 AbstractCegarLoop]: Abstraction has 1790 states and 3087 transitions. [2023-11-23 20:33:51,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2023-11-23 20:33:51,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 3087 transitions. [2023-11-23 20:33:51,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 20:33:51,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:51,193 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] [2023-11-23 20:33:51,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 (7)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:51,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:51,398 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [kfreeErr0ASSERT_VIOLATIONMEMORY_FREE, kfreeErr1ASSERT_VIOLATIONMEMORY_FREE, kfreeErr2ASSERT_VIOLATIONMEMORY_FREE, tegra_rtc_set_alarmErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 107 more)] === [2023-11-23 20:33:51,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:51,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2111602815, now seen corresponding path program 1 times [2023-11-23 20:33:51,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:51,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501613919] [2023-11-23 20:33:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:51,400 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 [2023-11-23 20:33:51,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:51,401 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:51,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 (8)] Waiting until timeout for monitored process [2023-11-23 20:33:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:51,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 20:33:51,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:51,807 INFO L378 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 [2023-11-23 20:33:51,820 INFO L378 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 [2023-11-23 20:33:51,960 WARN L876 $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_#length| (store |c_old(#length)| |ldv_zalloc_#t~malloc15#1.base| (select |c_#length| |ldv_zalloc_#t~malloc15#1.base|))))) is different from true [2023-11-23 20:33:51,968 INFO L378 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 8 treesize of output 1 [2023-11-23 20:33:51,991 INFO L378 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 8 treesize of output 1 [2023-11-23 20:33:52,030 INFO L378 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 8 treesize of output 1 [2023-11-23 20:33:52,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:52,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-23 20:33:52,171 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-23 20:33:52,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-23 20:33:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:33:52,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:52,254 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:52,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501613919] [2023-11-23 20:33:52,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501613919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:52,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:52,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 20:33:52,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117872672] [2023-11-23 20:33:52,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:52,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 20:33:52,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:52,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 20:33:52,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2023-11-23 20:33:52,257 INFO L87 Difference]: Start difference. First operand 1790 states and 3087 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-11-23 20:33:57,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:57,958 INFO L93 Difference]: Finished difference Result 2684 states and 4665 transitions. [2023-11-23 20:33:57,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 20:33:57,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) Word has length 23 [2023-11-23 20:33:57,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:57,981 INFO L225 Difference]: With dead ends: 2684 [2023-11-23 20:33:57,982 INFO L226 Difference]: Without dead ends: 2684 [2023-11-23 20:33:57,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=37, Unknown=1, NotChecked=12, Total=72 [2023-11-23 20:33:57,983 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 790 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 2899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1362 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:57,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1423 Invalid, 2899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1336 Invalid, 0 Unknown, 1362 Unchecked, 5.5s Time] [2023-11-23 20:33:57,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2023-11-23 20:33:58,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2058. [2023-11-23 20:33:58,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2058 states, 1503 states have (on average 1.7604790419161678) internal successors, (2646), 1627 states have internal predecessors, (2646), 364 states have call successors, (364), 60 states have call predecessors, (364), 82 states have return successors, (605), 384 states have call predecessors, (605), 363 states have call successors, (605) [2023-11-23 20:33:58,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 3615 transitions. [2023-11-23 20:33:58,096 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 3615 transitions. Word has length 23 [2023-11-23 20:33:58,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:58,096 INFO L495 AbstractCegarLoop]: Abstraction has 2058 states and 3615 transitions. [2023-11-23 20:33:58,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-11-23 20:33:58,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 3615 transitions. [2023-11-23 20:33:58,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:33:58,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:58,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:58,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 (8)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:58,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:33:58,317 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [kfreeErr0ASSERT_VIOLATIONMEMORY_FREE, kfreeErr1ASSERT_VIOLATIONMEMORY_FREE, kfreeErr2ASSERT_VIOLATIONMEMORY_FREE, tegra_rtc_set_alarmErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 107 more)] === [2023-11-23 20:33:58,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash -38345, now seen corresponding path program 1 times [2023-11-23 20:33:58,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:58,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313375065] [2023-11-23 20:33:58,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:58,319 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 [2023-11-23 20:33:58,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:58,320 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:33:58,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/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 (9)] Waiting until timeout for monitored process [2023-11-23 20:33:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:58,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:33:58,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:58,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:58,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:58,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:58,699 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:58,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313375065] [2023-11-23 20:33:58,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313375065] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:58,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [944891832] [2023-11-23 20:33:58,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:58,700 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:58,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:33:58,702 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:33:58,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-23 20:33:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:59,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:33:59,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:59,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:59,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:59,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [944891832] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:59,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089136636] [2023-11-23 20:33:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:59,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:59,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:59,299 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:59,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a452c8-e88e-4aeb-a253-2c15d382379f/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 20:33:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:59,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:33:59,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:59,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:59,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:59,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089136636] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:59,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:33:59,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2023-11-23 20:33:59,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32838678] [2023-11-23 20:33:59,592 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:33:59,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 20:33:59,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:59,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 20:33:59,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:33:59,594 INFO L87 Difference]: Start difference. First operand 2058 states and 3615 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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)