./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:16:25,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:16:25,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:16:25,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:16:25,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:16:25,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:16:25,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:16:25,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:16:25,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:16:25,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:16:25,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:16:25,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:16:25,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:16:25,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:16:25,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:16:25,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:16:25,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:16:25,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:16:25,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:16:25,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:16:25,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:16:25,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:16:25,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:16:25,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:16:25,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:16:25,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:16:25,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:16:25,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:16:25,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:16:25,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:16:25,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:16:25,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:16:25,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:16:25,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:16:25,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:16:25,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:16:25,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:16:25,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:16:25,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:16:25,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:16:25,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:16:25,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:16:25,153 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:16:25,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:16:25,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:16:25,155 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:16:25,155 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:16:25,155 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:16:25,156 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:16:25,156 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:16:25,156 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:16:25,156 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:16:25,156 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:16:25,157 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:16:25,157 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:16:25,157 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:16:25,157 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:16:25,158 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:16:25,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:16:25,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:16:25,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:16:25,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:16:25,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:16:25,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:16:25,160 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:16:25,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:16:25,160 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:16:25,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:16:25,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:16:25,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:16:25,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:25,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:16:25,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:16:25,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:16:25,162 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:16:25,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:16:25,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:16:25,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:16:25,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:16:25,163 INFO L138 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_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a [2021-11-19 14:16:25,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:16:25,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:16:25,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:16:25,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:16:25,448 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:16:25,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 14:16:25,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data/c7f4766a4/1f9671e411df4b29bc61f5f4d7ccd149/FLAGdab2bb160 [2021-11-19 14:16:26,524 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:16:26,526 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 14:16:26,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data/c7f4766a4/1f9671e411df4b29bc61f5f4d7ccd149/FLAGdab2bb160 [2021-11-19 14:16:26,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data/c7f4766a4/1f9671e411df4b29bc61f5f4d7ccd149 [2021-11-19 14:16:26,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:16:26,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:16:26,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:26,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:16:26,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:16:26,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:26" (1/1) ... [2021-11-19 14:16:26,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a36f80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:26, skipping insertion in model container [2021-11-19 14:16:26,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:26" (1/1) ... [2021-11-19 14:16:26,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:16:27,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:29,027 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:29,035 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:29,179 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:29,180 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:29,233 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:29,234 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:16:30,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-19 14:16:30,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-19 14:16:30,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-19 14:16:30,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-19 14:16:30,312 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:30,381 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:16:30,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35f96008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:30, skipping insertion in model container [2021-11-19 14:16:30,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:30,382 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:16:30,385 INFO L158 Benchmark]: Toolchain (without parser) took 3475.06ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 79.1MB in the beginning and 105.9MB in the end (delta: -26.8MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2021-11-19 14:16:30,386 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:16:30,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3469.42ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 78.9MB in the beginning and 105.9MB in the end (delta: -27.0MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2021-11-19 14:16:30,391 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3469.42ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 78.9MB in the beginning and 105.9MB in the end (delta: -27.0MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7445]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:16:32,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:16:32,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:16:32,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:16:32,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:16:32,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:16:32,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:16:32,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:16:32,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:16:32,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:16:32,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:16:32,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:16:32,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:16:32,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:16:32,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:16:32,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:16:32,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:16:32,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:16:32,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:16:32,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:16:32,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:16:32,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:16:32,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:16:32,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:16:32,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:16:32,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:16:32,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:16:32,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:16:32,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:16:32,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:16:32,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:16:32,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:16:32,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:16:32,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:16:32,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:16:32,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:16:32,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:16:32,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:16:32,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:16:32,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:16:32,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:16:32,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:16:32,891 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:16:32,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:16:32,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:16:32,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:16:32,900 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:16:32,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:16:32,900 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:16:32,901 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:16:32,901 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:16:32,901 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:16:32,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:16:32,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:16:32,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:16:32,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:16:32,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:16:32,905 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:16:32,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:16:32,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:16:32,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:16:32,906 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:16:32,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:16:32,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:16:32,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:16:32,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:16:32,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:32,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:16:32,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:16:32,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:16:32,909 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:16:32,909 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:16:32,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:16:32,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:16:32,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:16:32,910 INFO L138 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_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a [2021-11-19 14:16:33,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:16:33,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:16:33,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:16:33,318 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:16:33,319 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:16:33,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 14:16:33,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data/3d077c942/b85735a893024c56b263ac93cfe9b553/FLAG0e07febb7 [2021-11-19 14:16:34,437 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:16:34,438 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 14:16:34,490 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data/3d077c942/b85735a893024c56b263ac93cfe9b553/FLAG0e07febb7 [2021-11-19 14:16:34,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/data/3d077c942/b85735a893024c56b263ac93cfe9b553 [2021-11-19 14:16:34,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:16:34,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:16:34,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:34,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:16:34,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:16:34,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:34" (1/1) ... [2021-11-19 14:16:34,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1d34be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:34, skipping insertion in model container [2021-11-19 14:16:34,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:16:34" (1/1) ... [2021-11-19 14:16:34,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:16:35,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:38,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-19 14:16:38,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-19 14:16:38,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-19 14:16:38,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-19 14:16:38,480 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:38,547 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:16:38,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:16:39,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-19 14:16:39,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-19 14:16:39,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-19 14:16:39,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-19 14:16:39,038 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:39,073 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:16:39,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-19 14:16:39,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-19 14:16:39,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-19 14:16:39,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-19 14:16:39,463 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:16:39,702 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:16:39,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39 WrapperNode [2021-11-19 14:16:39,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:16:39,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:16:39,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:16:39,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:16:39,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:39,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:40,112 INFO L137 Inliner]: procedures = 461, calls = 2093, calls flagged for inlining = 218, calls inlined = 201, statements flattened = 4790 [2021-11-19 14:16:40,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:16:40,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:16:40,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:16:40,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:16:40,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:40,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:40,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:40,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:40,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:40,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:40,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:40,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:16:40,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:16:40,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:16:40,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:16:40,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (1/1) ... [2021-11-19 14:16:40,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:16:40,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:16:40,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:16:40,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:16:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-19 14:16:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2021-11-19 14:16:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2021-11-19 14:16:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-19 14:16:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-19 14:16:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:16:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:16:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:16:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:16:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2021-11-19 14:16:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2021-11-19 14:16:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2021-11-19 14:16:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2021-11-19 14:16:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2021-11-19 14:16:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2021-11-19 14:16:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:16:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:16:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2021-11-19 14:16:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2021-11-19 14:16:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:16:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:16:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 14:16:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 14:16:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:16:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:16:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2021-11-19 14:16:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2021-11-19 14:16:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:16:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:16:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2021-11-19 14:16:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2021-11-19 14:16:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-19 14:16:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-19 14:16:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2021-11-19 14:16:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2021-11-19 14:16:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2021-11-19 14:16:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2021-11-19 14:16:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:16:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:16:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-19 14:16:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-19 14:16:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:16:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:16:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:16:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:16:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 14:16:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 14:16:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-19 14:16:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-19 14:16:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:16:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:16:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:16:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:16:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:16:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 14:16:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 14:16:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-19 14:16:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-19 14:16:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:16:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:16:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:16:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:16:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:16:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:16:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:16:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:16:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:16:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 14:16:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 14:16:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:16:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:16:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:16:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:16:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:16:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:16:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:16:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:16:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2021-11-19 14:16:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2021-11-19 14:16:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2021-11-19 14:16:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2021-11-19 14:16:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:16:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:16:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:16:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:16:40,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:16:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:16:40,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:16:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2021-11-19 14:16:40,596 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2021-11-19 14:16:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-19 14:16:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-19 14:16:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:16:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2021-11-19 14:16:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2021-11-19 14:16:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:16:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:16:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:16:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:16:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:16:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:16:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:16:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:16:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:16:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:16:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 14:16:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 14:16:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 14:16:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 14:16:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:16:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:16:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:16:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:16:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:16:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:16:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:16:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:16:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:16:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2021-11-19 14:16:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2021-11-19 14:16:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:16:40,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:16:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2021-11-19 14:16:40,607 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2021-11-19 14:16:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:16:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-19 14:16:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-19 14:16:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:16:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:16:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:16:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2021-11-19 14:16:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2021-11-19 14:16:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:16:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:16:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:16:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:16:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:16:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:16:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 14:16:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 14:16:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:16:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:16:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-19 14:16:40,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-19 14:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:16:40,612 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:16:40,612 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-19 14:16:40,612 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-19 14:16:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 14:16:40,612 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 14:16:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-19 14:16:40,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-19 14:16:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:16:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:16:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 14:16:40,613 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 14:16:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:16:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:16:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:16:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:16:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:16:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:16:40,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:16:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2021-11-19 14:16:40,614 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2021-11-19 14:16:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:16:40,615 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:16:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:16:40,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:16:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 14:16:40,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 14:16:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2021-11-19 14:16:40,616 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2021-11-19 14:16:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2021-11-19 14:16:40,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2021-11-19 14:16:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2021-11-19 14:16:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2021-11-19 14:16:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 14:16:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 14:16:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:16:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:16:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2021-11-19 14:16:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2021-11-19 14:16:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:16:40,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:16:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:16:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:16:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:16:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:16:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:16:40,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:16:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 14:16:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 14:16:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2021-11-19 14:16:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2021-11-19 14:16:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:16:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:16:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-19 14:16:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-19 14:16:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:16:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:16:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-19 14:16:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-19 14:16:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:16:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:16:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-19 14:16:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-19 14:16:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2021-11-19 14:16:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2021-11-19 14:16:41,664 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:16:41,670 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:16:45,897 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:17:09,064 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:17:09,950 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:17:09,971 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:17:09,972 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:17:09,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:09 BoogieIcfgContainer [2021-11-19 14:17:09,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:17:09,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:17:09,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:17:09,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:17:09,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:16:34" (1/3) ... [2021-11-19 14:17:09,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e53fdb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:09, skipping insertion in model container [2021-11-19 14:17:09,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:16:39" (2/3) ... [2021-11-19 14:17:09,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e53fdb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:09, skipping insertion in model container [2021-11-19 14:17:09,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:09" (3/3) ... [2021-11-19 14:17:09,993 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 14:17:09,999 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:17:09,999 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:17:10,060 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:17:10,066 INFO L339 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:17:10,067 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:17:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 1996 states, 1342 states have (on average 1.3002980625931446) internal successors, (1745), 1382 states have internal predecessors, (1745), 562 states have call successors, (562), 90 states have call predecessors, (562), 89 states have return successors, (556), 542 states have call predecessors, (556), 556 states have call successors, (556) [2021-11-19 14:17:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-19 14:17:10,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:10,143 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:10,144 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:17:10,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:10,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1553828359, now seen corresponding path program 1 times [2021-11-19 14:17:10,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:10,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160973536] [2021-11-19 14:17:10,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:10,170 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:10,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:10,173 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:10,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:17:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:11,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:17:11,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:11,811 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:17:11,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 14:17:12,230 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:12,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160973536] [2021-11-19 14:17:12,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160973536] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:12,231 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:12,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:17:12,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071404299] [2021-11-19 14:17:12,235 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:12,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:17:12,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:12,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:17:12,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:12,287 INFO L87 Difference]: Start difference. First operand has 1996 states, 1342 states have (on average 1.3002980625931446) internal successors, (1745), 1382 states have internal predecessors, (1745), 562 states have call successors, (562), 90 states have call predecessors, (562), 89 states have return successors, (556), 542 states have call predecessors, (556), 556 states have call successors, (556) Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 14:17:14,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:23,631 INFO L93 Difference]: Finished difference Result 7748 states and 11340 transitions. [2021-11-19 14:17:23,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:23,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 116 [2021-11-19 14:17:23,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:23,728 INFO L225 Difference]: With dead ends: 7748 [2021-11-19 14:17:23,728 INFO L226 Difference]: Without dead ends: 5756 [2021-11-19 14:17:23,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:23,766 INFO L933 BasicCegarLoop]: 3921 mSDtfsCounter, 7148 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1061 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7148 SdHoareTripleChecker+Valid, 8327 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1061 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:23,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7148 Valid, 8327 Invalid, 2204 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1061 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2021-11-19 14:17:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2021-11-19 14:17:24,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5729. [2021-11-19 14:17:24,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5729 states, 3880 states have (on average 1.2945876288659794) internal successors, (5023), 3996 states have internal predecessors, (5023), 1586 states have call successors, (1586), 261 states have call predecessors, (1586), 260 states have return successors, (1582), 1540 states have call predecessors, (1582), 1582 states have call successors, (1582) [2021-11-19 14:17:24,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8191 transitions. [2021-11-19 14:17:24,388 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8191 transitions. Word has length 116 [2021-11-19 14:17:24,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:24,390 INFO L470 AbstractCegarLoop]: Abstraction has 5729 states and 8191 transitions. [2021-11-19 14:17:24,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 14:17:24,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8191 transitions. [2021-11-19 14:17:24,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-19 14:17:24,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:24,399 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:24,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:24,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:24,678 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:17:24,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:24,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1683937794, now seen corresponding path program 1 times [2021-11-19 14:17:24,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:24,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187547145] [2021-11-19 14:17:24,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:24,682 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:24,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:24,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:24,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:17:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:25,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:17:25,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:26,219 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:17:26,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 14:17:26,562 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:26,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187547145] [2021-11-19 14:17:26,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187547145] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:26,563 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:26,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:17:26,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742366292] [2021-11-19 14:17:26,563 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:26,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:17:26,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:26,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:17:26,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:26,568 INFO L87 Difference]: Start difference. First operand 5729 states and 8191 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 14:17:28,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:33,925 INFO L93 Difference]: Finished difference Result 20288 states and 28816 transitions. [2021-11-19 14:17:33,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:33,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 117 [2021-11-19 14:17:33,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:34,197 INFO L225 Difference]: With dead ends: 20288 [2021-11-19 14:17:34,197 INFO L226 Difference]: Without dead ends: 14580 [2021-11-19 14:17:34,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:34,242 INFO L933 BasicCegarLoop]: 3994 mSDtfsCounter, 4765 mSDsluCounter, 5703 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4765 SdHoareTripleChecker+Valid, 9697 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:34,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4765 Valid, 9697 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 812 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-19 14:17:34,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14580 states. [2021-11-19 14:17:35,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14580 to 14513. [2021-11-19 14:17:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14513 states, 9955 states have (on average 1.2924158714213962) internal successors, (12866), 10266 states have internal predecessors, (12866), 3834 states have call successors, (3834), 752 states have call predecessors, (3834), 721 states have return successors, (3860), 3653 states have call predecessors, (3860), 3830 states have call successors, (3860) [2021-11-19 14:17:35,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14513 states to 14513 states and 20560 transitions. [2021-11-19 14:17:35,378 INFO L78 Accepts]: Start accepts. Automaton has 14513 states and 20560 transitions. Word has length 117 [2021-11-19 14:17:35,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:35,379 INFO L470 AbstractCegarLoop]: Abstraction has 14513 states and 20560 transitions. [2021-11-19 14:17:35,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 14:17:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 14513 states and 20560 transitions. [2021-11-19 14:17:35,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-19 14:17:35,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:35,393 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:35,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:35,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:35,607 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:17:35,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:35,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1773962956, now seen corresponding path program 1 times [2021-11-19 14:17:35,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:35,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752998420] [2021-11-19 14:17:35,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:35,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:35,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:35,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:35,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:17:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:36,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:17:36,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:17:37,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 14:17:37,442 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:37,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752998420] [2021-11-19 14:17:37,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752998420] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:37,443 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:37,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:17:37,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290143719] [2021-11-19 14:17:37,443 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:37,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:17:37,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:37,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:17:37,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:17:37,445 INFO L87 Difference]: Start difference. First operand 14513 states and 20560 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-19 14:17:39,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:41,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:41,061 INFO L93 Difference]: Finished difference Result 41253 states and 58457 transitions. [2021-11-19 14:17:41,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:17:41,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2021-11-19 14:17:41,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:41,288 INFO L225 Difference]: With dead ends: 41253 [2021-11-19 14:17:41,288 INFO L226 Difference]: Without dead ends: 26761 [2021-11-19 14:17:41,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:17:41,403 INFO L933 BasicCegarLoop]: 3394 mSDtfsCounter, 2462 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2462 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:41,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2462 Valid, 6133 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:17:41,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26761 states. [2021-11-19 14:17:42,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26761 to 26723. [2021-11-19 14:17:42,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26723 states, 18277 states have (on average 1.2950155933687149) internal successors, (23669), 18867 states have internal predecessors, (23669), 7050 states have call successors, (7050), 1457 states have call predecessors, (7050), 1393 states have return successors, (7115), 6686 states have call predecessors, (7115), 7046 states have call successors, (7115) [2021-11-19 14:17:43,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26723 states to 26723 states and 37834 transitions. [2021-11-19 14:17:43,083 INFO L78 Accepts]: Start accepts. Automaton has 26723 states and 37834 transitions. Word has length 121 [2021-11-19 14:17:43,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:43,084 INFO L470 AbstractCegarLoop]: Abstraction has 26723 states and 37834 transitions. [2021-11-19 14:17:43,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-19 14:17:43,085 INFO L276 IsEmpty]: Start isEmpty. Operand 26723 states and 37834 transitions. [2021-11-19 14:17:43,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 14:17:43,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:43,089 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:43,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:43,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:43,303 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:17:43,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:43,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1848069376, now seen corresponding path program 1 times [2021-11-19 14:17:43,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:43,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431938415] [2021-11-19 14:17:43,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:43,305 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:43,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:43,306 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:43,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:17:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:44,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:17:44,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:17:44,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 14:17:45,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:45,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431938415] [2021-11-19 14:17:45,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431938415] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:45,158 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:45,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:17:45,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820960984] [2021-11-19 14:17:45,158 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:45,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:17:45,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:17:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:45,160 INFO L87 Difference]: Start difference. First operand 26723 states and 37834 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 14:17:47,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:55,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:55,077 INFO L93 Difference]: Finished difference Result 69598 states and 98112 transitions. [2021-11-19 14:17:55,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:55,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 126 [2021-11-19 14:17:55,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:55,338 INFO L225 Difference]: With dead ends: 69598 [2021-11-19 14:17:55,338 INFO L226 Difference]: Without dead ends: 42896 [2021-11-19 14:17:55,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:55,471 INFO L933 BasicCegarLoop]: 4119 mSDtfsCounter, 4832 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4832 SdHoareTripleChecker+Valid, 8673 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:55,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4832 Valid, 8673 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1183 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-19 14:17:55,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42896 states. [2021-11-19 14:17:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42896 to 42824. [2021-11-19 14:17:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42824 states, 29057 states have (on average 1.2811026602883986) internal successors, (37225), 29938 states have internal predecessors, (37225), 11349 states have call successors, (11349), 2532 states have call predecessors, (11349), 2415 states have return successors, (11391), 10825 states have call predecessors, (11391), 11345 states have call successors, (11391) [2021-11-19 14:17:58,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42824 states to 42824 states and 59965 transitions. [2021-11-19 14:17:58,294 INFO L78 Accepts]: Start accepts. Automaton has 42824 states and 59965 transitions. Word has length 126 [2021-11-19 14:17:58,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:58,296 INFO L470 AbstractCegarLoop]: Abstraction has 42824 states and 59965 transitions. [2021-11-19 14:17:58,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 14:17:58,297 INFO L276 IsEmpty]: Start isEmpty. Operand 42824 states and 59965 transitions. [2021-11-19 14:17:58,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-19 14:17:58,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:58,300 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:58,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:58,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:58,515 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:17:58,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1260499852, now seen corresponding path program 1 times [2021-11-19 14:17:58,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:58,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901726269] [2021-11-19 14:17:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:58,518 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:58,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:58,520 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:58,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:17:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:59,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:17:59,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:00,003 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:18:00,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:00,361 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 14:18:00,361 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:00,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901726269] [2021-11-19 14:18:00,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901726269] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:18:00,361 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:18:00,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:18:00,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273082457] [2021-11-19 14:18:00,362 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:00,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:18:00,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:00,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:18:00,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:18:00,364 INFO L87 Difference]: Start difference. First operand 42824 states and 59965 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:18:02,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:18:10,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:10,506 INFO L93 Difference]: Finished difference Result 146054 states and 204778 transitions. [2021-11-19 14:18:10,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:18:10,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 128 [2021-11-19 14:18:10,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:11,689 INFO L225 Difference]: With dead ends: 146054 [2021-11-19 14:18:11,690 INFO L226 Difference]: Without dead ends: 103251 [2021-11-19 14:18:11,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:18:11,909 INFO L933 BasicCegarLoop]: 3873 mSDtfsCounter, 5024 mSDsluCounter, 6502 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5024 SdHoareTripleChecker+Valid, 10375 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:11,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5024 Valid, 10375 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1044 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-19 14:18:12,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103251 states. [2021-11-19 14:18:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103251 to 103009. [2021-11-19 14:18:17,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103009 states, 68921 states have (on average 1.274125447976669) internal successors, (87814), 71270 states have internal predecessors, (87814), 28021 states have call successors, (28021), 6401 states have call predecessors, (28021), 6064 states have return successors, (28555), 26491 states have call predecessors, (28555), 28017 states have call successors, (28555) [2021-11-19 14:18:18,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103009 states to 103009 states and 144390 transitions. [2021-11-19 14:18:18,581 INFO L78 Accepts]: Start accepts. Automaton has 103009 states and 144390 transitions. Word has length 128 [2021-11-19 14:18:18,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:18,582 INFO L470 AbstractCegarLoop]: Abstraction has 103009 states and 144390 transitions. [2021-11-19 14:18:18,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:18:18,584 INFO L276 IsEmpty]: Start isEmpty. Operand 103009 states and 144390 transitions. [2021-11-19 14:18:18,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-19 14:18:18,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:18,587 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:18:18,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:18,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:18,803 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:18:18,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:18,803 INFO L85 PathProgramCache]: Analyzing trace with hash -2010006806, now seen corresponding path program 1 times [2021-11-19 14:18:18,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:18,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020696757] [2021-11-19 14:18:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:18,805 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:18,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:18,807 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:18,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad95bd7-e05d-4173-beee-eeca32279aae/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:18:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:19,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:18:19,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:20,176 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 14:18:20,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-11-19 14:18:20,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:20,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020696757] [2021-11-19 14:18:20,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020696757] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:18:20,527 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:18:20,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:18:20,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109837353] [2021-11-19 14:18:20,528 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:20,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:18:20,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:20,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:18:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:18:20,529 INFO L87 Difference]: Start difference. First operand 103009 states and 144390 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 14:18:22,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:18:39,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:39,385 INFO L93 Difference]: Finished difference Result 407391 states and 571268 transitions. [2021-11-19 14:18:39,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:18:39,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 140 [2021-11-19 14:18:39,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:41,560 INFO L225 Difference]: With dead ends: 407391 [2021-11-19 14:18:41,560 INFO L226 Difference]: Without dead ends: 304403 [2021-11-19 14:18:42,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:18:42,048 INFO L933 BasicCegarLoop]: 4248 mSDtfsCounter, 5552 mSDsluCounter, 6574 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5552 SdHoareTripleChecker+Valid, 10822 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:42,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5552 Valid, 10822 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1108 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-19 14:18:42,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304403 states.