./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/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 bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:47:16,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:47:16,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:47:16,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:47:16,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:47:16,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:47:16,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:47:16,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:47:16,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:47:16,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:47:16,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:47:16,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:47:16,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:47:16,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:47:16,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:47:16,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:47:16,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:47:16,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:47:16,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:47:16,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:47:16,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:47:16,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:47:16,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:47:16,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:47:16,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:47:16,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:47:16,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:47:16,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:47:16,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:47:16,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:47:16,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:47:16,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:47:16,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:47:16,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:47:16,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:47:16,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:47:16,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:47:16,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:47:16,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:47:16,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:47:16,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:47:16,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:47:16,205 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:47:16,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:47:16,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:47:16,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:47:16,211 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:47:16,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:47:16,217 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:47:16,217 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:47:16,218 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:47:16,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:47:16,219 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:47:16,219 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:47:16,220 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:47:16,220 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:47:16,220 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:47:16,220 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:47:16,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:47:16,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:47:16,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:47:16,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:47:16,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:47:16,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:47:16,222 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:47:16,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:47:16,223 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:47:16,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:47:16,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:47:16,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:47:16,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:16,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:47:16,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:47:16,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:47:16,224 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:47:16,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:47:16,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:47:16,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:47:16,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:47:16,225 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc [2021-11-19 14:47:16,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:47:16,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:47:16,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:47:16,507 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:47:16,508 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:47:16,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-19 14:47:16,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data/6ee1c58bc/a5f380718c634bdd967b333baeceac42/FLAG969227810 [2021-11-19 14:47:17,539 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:47:17,540 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-19 14:47:17,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data/6ee1c58bc/a5f380718c634bdd967b333baeceac42/FLAG969227810 [2021-11-19 14:47:17,918 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data/6ee1c58bc/a5f380718c634bdd967b333baeceac42 [2021-11-19 14:47:17,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:47:17,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:47:17,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:17,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:47:17,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:47:17,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:17" (1/1) ... [2021-11-19 14:47:17,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3294217a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:17, skipping insertion in model container [2021-11-19 14:47:17,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:17" (1/1) ... [2021-11-19 14:47:17,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:47:18,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:47:20,905 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 14:47:21,012 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 14:47:21,013 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 14:47:22,532 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2021-11-19 14:47:22,535 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2021-11-19 14:47:22,536 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2021-11-19 14:47:22,537 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2021-11-19 14:47:22,588 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:22,627 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 14:47:22,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2892e7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:22, skipping insertion in model container [2021-11-19 14:47:22,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:22,629 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:47:22,631 INFO L158 Benchmark]: Toolchain (without parser) took 4707.98ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 88.7MB in the beginning and 69.5MB in the end (delta: 19.2MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2021-11-19 14:47:22,632 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:47:22,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4704.69ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 88.3MB in the beginning and 69.5MB in the end (delta: 18.8MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2021-11-19 14:47:22,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4704.69ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 88.3MB in the beginning and 69.5MB in the end (delta: 18.8MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6641]: 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/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 bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:47:25,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:47:25,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:47:25,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:47:25,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:47:25,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:47:25,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:47:25,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:47:25,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:47:25,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:47:25,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:47:25,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:47:25,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:47:25,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:47:25,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:47:25,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:47:25,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:47:25,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:47:25,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:47:25,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:47:25,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:47:25,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:47:25,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:47:25,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:47:25,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:47:25,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:47:25,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:47:25,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:47:25,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:47:25,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:47:25,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:47:25,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:47:25,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:47:25,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:47:25,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:47:25,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:47:25,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:47:25,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:47:25,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:47:25,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:47:25,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:47:25,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:47:25,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:47:25,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:47:25,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:47:25,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:47:25,303 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:47:25,303 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:47:25,303 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:47:25,304 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:47:25,304 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:47:25,304 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:47:25,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:47:25,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:47:25,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:47:25,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:47:25,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:47:25,308 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:47:25,308 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:47:25,308 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:47:25,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:47:25,309 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:47:25,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:47:25,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:47:25,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:47:25,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:47:25,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:25,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:47:25,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:47:25,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:47:25,311 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:47:25,311 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:47:25,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:47:25,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:47:25,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:47:25,312 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc [2021-11-19 14:47:25,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:47:25,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:47:25,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:47:25,805 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:47:25,806 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:47:25,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-19 14:47:25,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data/da43a78c4/1c3d6365e790403e831efb915718369f/FLAGe3a110bb2 [2021-11-19 14:47:27,115 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:47:27,116 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-19 14:47:27,160 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data/da43a78c4/1c3d6365e790403e831efb915718369f/FLAGe3a110bb2 [2021-11-19 14:47:27,359 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/data/da43a78c4/1c3d6365e790403e831efb915718369f [2021-11-19 14:47:27,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:47:27,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:47:27,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:27,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:47:27,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:47:27,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:27" (1/1) ... [2021-11-19 14:47:27,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326ff659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:27, skipping insertion in model container [2021-11-19 14:47:27,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:27" (1/1) ... [2021-11-19 14:47:27,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:47:27,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:47:32,222 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2021-11-19 14:47:32,226 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2021-11-19 14:47:32,227 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2021-11-19 14:47:32,228 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2021-11-19 14:47:32,256 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:32,372 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:47:32,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:47:33,111 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2021-11-19 14:47:33,111 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2021-11-19 14:47:33,112 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2021-11-19 14:47:33,112 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2021-11-19 14:47:33,121 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:33,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:47:33,721 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2021-11-19 14:47:33,722 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2021-11-19 14:47:33,724 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2021-11-19 14:47:33,725 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_0769e4b0-2f49-472e-b3cc-a649b3a3f404/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2021-11-19 14:47:33,740 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:47:34,188 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:47:34,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34 WrapperNode [2021-11-19 14:47:34,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:47:34,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:47:34,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:47:34,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:47:34,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:34,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:34,671 INFO L137 Inliner]: procedures = 573, calls = 2867, calls flagged for inlining = 295, calls inlined = 261, statements flattened = 7191 [2021-11-19 14:47:34,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:47:34,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:47:34,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:47:34,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:47:34,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:34,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:34,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:34,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:35,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:35,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:35,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:35,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:47:35,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:47:35,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:47:35,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:47:35,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (1/1) ... [2021-11-19 14:47:35,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:47:35,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:35,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:47:35,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:47:35,367 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-19 14:47:35,367 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-19 14:47:35,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:47:35,367 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:47:35,368 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 14:47:35,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 14:47:35,368 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:47:35,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:47:35,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:47:35,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:47:35,369 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 14:47:35,369 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 14:47:35,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:47:35,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:47:35,369 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:47:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:47:35,370 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:47:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:47:35,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2021-11-19 14:47:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2021-11-19 14:47:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2021-11-19 14:47:35,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2021-11-19 14:47:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:47:35,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:47:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:47:35,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:47:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:47:35,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:47:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:47:35,372 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:47:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:47:35,373 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:47:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:47:35,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:47:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:47:35,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:47:35,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:47:35,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:47:35,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:47:35,374 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2021-11-19 14:47:35,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2021-11-19 14:47:35,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:47:35,375 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:47:35,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:47:35,375 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:47:35,375 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:47:35,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~X~C_INT~TO~~u16~0 [2021-11-19 14:47:35,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~X~C_INT~TO~~u16~0 [2021-11-19 14:47:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-19 14:47:35,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-11-19 14:47:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:47:35,376 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:47:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-19 14:47:35,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-19 14:47:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:47:35,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:47:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2021-11-19 14:47:35,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2021-11-19 14:47:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:47:35,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:47:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:47:35,378 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:47:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2021-11-19 14:47:35,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2021-11-19 14:47:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:47:35,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:47:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:47:35,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:47:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:47:35,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:47:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:47:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:47:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:47:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:47:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2021-11-19 14:47:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2021-11-19 14:47:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-19 14:47:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-19 14:47:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:47:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:47:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:47:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:47:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:47:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:47:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:47:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-19 14:47:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-19 14:47:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 14:47:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 14:47:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 14:47:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 14:47:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2021-11-19 14:47:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2021-11-19 14:47:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:47:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-19 14:47:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-19 14:47:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:47:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:47:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:47:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:47:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:47:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:47:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:47:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:47:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:47:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:47:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2021-11-19 14:47:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2021-11-19 14:47:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:47:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-19 14:47:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-11-19 14:47:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 14:47:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 14:47:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2021-11-19 14:47:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2021-11-19 14:47:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:47:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:47:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-19 14:47:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-19 14:47:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:47:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:47:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:47:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:47:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:47:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:47:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2021-11-19 14:47:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2021-11-19 14:47:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:47:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:47:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:47:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2021-11-19 14:47:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2021-11-19 14:47:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-19 14:47:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-19 14:47:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:47:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:47:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:47:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:47:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:47:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:47:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:47:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:47:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:47:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:47:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:47:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:47:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2021-11-19 14:47:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2021-11-19 14:47:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:47:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:47:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2021-11-19 14:47:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2021-11-19 14:47:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2021-11-19 14:47:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2021-11-19 14:47:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-19 14:47:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:47:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:47:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2021-11-19 14:47:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2021-11-19 14:47:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2021-11-19 14:47:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2021-11-19 14:47:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:47:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:47:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:47:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:47:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-19 14:47:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-19 14:47:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:47:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:47:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:47:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:47:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-19 14:47:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-19 14:47:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2021-11-19 14:47:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2021-11-19 14:47:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2021-11-19 14:47:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2021-11-19 14:47:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2021-11-19 14:47:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2021-11-19 14:47:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:47:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:47:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2021-11-19 14:47:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2021-11-19 14:47:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:47:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:47:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:47:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:47:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-19 14:47:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-11-19 14:47:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:47:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:47:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:47:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:47:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:47:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2021-11-19 14:47:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2021-11-19 14:47:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2021-11-19 14:47:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2021-11-19 14:47:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-19 14:47:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-19 14:47:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:47:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:47:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-11-19 14:47:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-11-19 14:47:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:47:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:47:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2021-11-19 14:47:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2021-11-19 14:47:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-19 14:47:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-19 14:47:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 14:47:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 14:47:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2021-11-19 14:47:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2021-11-19 14:47:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-11-19 14:47:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-11-19 14:47:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2021-11-19 14:47:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2021-11-19 14:47:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 14:47:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 14:47:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:47:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:47:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:47:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:47:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2021-11-19 14:47:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2021-11-19 14:47:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:47:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:47:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2021-11-19 14:47:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2021-11-19 14:47:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2021-11-19 14:47:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2021-11-19 14:47:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-19 14:47:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-19 14:47:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:47:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:47:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2021-11-19 14:47:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2021-11-19 14:47:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:47:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:47:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:47:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:47:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:47:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:47:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 14:47:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 14:47:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 14:47:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 14:47:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2021-11-19 14:47:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2021-11-19 14:47:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2021-11-19 14:47:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2021-11-19 14:47:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-19 14:47:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-19 14:47:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2021-11-19 14:47:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2021-11-19 14:47:35,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~X~C_INT~X~~u16~0~TO~VOID [2021-11-19 14:47:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~X~C_INT~X~~u16~0~TO~VOID [2021-11-19 14:47:35,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:47:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:47:35,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 14:47:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 14:47:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 14:47:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 14:47:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-19 14:47:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-19 14:47:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2021-11-19 14:47:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2021-11-19 14:47:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-19 14:47:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-19 14:47:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-19 14:47:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-19 14:47:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-19 14:47:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-19 14:47:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:47:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:47:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-19 14:47:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-19 14:47:36,562 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:47:36,568 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:47:37,663 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:48:48,887 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:48:49,246 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:48:49,276 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:48:49,276 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-19 14:48:49,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:49 BoogieIcfgContainer [2021-11-19 14:48:49,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:48:49,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:48:49,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:48:49,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:48:49,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:47:27" (1/3) ... [2021-11-19 14:48:49,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c782c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:48:49, skipping insertion in model container [2021-11-19 14:48:49,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:34" (2/3) ... [2021-11-19 14:48:49,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c782c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:48:49, skipping insertion in model container [2021-11-19 14:48:49,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:49" (3/3) ... [2021-11-19 14:48:49,295 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-19 14:48:49,302 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:48:49,303 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:48:49,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:48:49,386 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 14:48:49,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:48:49,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 2673 states, 1858 states have (on average 1.3003229278794401) internal successors, (2416), 1900 states have internal predecessors, (2416), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) [2021-11-19 14:48:49,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-19 14:48:49,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:49,516 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1] [2021-11-19 14:48:49,517 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 14:48:49,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:49,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1467386647, now seen corresponding path program 1 times [2021-11-19 14:48:49,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:49,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818093408] [2021-11-19 14:48:49,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:49,547 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:49,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:49,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:49,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:48:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:51,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1562 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:48:51,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:52,537 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-19 14:48:52,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-19 14:48:53,385 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:48:53,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818093408] [2021-11-19 14:48:53,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818093408] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:53,386 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:53,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:48:53,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456930042] [2021-11-19 14:48:53,390 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:53,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:48:53,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:48:53,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:48:53,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:48:53,436 INFO L87 Difference]: Start difference. First operand has 2673 states, 1858 states have (on average 1.3003229278794401) internal successors, (2416), 1900 states have internal predecessors, (2416), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:48:55,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:10,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:10,202 INFO L93 Difference]: Finished difference Result 10258 states and 14904 transitions. [2021-11-19 14:49:10,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:49:10,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 171 [2021-11-19 14:49:10,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:10,309 INFO L225 Difference]: With dead ends: 10258 [2021-11-19 14:49:10,309 INFO L226 Difference]: Without dead ends: 7595 [2021-11-19 14:49:10,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:10,351 INFO L933 BasicCegarLoop]: 4993 mSDtfsCounter, 7170 mSDsluCounter, 9278 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7170 SdHoareTripleChecker+Valid, 14271 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:10,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7170 Valid, 14271 Invalid, 1412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 1391 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2021-11-19 14:49:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7595 states. [2021-11-19 14:49:11,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7595 to 7568. [2021-11-19 14:49:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7568 states, 5280 states have (on average 1.2890151515151516) internal successors, (6806), 5392 states have internal predecessors, (6806), 1926 states have call successors, (1926), 360 states have call predecessors, (1926), 359 states have return successors, (1922), 1885 states have call predecessors, (1922), 1922 states have call successors, (1922) [2021-11-19 14:49:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7568 states to 7568 states and 10654 transitions. [2021-11-19 14:49:11,151 INFO L78 Accepts]: Start accepts. Automaton has 7568 states and 10654 transitions. Word has length 171 [2021-11-19 14:49:11,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:11,153 INFO L470 AbstractCegarLoop]: Abstraction has 7568 states and 10654 transitions. [2021-11-19 14:49:11,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:49:11,154 INFO L276 IsEmpty]: Start isEmpty. Operand 7568 states and 10654 transitions. [2021-11-19 14:49:11,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-19 14:49:11,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:11,159 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:49:11,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:11,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:11,382 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 14:49:11,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:11,383 INFO L85 PathProgramCache]: Analyzing trace with hash -361754018, now seen corresponding path program 1 times [2021-11-19 14:49:11,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:11,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127824735] [2021-11-19 14:49:11,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:11,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:11,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:11,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:11,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:49:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:13,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:13,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-19 14:49:13,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-19 14:49:14,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:14,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127824735] [2021-11-19 14:49:14,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127824735] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:14,321 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:14,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:49:14,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136781745] [2021-11-19 14:49:14,322 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:14,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:49:14,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:14,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:49:14,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:14,326 INFO L87 Difference]: Start difference. First operand 7568 states and 10654 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-19 14:49:16,502 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 14:49:34,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:34,842 INFO L93 Difference]: Finished difference Result 29829 states and 42117 transitions. [2021-11-19 14:49:34,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:49:34,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 175 [2021-11-19 14:49:34,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:35,062 INFO L225 Difference]: With dead ends: 29829 [2021-11-19 14:49:35,062 INFO L226 Difference]: Without dead ends: 22292 [2021-11-19 14:49:35,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:35,122 INFO L933 BasicCegarLoop]: 5245 mSDtfsCounter, 9543 mSDsluCounter, 5878 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 1359 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9543 SdHoareTripleChecker+Valid, 11123 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1359 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:35,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9543 Valid, 11123 Invalid, 2693 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1359 Valid, 1333 Invalid, 1 Unknown, 0 Unchecked, 19.4s Time] [2021-11-19 14:49:35,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22292 states. [2021-11-19 14:49:36,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22292 to 22228. [2021-11-19 14:49:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22228 states, 15566 states have (on average 1.2920467685982269) internal successors, (20112), 15924 states have internal predecessors, (20112), 5602 states have call successors, (5602), 1076 states have call predecessors, (5602), 1057 states have return successors, (5696), 5431 states have call predecessors, (5696), 5598 states have call successors, (5696) [2021-11-19 14:49:36,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22228 states to 22228 states and 31410 transitions. [2021-11-19 14:49:36,662 INFO L78 Accepts]: Start accepts. Automaton has 22228 states and 31410 transitions. Word has length 175 [2021-11-19 14:49:36,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:36,664 INFO L470 AbstractCegarLoop]: Abstraction has 22228 states and 31410 transitions. [2021-11-19 14:49:36,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-19 14:49:36,665 INFO L276 IsEmpty]: Start isEmpty. Operand 22228 states and 31410 transitions. [2021-11-19 14:49:36,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-19 14:49:36,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:36,812 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1] [2021-11-19 14:49:36,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 14:49:37,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:37,013 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 14:49:37,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:37,013 INFO L85 PathProgramCache]: Analyzing trace with hash 8313641, now seen corresponding path program 1 times [2021-11-19 14:49:37,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:37,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928364645] [2021-11-19 14:49:37,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:37,016 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:37,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:37,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:37,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:49:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:38,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:38,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-19 14:49:39,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-19 14:49:40,125 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:40,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928364645] [2021-11-19 14:49:40,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928364645] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:40,126 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:40,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:49:40,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774788776] [2021-11-19 14:49:40,126 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:40,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:49:40,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:40,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:49:40,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:49:40,128 INFO L87 Difference]: Start difference. First operand 22228 states and 31410 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 14:49:42,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:44,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:44,174 INFO L93 Difference]: Finished difference Result 60870 states and 85736 transitions. [2021-11-19 14:49:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:49:44,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 174 [2021-11-19 14:49:44,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:44,542 INFO L225 Difference]: With dead ends: 60870 [2021-11-19 14:49:44,542 INFO L226 Difference]: Without dead ends: 38673 [2021-11-19 14:49:44,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 345 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 14:49:44,808 INFO L933 BasicCegarLoop]: 4202 mSDtfsCounter, 2716 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 7784 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:44,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2716 Valid, 7784 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 14:49:44,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38673 states. [2021-11-19 14:49:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38673 to 38635. [2021-11-19 14:49:47,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38635 states, 26981 states have (on average 1.2919091212334606) internal successors, (34857), 27588 states have internal predecessors, (34857), 9595 states have call successors, (9595), 2096 states have call predecessors, (9595), 2056 states have return successors, (9826), 9247 states have call predecessors, (9826), 9591 states have call successors, (9826) [2021-11-19 14:49:48,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38635 states to 38635 states and 54278 transitions. [2021-11-19 14:49:48,314 INFO L78 Accepts]: Start accepts. Automaton has 38635 states and 54278 transitions. Word has length 174 [2021-11-19 14:49:48,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:48,317 INFO L470 AbstractCegarLoop]: Abstraction has 38635 states and 54278 transitions. [2021-11-19 14:49:48,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 14:49:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 38635 states and 54278 transitions. [2021-11-19 14:49:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-19 14:49:48,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:48,330 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:49:48,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:48,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:48,761 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 14:49:48,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1336386500, now seen corresponding path program 1 times [2021-11-19 14:49:48,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:48,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257119841] [2021-11-19 14:49:48,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:48,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:48,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:48,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:48,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:49:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:50,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1628 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:50,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-19 14:49:51,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:51,715 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-19 14:49:51,716 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:51,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257119841] [2021-11-19 14:49:51,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257119841] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:51,717 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:51,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:49:51,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803868328] [2021-11-19 14:49:51,717 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:51,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:49:51,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:51,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:49:51,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:51,719 INFO L87 Difference]: Start difference. First operand 38635 states and 54278 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, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:49:53,890 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 14:50:10,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:10,960 INFO L93 Difference]: Finished difference Result 111592 states and 154976 transitions. [2021-11-19 14:50:10,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:50:10,961 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, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 177 [2021-11-19 14:50:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:11,483 INFO L225 Difference]: With dead ends: 111592 [2021-11-19 14:50:11,483 INFO L226 Difference]: Without dead ends: 72988 [2021-11-19 14:50:11,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:50:11,674 INFO L933 BasicCegarLoop]: 7451 mSDtfsCounter, 7465 mSDsluCounter, 5666 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 798 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7465 SdHoareTripleChecker+Valid, 13117 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:11,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7465 Valid, 13117 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 1419 Invalid, 1 Unknown, 0 Unchecked, 16.2s Time] [2021-11-19 14:50:11,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72988 states. [2021-11-19 14:50:16,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72988 to 72912. [2021-11-19 14:50:16,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72912 states, 50799 states have (on average 1.2806748164333943) internal successors, (65057), 51898 states have internal predecessors, (65057), 17546 states have call successors, (17546), 4642 states have call predecessors, (17546), 4564 states have return successors, (17825), 16885 states have call predecessors, (17825), 17542 states have call successors, (17825) [2021-11-19 14:50:16,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72912 states to 72912 states and 100428 transitions. [2021-11-19 14:50:16,938 INFO L78 Accepts]: Start accepts. Automaton has 72912 states and 100428 transitions. Word has length 177 [2021-11-19 14:50:16,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:16,945 INFO L470 AbstractCegarLoop]: Abstraction has 72912 states and 100428 transitions. [2021-11-19 14:50:16,945 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, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:50:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 72912 states and 100428 transitions. [2021-11-19 14:50:16,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-19 14:50:16,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:16,958 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 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, 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 14:50:17,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:17,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:50:17,174 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 14:50:17,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:17,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1565422839, now seen corresponding path program 1 times [2021-11-19 14:50:17,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:17,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067434877] [2021-11-19 14:50:17,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:17,178 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:17,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:17,181 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:17,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:50:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:19,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:50:19,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-11-19 14:50:22,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-19 14:50:24,253 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:24,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067434877] [2021-11-19 14:50:24,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067434877] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:24,254 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:24,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:50:24,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311377366] [2021-11-19 14:50:24,254 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:24,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:50:24,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:50:24,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:50:24,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:50:24,257 INFO L87 Difference]: Start difference. First operand 72912 states and 100428 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-19 14:50:29,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:29,690 INFO L93 Difference]: Finished difference Result 145538 states and 200444 transitions. [2021-11-19 14:50:29,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:50:29,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) Word has length 236 [2021-11-19 14:50:29,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:30,141 INFO L225 Difference]: With dead ends: 145538 [2021-11-19 14:50:30,142 INFO L226 Difference]: Without dead ends: 72912 [2021-11-19 14:50:30,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:50:30,365 INFO L933 BasicCegarLoop]: 3701 mSDtfsCounter, 5941 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5941 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1345 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:30,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5941 Valid, 3701 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1345 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:50:30,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72912 states. [2021-11-19 14:50:33,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72912 to 72912. [2021-11-19 14:50:33,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72912 states, 50799 states have (on average 1.2803204787495817) internal successors, (65039), 51898 states have internal predecessors, (65039), 17546 states have call successors, (17546), 4642 states have call predecessors, (17546), 4564 states have return successors, (17825), 16885 states have call predecessors, (17825), 17542 states have call successors, (17825) [2021-11-19 14:50:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72912 states to 72912 states and 100410 transitions. [2021-11-19 14:50:34,738 INFO L78 Accepts]: Start accepts. Automaton has 72912 states and 100410 transitions. Word has length 236 [2021-11-19 14:50:34,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:34,749 INFO L470 AbstractCegarLoop]: Abstraction has 72912 states and 100410 transitions. [2021-11-19 14:50:34,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-19 14:50:34,750 INFO L276 IsEmpty]: Start isEmpty. Operand 72912 states and 100410 transitions. [2021-11-19 14:50:34,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-19 14:50:34,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:34,759 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 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, 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 14:50:34,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:34,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:50:34,973 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 14:50:34,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:34,974 INFO L85 PathProgramCache]: Analyzing trace with hash 833455413, now seen corresponding path program 1 times [2021-11-19 14:50:34,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:34,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102879932] [2021-11-19 14:50:34,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:34,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:34,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:34,980 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:35,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:50:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:36,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 1702 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:50:36,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:38,211 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2021-11-19 14:50:38,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2021-11-19 14:50:39,493 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:39,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102879932] [2021-11-19 14:50:39,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102879932] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:50:39,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:50:39,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-11-19 14:50:39,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941593235] [2021-11-19 14:50:39,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:39,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:50:39,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:50:39,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:50:39,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:50:39,496 INFO L87 Difference]: Start difference. First operand 72912 states and 100410 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 14:50:54,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:54,081 INFO L93 Difference]: Finished difference Result 184218 states and 260024 transitions. [2021-11-19 14:50:54,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:50:54,087 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 236 [2021-11-19 14:50:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:54,941 INFO L225 Difference]: With dead ends: 184218 [2021-11-19 14:50:54,941 INFO L226 Difference]: Without dead ends: 111592 [2021-11-19 14:50:55,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:50:55,276 INFO L933 BasicCegarLoop]: 5658 mSDtfsCounter, 3895 mSDsluCounter, 29629 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 1053 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4158 SdHoareTripleChecker+Valid, 35287 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1053 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:55,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4158 Valid, 35287 Invalid, 1816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1053 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-11-19 14:50:55,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111592 states. [2021-11-19 14:51:00,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111592 to 72930. [2021-11-19 14:51:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72930 states, 50817 states have (on average 1.279985044374914) internal successors, (65045), 51916 states have internal predecessors, (65045), 17546 states have call successors, (17546), 4642 states have call predecessors, (17546), 4564 states have return successors, (17825), 16885 states have call predecessors, (17825), 17542 states have call successors, (17825) [2021-11-19 14:51:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72930 states to 72930 states and 100416 transitions. [2021-11-19 14:51:01,390 INFO L78 Accepts]: Start accepts. Automaton has 72930 states and 100416 transitions. Word has length 236 [2021-11-19 14:51:01,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:01,391 INFO L470 AbstractCegarLoop]: Abstraction has 72930 states and 100416 transitions. [2021-11-19 14:51:01,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 14:51:01,392 INFO L276 IsEmpty]: Start isEmpty. Operand 72930 states and 100416 transitions. [2021-11-19 14:51:01,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-19 14:51:01,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:01,404 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 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, 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 14:51:01,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:01,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:51:01,629 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 14:51:01,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:01,630 INFO L85 PathProgramCache]: Analyzing trace with hash 817936695, now seen corresponding path program 1 times [2021-11-19 14:51:01,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:01,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33105702] [2021-11-19 14:51:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:01,631 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:01,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:01,632 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:01,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0769e4b0-2f49-472e-b3cc-a649b3a3f404/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:51:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:03,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:51:03,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-19 14:51:09,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-19 14:51:10,927 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:10,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33105702] [2021-11-19 14:51:10,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33105702] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:10,928 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:51:10,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:51:10,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214190389] [2021-11-19 14:51:10,928 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:10,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:51:10,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:10,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:51:10,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:51:10,930 INFO L87 Difference]: Start difference. First operand 72930 states and 100416 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-19 14:51:21,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:51:23,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:51:35,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:35,893 INFO L93 Difference]: Finished difference Result 225442 states and 310053 transitions. [2021-11-19 14:51:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:51:35,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) Word has length 236 [2021-11-19 14:51:35,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:37,182 INFO L225 Difference]: With dead ends: 225442 [2021-11-19 14:51:37,183 INFO L226 Difference]: Without dead ends: 152798 [2021-11-19 14:51:37,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:51:37,516 INFO L933 BasicCegarLoop]: 6408 mSDtfsCounter, 6439 mSDsluCounter, 5821 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 595 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6441 SdHoareTripleChecker+Valid, 12229 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:37,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6441 Valid, 12229 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 1296 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2021-11-19 14:51:37,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152798 states.