./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-dec-tulip-uli526x.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_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/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_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/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_5c232462-ec63-4a73-89fd-df90ac6257a8/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 b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:43:32,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:43:32,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:43:32,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:43:32,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:43:32,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:43:32,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:43:32,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:43:32,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:43:32,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:43:32,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:43:32,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:43:32,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:43:32,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:43:32,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:43:32,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:43:32,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:43:32,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:43:32,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:43:32,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:43:32,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:43:32,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:43:32,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:43:32,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:43:32,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:43:32,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:43:32,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:43:32,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:43:32,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:43:32,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:43:32,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:43:32,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:43:32,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:43:32,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:43:32,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:43:32,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:43:32,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:43:32,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:43:32,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:43:32,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:43:32,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:43:32,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:43:32,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:43:32,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:43:32,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:43:32,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:43:32,421 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:43:32,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:43:32,421 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:43:32,422 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:43:32,422 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:43:32,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:43:32,429 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:43:32,429 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:43:32,429 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:43:32,430 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:43:32,430 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:43:32,430 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:43:32,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:43:32,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:43:32,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:43:32,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:43:32,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:43:32,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:43:32,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:43:32,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:43:32,432 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:43:32,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:43:32,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:43:32,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:43:32,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:43:32,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:43:32,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:43:32,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:43:32,435 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:43:32,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:43:32,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:43:32,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:43:32,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:43:32,436 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_5c232462-ec63-4a73-89fd-df90ac6257a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2021-11-19 15:43:32,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:43:32,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:43:32,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:43:32,715 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:43:32,715 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:43:32,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 15:43:32,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data/d9721cc71/c608d66ba47e433f97ba900078194bbd/FLAG7dc7c27f8 [2021-11-19 15:43:33,751 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:43:33,752 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 15:43:33,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data/d9721cc71/c608d66ba47e433f97ba900078194bbd/FLAG7dc7c27f8 [2021-11-19 15:43:34,146 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data/d9721cc71/c608d66ba47e433f97ba900078194bbd [2021-11-19 15:43:34,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:43:34,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:43:34,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:43:34,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:43:34,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:43:34,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:43:34" (1/1) ... [2021-11-19 15:43:34,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0585a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:34, skipping insertion in model container [2021-11-19 15:43:34,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:43:34" (1/1) ... [2021-11-19 15:43:34,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:43:34,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:43:36,136 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 15:43:36,146 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 15:43:37,114 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-19 15:43:37,117 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-19 15:43:37,117 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-19 15:43:37,118 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-19 15:43:37,137 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:43:37,172 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 15:43:37,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@11b29ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:37, skipping insertion in model container [2021-11-19 15:43:37,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:43:37,173 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:43:37,176 INFO L158 Benchmark]: Toolchain (without parser) took 3024.99ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 80.2MB in the beginning and 72.9MB in the end (delta: 7.2MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2021-11-19 15:43:37,176 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 42.7MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:43:37,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3022.21ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 79.9MB in the beginning and 72.9MB in the end (delta: 7.0MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2021-11-19 15:43:37,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 42.7MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3022.21ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 79.9MB in the beginning and 72.9MB in the end (delta: 7.0MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6092]: 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_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/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_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/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_5c232462-ec63-4a73-89fd-df90ac6257a8/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 b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:43:39,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:43:39,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:43:39,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:43:39,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:43:39,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:43:39,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:43:39,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:43:39,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:43:39,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:43:39,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:43:39,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:43:39,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:43:39,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:43:39,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:43:39,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:43:39,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:43:39,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:43:39,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:43:39,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:43:39,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:43:39,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:43:39,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:43:39,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:43:39,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:43:39,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:43:39,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:43:39,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:43:39,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:43:39,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:43:39,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:43:39,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:43:39,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:43:39,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:43:39,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:43:39,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:43:39,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:43:39,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:43:39,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:43:39,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:43:39,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:43:39,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:43:39,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:43:39,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:43:39,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:43:39,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:43:39,592 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:43:39,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:43:39,592 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:43:39,593 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:43:39,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:43:39,593 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:43:39,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:43:39,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:43:39,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:43:39,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:43:39,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:43:39,596 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:43:39,596 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:43:39,596 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:43:39,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:43:39,597 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:43:39,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:43:39,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:43:39,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:43:39,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:43:39,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:43:39,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:43:39,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:43:39,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:43:39,599 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:43:39,599 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:43:39,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:43:39,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:43:39,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:43:39,601 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_5c232462-ec63-4a73-89fd-df90ac6257a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2021-11-19 15:43:39,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:43:40,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:43:40,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:43:40,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:43:40,016 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:43:40,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 15:43:40,100 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data/d6bde8afa/0d987721604b4a0d9e794d8677416aeb/FLAG1e4a74357 [2021-11-19 15:43:41,116 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:43:41,118 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 15:43:41,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data/d6bde8afa/0d987721604b4a0d9e794d8677416aeb/FLAG1e4a74357 [2021-11-19 15:43:41,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/data/d6bde8afa/0d987721604b4a0d9e794d8677416aeb [2021-11-19 15:43:41,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:43:41,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:43:41,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:43:41,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:43:41,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:43:41,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:43:41" (1/1) ... [2021-11-19 15:43:41,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3800bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:41, skipping insertion in model container [2021-11-19 15:43:41,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:43:41" (1/1) ... [2021-11-19 15:43:41,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:43:41,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:43:44,489 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-19 15:43:44,492 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-19 15:43:44,493 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-19 15:43:44,494 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-19 15:43:44,529 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:43:44,596 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:43:44,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:43:44,947 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-19 15:43:44,948 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-19 15:43:44,948 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-19 15:43:44,949 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-19 15:43:44,955 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:43:44,989 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:43:45,626 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-19 15:43:45,627 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-19 15:43:45,627 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-19 15:43:45,628 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_5c232462-ec63-4a73-89fd-df90ac6257a8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-19 15:43:45,638 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:43:45,880 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:43:45,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45 WrapperNode [2021-11-19 15:43:45,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:43:45,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:43:45,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:43:45,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:43:45,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,180 INFO L137 Inliner]: procedures = 426, calls = 1642, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 3965 [2021-11-19 15:43:46,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:43:46,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:43:46,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:43:46,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:43:46,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:43:46,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:43:46,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:43:46,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:43:46,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (1/1) ... [2021-11-19 15:43:46,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:43:46,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:43:46,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:43:46,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:43:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 15:43:46,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 15:43:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 15:43:46,552 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 15:43:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 15:43:46,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 15:43:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 15:43:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 15:43:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:43:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:43:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:43:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:43:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 15:43:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 15:43:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-19 15:43:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-19 15:43:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-19 15:43:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-19 15:43:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 15:43:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 15:43:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-19 15:43:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-19 15:43:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2021-11-19 15:43:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2021-11-19 15:43:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 15:43:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 15:43:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 15:43:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 15:43:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 15:43:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 15:43:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-19 15:43:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-19 15:43:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 15:43:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 15:43:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 15:43:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 15:43:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-19 15:43:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-19 15:43:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:43:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2021-11-19 15:43:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2021-11-19 15:43:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:43:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:43:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:43:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 15:43:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 15:43:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 15:43:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 15:43:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 15:43:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 15:43:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2021-11-19 15:43:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2021-11-19 15:43:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2021-11-19 15:43:46,564 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2021-11-19 15:43:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-19 15:43:46,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-19 15:43:46,565 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 15:43:46,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 15:43:46,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 15:43:46,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 15:43:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 15:43:46,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 15:43:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 15:43:46,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 15:43:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 15:43:46,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 15:43:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 15:43:46,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 15:43:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 15:43:46,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 15:43:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2021-11-19 15:43:46,568 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2021-11-19 15:43:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:43:46,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:43:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2021-11-19 15:43:46,569 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2021-11-19 15:43:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:43:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 15:43:46,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 15:43:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 15:43:46,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 15:43:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:43:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-11-19 15:43:46,572 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-11-19 15:43:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 15:43:46,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 15:43:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 15:43:46,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 15:43:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:43:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:43:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:43:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:43:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:43:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:43:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 15:43:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 15:43:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 15:43:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 15:43:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 15:43:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 15:43:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 15:43:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 15:43:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:43:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-19 15:43:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-19 15:43:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:43:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:43:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:43:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2021-11-19 15:43:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2021-11-19 15:43:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2021-11-19 15:43:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2021-11-19 15:43:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:43:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:43:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:43:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:43:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:43:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:43:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:43:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:43:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:43:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 15:43:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 15:43:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-19 15:43:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-19 15:43:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 15:43:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 15:43:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 15:43:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 15:43:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 15:43:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 15:43:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 15:43:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 15:43:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 15:43:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 15:43:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-11-19 15:43:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-11-19 15:43:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-19 15:43:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-19 15:43:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 15:43:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 15:43:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:43:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 15:43:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 15:43:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:43:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 15:43:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 15:43:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:43:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:43:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:43:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:43:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:43:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 15:43:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 15:43:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 15:43:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 15:43:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2021-11-19 15:43:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2021-11-19 15:43:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 15:43:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 15:43:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2021-11-19 15:43:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2021-11-19 15:43:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-19 15:43:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-19 15:43:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2021-11-19 15:43:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2021-11-19 15:43:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-11-19 15:43:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-11-19 15:43:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:43:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:43:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:43:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:43:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:43:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:43:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-11-19 15:43:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-11-19 15:43:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2021-11-19 15:43:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2021-11-19 15:43:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 15:43:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 15:43:46,599 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 15:43:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 15:43:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 15:43:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 15:43:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2021-11-19 15:43:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2021-11-19 15:43:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 15:43:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 15:43:47,413 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:43:47,416 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:43:56,380 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:44:29,642 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 15:44:29,679 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:44:29,698 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:44:29,699 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:44:29,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:44:29 BoogieIcfgContainer [2021-11-19 15:44:29,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:44:29,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:44:29,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:44:29,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:44:29,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:43:41" (1/3) ... [2021-11-19 15:44:29,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a88ca60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:44:29, skipping insertion in model container [2021-11-19 15:44:29,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:45" (2/3) ... [2021-11-19 15:44:29,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a88ca60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:44:29, skipping insertion in model container [2021-11-19 15:44:29,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:44:29" (3/3) ... [2021-11-19 15:44:29,712 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 15:44:29,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:44:29,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 15:44:29,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:44:29,796 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 15:44:29,796 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 15:44:29,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 1500 states, 1029 states have (on average 1.2896015549076774) internal successors, (1327), 1052 states have internal predecessors, (1327), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) [2021-11-19 15:44:29,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 15:44:29,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:29,877 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:29,877 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 15:44:29,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:29,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1516078922, now seen corresponding path program 1 times [2021-11-19 15:44:29,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:29,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311824283] [2021-11-19 15:44:29,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:29,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:29,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:29,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:29,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:44:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:30,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:44:30,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:44:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 15:44:31,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:44:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 15:44:31,843 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:44:31,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311824283] [2021-11-19 15:44:31,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311824283] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:44:31,844 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:44:31,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:44:31,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880514312] [2021-11-19 15:44:31,848 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:44:31,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:44:31,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:44:31,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:44:31,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:44:31,895 INFO L87 Difference]: Start difference. First operand has 1500 states, 1029 states have (on average 1.2896015549076774) internal successors, (1327), 1052 states have internal predecessors, (1327), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 15:44:34,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:44:37,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:44:37,714 INFO L93 Difference]: Finished difference Result 5748 states and 8213 transitions. [2021-11-19 15:44:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:44:37,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 127 [2021-11-19 15:44:37,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:44:37,788 INFO L225 Difference]: With dead ends: 5748 [2021-11-19 15:44:37,789 INFO L226 Difference]: Without dead ends: 4254 [2021-11-19 15:44:37,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:44:37,810 INFO L933 BasicCegarLoop]: 2818 mSDtfsCounter, 3966 mSDsluCounter, 4995 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 7813 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:44:37,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3966 Valid, 7813 Invalid, 826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-19 15:44:37,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4254 states. [2021-11-19 15:44:38,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4254 to 4227. [2021-11-19 15:44:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4227 states, 2929 states have (on average 1.283714578354387) internal successors, (3760), 2994 states have internal predecessors, (3760), 1068 states have call successors, (1068), 228 states have call predecessors, (1068), 227 states have return successors, (1064), 1046 states have call predecessors, (1064), 1064 states have call successors, (1064) [2021-11-19 15:44:38,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 5892 transitions. [2021-11-19 15:44:38,270 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 5892 transitions. Word has length 127 [2021-11-19 15:44:38,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:44:38,272 INFO L470 AbstractCegarLoop]: Abstraction has 4227 states and 5892 transitions. [2021-11-19 15:44:38,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 15:44:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 5892 transitions. [2021-11-19 15:44:38,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-19 15:44:38,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:38,294 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:38,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:44:38,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:44:38,517 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 15:44:38,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:38,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1865631653, now seen corresponding path program 1 times [2021-11-19 15:44:38,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:38,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724612690] [2021-11-19 15:44:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:38,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:38,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:38,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:38,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:44:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:39,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:44:39,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:44:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 15:44:39,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:44:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 15:44:40,291 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:44:40,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724612690] [2021-11-19 15:44:40,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724612690] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:44:40,292 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:44:40,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:44:40,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208067542] [2021-11-19 15:44:40,293 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:44:40,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:44:40,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:44:40,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:44:40,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:44:40,298 INFO L87 Difference]: Start difference. First operand 4227 states and 5892 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 15:44:42,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:44:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:44:45,998 INFO L93 Difference]: Finished difference Result 16533 states and 23091 transitions. [2021-11-19 15:44:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:44:45,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 131 [2021-11-19 15:44:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:44:46,122 INFO L225 Difference]: With dead ends: 16533 [2021-11-19 15:44:46,122 INFO L226 Difference]: Without dead ends: 12329 [2021-11-19 15:44:46,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:44:46,148 INFO L933 BasicCegarLoop]: 2808 mSDtfsCounter, 4005 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4005 SdHoareTripleChecker+Valid, 7661 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:44:46,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4005 Valid, 7661 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 760 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2021-11-19 15:44:46,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12329 states. [2021-11-19 15:44:46,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12329 to 12265. [2021-11-19 15:44:46,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12265 states, 8531 states have (on average 1.2884773180166451) internal successors, (10992), 8740 states have internal predecessors, (10992), 3064 states have call successors, (3064), 680 states have call predecessors, (3064), 667 states have return successors, (3078), 2970 states have call predecessors, (3078), 3060 states have call successors, (3078) [2021-11-19 15:44:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12265 states to 12265 states and 17134 transitions. [2021-11-19 15:44:47,049 INFO L78 Accepts]: Start accepts. Automaton has 12265 states and 17134 transitions. Word has length 131 [2021-11-19 15:44:47,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:44:47,051 INFO L470 AbstractCegarLoop]: Abstraction has 12265 states and 17134 transitions. [2021-11-19 15:44:47,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 15:44:47,052 INFO L276 IsEmpty]: Start isEmpty. Operand 12265 states and 17134 transitions. [2021-11-19 15:44:47,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-19 15:44:47,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:47,058 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:47,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:44:47,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:44:47,281 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 15:44:47,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:47,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1799950092, now seen corresponding path program 1 times [2021-11-19 15:44:47,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:47,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334081638] [2021-11-19 15:44:47,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:47,283 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:47,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:47,286 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:47,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:44:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:48,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:44:48,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:44:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 15:44:48,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:44:49,009 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 15:44:49,009 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:44:49,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334081638] [2021-11-19 15:44:49,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334081638] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:44:49,010 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:44:49,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:44:49,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78214275] [2021-11-19 15:44:49,010 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:44:49,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:44:49,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:44:49,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:44:49,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:44:49,016 INFO L87 Difference]: Start difference. First operand 12265 states and 17134 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 15:44:51,136 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 15:44:56,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:44:56,017 INFO L93 Difference]: Finished difference Result 46351 states and 64483 transitions. [2021-11-19 15:44:56,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:44:56,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 131 [2021-11-19 15:44:56,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:44:56,282 INFO L225 Difference]: With dead ends: 46351 [2021-11-19 15:44:56,282 INFO L226 Difference]: Without dead ends: 34109 [2021-11-19 15:44:56,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:44:56,359 INFO L933 BasicCegarLoop]: 2795 mSDtfsCounter, 4783 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 702 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4783 SdHoareTripleChecker+Valid, 5906 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 702 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:44:56,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4783 Valid, 5906 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [702 Valid, 688 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-19 15:44:56,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34109 states. [2021-11-19 15:44:58,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34109 to 34021. [2021-11-19 15:44:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34021 states, 23543 states have (on average 1.2798708745699359) internal successors, (30132), 24160 states have internal predecessors, (30132), 8530 states have call successors, (8530), 1994 states have call predecessors, (8530), 1945 states have return successors, (8586), 8226 states have call predecessors, (8586), 8526 states have call successors, (8586) [2021-11-19 15:44:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34021 states to 34021 states and 47248 transitions. [2021-11-19 15:44:58,629 INFO L78 Accepts]: Start accepts. Automaton has 34021 states and 47248 transitions. Word has length 131 [2021-11-19 15:44:58,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:44:58,631 INFO L470 AbstractCegarLoop]: Abstraction has 34021 states and 47248 transitions. [2021-11-19 15:44:58,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 15:44:58,631 INFO L276 IsEmpty]: Start isEmpty. Operand 34021 states and 47248 transitions. [2021-11-19 15:44:58,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-19 15:44:58,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:58,635 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:58,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:44:58,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:44:58,836 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 15:44:58,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:58,837 INFO L85 PathProgramCache]: Analyzing trace with hash 132916342, now seen corresponding path program 1 times [2021-11-19 15:44:58,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:58,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386415949] [2021-11-19 15:44:58,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:58,838 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:58,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:58,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:58,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:44:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:59,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:44:59,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:45:00,076 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 15:45:00,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:45:00,429 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 15:45:00,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:45:00,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386415949] [2021-11-19 15:45:00,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386415949] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:45:00,430 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:45:00,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:45:00,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244972151] [2021-11-19 15:45:00,431 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:45:00,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:45:00,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:45:00,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:45:00,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:45:00,433 INFO L87 Difference]: Start difference. First operand 34021 states and 47248 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 15:45:02,558 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 15:45:07,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:45:07,695 INFO L93 Difference]: Finished difference Result 84546 states and 116825 transitions. [2021-11-19 15:45:07,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:45:07,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 137 [2021-11-19 15:45:07,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:45:08,056 INFO L225 Difference]: With dead ends: 84546 [2021-11-19 15:45:08,056 INFO L226 Difference]: Without dead ends: 50548 [2021-11-19 15:45:08,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:45:08,191 INFO L933 BasicCegarLoop]: 2749 mSDtfsCounter, 4102 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 446 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4102 SdHoareTripleChecker+Valid, 5462 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:45:08,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4102 Valid, 5462 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 835 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-11-19 15:45:08,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50548 states. [2021-11-19 15:45:10,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50548 to 50464. [2021-11-19 15:45:10,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50464 states, 35780 states have (on average 1.285382895472331) internal successors, (45991), 36626 states have internal predecessors, (45991), 11563 states have call successors, (11563), 3201 states have call predecessors, (11563), 3118 states have return successors, (11599), 11112 states have call predecessors, (11599), 11559 states have call successors, (11599) [2021-11-19 15:45:10,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50464 states to 50464 states and 69153 transitions. [2021-11-19 15:45:10,705 INFO L78 Accepts]: Start accepts. Automaton has 50464 states and 69153 transitions. Word has length 137 [2021-11-19 15:45:10,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:45:10,706 INFO L470 AbstractCegarLoop]: Abstraction has 50464 states and 69153 transitions. [2021-11-19 15:45:10,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 15:45:10,707 INFO L276 IsEmpty]: Start isEmpty. Operand 50464 states and 69153 transitions. [2021-11-19 15:45:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-19 15:45:10,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:45:10,710 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:45:10,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:45:10,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:45:10,933 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:45:10,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:45:10,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1151873416, now seen corresponding path program 1 times [2021-11-19 15:45:10,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:45:10,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556655323] [2021-11-19 15:45:10,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:45:10,936 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:45:10,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:45:10,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:45:10,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:45:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:45:11,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:45:11,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:45:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 15:45:12,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:45:12,515 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 15:45:12,515 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:45:12,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556655323] [2021-11-19 15:45:12,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556655323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:45:12,516 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:45:12,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:45:12,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73905911] [2021-11-19 15:45:12,516 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:45:12,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:45:12,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:45:12,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:45:12,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:45:12,518 INFO L87 Difference]: Start difference. First operand 50464 states and 69153 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-19 15:45:14,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:45:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:45:17,556 INFO L93 Difference]: Finished difference Result 134164 states and 183880 transitions. [2021-11-19 15:45:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:45:17,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 140 [2021-11-19 15:45:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:45:18,257 INFO L225 Difference]: With dead ends: 134164 [2021-11-19 15:45:18,258 INFO L226 Difference]: Without dead ends: 83723 [2021-11-19 15:45:18,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 277 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 15:45:18,428 INFO L933 BasicCegarLoop]: 2422 mSDtfsCounter, 1829 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 4424 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:45:18,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1829 Valid, 4424 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 15:45:18,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83723 states. [2021-11-19 15:45:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83723 to 83669. [2021-11-19 15:45:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83669 states, 58842 states have (on average 1.2805139186295502) internal successors, (75348), 60243 states have internal predecessors, (75348), 19492 states have call successors, (19492), 5501 states have call predecessors, (19492), 5332 states have return successors, (19570), 18656 states have call predecessors, (19570), 19488 states have call successors, (19570) [2021-11-19 15:45:22,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83669 states to 83669 states and 114410 transitions. [2021-11-19 15:45:22,727 INFO L78 Accepts]: Start accepts. Automaton has 83669 states and 114410 transitions. Word has length 140 [2021-11-19 15:45:22,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:45:22,728 INFO L470 AbstractCegarLoop]: Abstraction has 83669 states and 114410 transitions. [2021-11-19 15:45:22,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-19 15:45:22,728 INFO L276 IsEmpty]: Start isEmpty. Operand 83669 states and 114410 transitions. [2021-11-19 15:45:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-19 15:45:22,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:45:22,732 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2021-11-19 15:45:22,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:45:22,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:45:22,952 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:45:22,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:45:22,952 INFO L85 PathProgramCache]: Analyzing trace with hash 711126161, now seen corresponding path program 1 times [2021-11-19 15:45:22,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:45:22,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093888643] [2021-11-19 15:45:22,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:45:22,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:45:22,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:45:22,957 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:45:23,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c232462-ec63-4a73-89fd-df90ac6257a8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:45:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:45:24,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:45:24,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:45:24,592 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-19 15:45:24,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:45:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-11-19 15:45:24,963 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:45:24,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093888643] [2021-11-19 15:45:24,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093888643] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:45:24,963 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:45:24,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:45:24,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392691486] [2021-11-19 15:45:24,964 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:45:24,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:45:24,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:45:24,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:45:24,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:45:24,965 INFO L87 Difference]: Start difference. First operand 83669 states and 114410 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-19 15:45:27,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:45:37,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:45:37,895 INFO L93 Difference]: Finished difference Result 331377 states and 453365 transitions. [2021-11-19 15:45:37,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:45:37,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 154 [2021-11-19 15:45:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:45:39,375 INFO L225 Difference]: With dead ends: 331377 [2021-11-19 15:45:39,376 INFO L226 Difference]: Without dead ends: 247731 [2021-11-19 15:45:40,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:45:40,005 INFO L933 BasicCegarLoop]: 3017 mSDtfsCounter, 4032 mSDsluCounter, 4972 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4032 SdHoareTripleChecker+Valid, 7989 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:45:40,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4032 Valid, 7989 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 762 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2021-11-19 15:45:40,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247731 states.