./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF --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-63182f1 [2021-11-12 22:15:34,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:15:34,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:15:34,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:15:34,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:15:34,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:15:34,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:15:34,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:15:34,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:15:34,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:15:34,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:15:34,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:15:34,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:15:34,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:15:34,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:15:34,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:15:34,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:15:34,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:15:34,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:15:34,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:15:34,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:15:34,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:15:34,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:15:34,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:15:34,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:15:34,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:15:34,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:15:34,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:15:34,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:15:34,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:15:34,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:15:34,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:15:34,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:15:34,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:15:34,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:15:34,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:15:34,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:15:34,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:15:34,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:15:34,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:15:34,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:15:34,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:15:34,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:15:34,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:15:34,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:15:34,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:15:34,236 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:15:34,236 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:15:34,236 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:15:34,236 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:15:34,237 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:15:34,237 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:15:34,238 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:15:34,238 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:15:34,238 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:15:34,238 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:15:34,239 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:15:34,239 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:15:34,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:15:34,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:15:34,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:15:34,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:15:34,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:15:34,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:15:34,241 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:15:34,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:15:34,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:15:34,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:15:34,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:15:34,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:15:34,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:15:34,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:15:34,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:15:34,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:15:34,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:15:34,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:15:34,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:15:34,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:15:34,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:15:34,246 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2021-11-12 22:15:34,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:15:34,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:15:34,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:15:34,561 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:15:34,562 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:15:34,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-12 22:15:34,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data/849673497/466ef9b8869e43788dbdce191a9d923b/FLAG5c643d2a3 [2021-11-12 22:15:35,476 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:15:35,477 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-12 22:15:35,540 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data/849673497/466ef9b8869e43788dbdce191a9d923b/FLAG5c643d2a3 [2021-11-12 22:15:35,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data/849673497/466ef9b8869e43788dbdce191a9d923b [2021-11-12 22:15:35,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:15:35,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:15:35,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:35,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:15:35,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:15:35,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:35" (1/1) ... [2021-11-12 22:15:35,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f33b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:35, skipping insertion in model container [2021-11-12 22:15:35,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:35" (1/1) ... [2021-11-12 22:15:35,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:15:36,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:15:37,868 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:15:37,870 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:15:38,765 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-12 22:15:38,768 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-12 22:15:38,769 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-12 22:15:38,770 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-12 22:15:38,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:38,849 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) [2021-11-12 22:15:38,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42ecacfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:38, skipping insertion in model container [2021-11-12 22:15:38,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:38,850 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:15:38,852 INFO L158 Benchmark]: Toolchain (without parser) took 2909.14ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 65.6MB in the beginning and 100.0MB in the end (delta: -34.4MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2021-11-12 22:15:38,853 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:15:38,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2906.91ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 65.6MB in the beginning and 100.0MB in the end (delta: -34.4MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2021-11-12 22:15:38,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2906.91ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 65.6MB in the beginning and 100.0MB in the end (delta: -34.4MB). Peak memory consumption was 58.5MB. 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF --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-63182f1 [2021-11-12 22:15:41,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:15:41,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:15:41,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:15:41,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:15:41,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:15:41,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:15:41,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:15:41,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:15:41,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:15:41,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:15:41,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:15:41,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:15:41,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:15:41,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:15:41,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:15:41,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:15:41,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:15:41,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:15:41,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:15:41,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:15:41,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:15:41,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:15:41,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:15:41,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:15:41,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:15:41,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:15:41,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:15:41,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:15:41,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:15:41,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:15:41,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:15:41,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:15:41,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:15:41,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:15:41,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:15:41,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:15:41,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:15:41,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:15:41,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:15:41,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:15:41,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:15:41,215 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:15:41,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:15:41,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:15:41,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:15:41,218 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:15:41,218 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:15:41,218 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:15:41,218 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:15:41,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:15:41,218 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:15:41,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:15:41,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:15:41,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:15:41,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:15:41,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:15:41,221 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:15:41,222 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:15:41,222 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:15:41,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:15:41,222 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:15:41,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:15:41,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:15:41,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:15:41,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:15:41,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:15:41,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:15:41,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:15:41,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:15:41,224 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:15:41,224 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:15:41,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:15:41,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:15:41,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:15:41,225 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2021-11-12 22:15:41,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:15:41,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:15:41,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:15:41,655 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:15:41,656 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:15:41,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-12 22:15:41,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data/3a145246a/4725dd161c8345d09915252851331aa7/FLAG8eede51f4 [2021-11-12 22:15:42,683 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:15:42,684 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-12 22:15:42,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data/3a145246a/4725dd161c8345d09915252851331aa7/FLAG8eede51f4 [2021-11-12 22:15:43,043 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/data/3a145246a/4725dd161c8345d09915252851331aa7 [2021-11-12 22:15:43,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:15:43,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:15:43,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:43,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:15:43,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:15:43,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:43" (1/1) ... [2021-11-12 22:15:43,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:43, skipping insertion in model container [2021-11-12 22:15:43,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:43" (1/1) ... [2021-11-12 22:15:43,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:15:43,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:15:45,927 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-12 22:15:45,930 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-12 22:15:45,931 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-12 22:15:45,931 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-12 22:15:45,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:46,009 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:15:46,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:15:46,359 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-12 22:15:46,360 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-12 22:15:46,360 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-12 22:15:46,361 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-12 22:15:46,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:46,389 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:15:46,805 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-12 22:15:46,805 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-12 22:15:46,806 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-12 22:15:46,806 WARN L228 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_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-12 22:15:46,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:47,195 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:15:47,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47 WrapperNode [2021-11-12 22:15:47,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:47,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:15:47,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:15:47,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:15:47,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:15:47,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:15:47,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:15:47,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:15:47,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:15:47,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:15:47,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:15:47,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:15:47,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (1/1) ... [2021-11-12 22:15:47,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:15:47,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:15:47,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:15:47,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:15:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:15:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:15:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:15:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:15:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-12 22:15:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-12 22:15:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:15:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:15:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:15:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:15:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:15:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:15:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 22:15:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 22:15:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-12 22:15:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-12 22:15:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-12 22:15:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-12 22:15:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 22:15:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 22:15:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-12 22:15:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-12 22:15:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2021-11-12 22:15:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2021-11-12 22:15:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 22:15:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 22:15:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:15:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:15:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 22:15:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 22:15:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-12 22:15:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-12 22:15:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 22:15:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 22:15:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:15:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:15:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-12 22:15:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-12 22:15:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:15:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2021-11-12 22:15:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2021-11-12 22:15:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:15:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:15:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:15:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:15:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:15:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 22:15:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 22:15:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:15:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:15:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2021-11-12 22:15:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2021-11-12 22:15:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2021-11-12 22:15:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2021-11-12 22:15:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-12 22:15:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-12 22:15:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 22:15:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 22:15:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:15:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:15:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:15:47,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:15:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:15:47,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:15:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:15:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:15:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 22:15:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 22:15:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 22:15:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 22:15:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2021-11-12 22:15:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2021-11-12 22:15:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:15:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:15:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2021-11-12 22:15:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2021-11-12 22:15:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:15:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:15:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:15:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 22:15:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 22:15:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-11-12 22:15:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-11-12 22:15:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:15:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:15:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:15:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:15:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:15:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:15:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:15:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:15:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:15:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:15:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 22:15:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 22:15:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:15:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:15:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-12 22:15:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-12 22:15:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 22:15:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 22:15:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:15:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-12 22:15:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-12 22:15:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:15:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:15:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:15:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2021-11-12 22:15:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2021-11-12 22:15:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2021-11-12 22:15:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2021-11-12 22:15:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:15:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:15:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:15:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:15:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:15:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:15:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:15:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:15:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:15:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 22:15:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 22:15:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-12 22:15:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-12 22:15:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:15:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:15:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 22:15:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 22:15:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-12 22:15:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-12 22:15:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 22:15:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 22:15:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 22:15:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 22:15:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-11-12 22:15:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-11-12 22:15:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-12 22:15:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-12 22:15:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 22:15:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 22:15:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:15:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 22:15:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 22:15:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:15:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 22:15:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 22:15:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:15:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:15:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:15:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:15:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:15:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:15:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:15:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:15:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:15:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2021-11-12 22:15:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2021-11-12 22:15:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:15:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:15:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2021-11-12 22:15:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2021-11-12 22:15:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-12 22:15:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-12 22:15:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2021-11-12 22:15:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2021-11-12 22:15:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-11-12 22:15:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-11-12 22:15:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:15:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:15:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:15:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:15:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:15:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:15:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-11-12 22:15:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-11-12 22:15:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2021-11-12 22:15:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2021-11-12 22:15:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:15:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:15:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-12 22:15:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-12 22:15:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 22:15:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 22:15:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2021-11-12 22:15:47,980 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2021-11-12 22:15:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:15:47,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:15:56,765 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:16:29,042 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:16:29,104 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:16:29,104 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:16:29,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:16:29 BoogieIcfgContainer [2021-11-12 22:16:29,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:16:29,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:16:29,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:16:29,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:16:29,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:15:43" (1/3) ... [2021-11-12 22:16:29,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f28db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:16:29, skipping insertion in model container [2021-11-12 22:16:29,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:47" (2/3) ... [2021-11-12 22:16:29,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f28db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:16:29, skipping insertion in model container [2021-11-12 22:16:29,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:16:29" (3/3) ... [2021-11-12 22:16:29,117 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-12 22:16:29,122 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:16:29,122 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:16:29,176 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:16:29,182 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 [2021-11-12 22:16:29,183 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:16:29,231 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) [2021-11-12 22:16:29,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-12 22:16:29,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:29,249 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] [2021-11-12 22:16:29,249 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)] === [2021-11-12 22:16:29,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:29,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1516078922, now seen corresponding path program 1 times [2021-11-12 22:16:29,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:29,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949342444] [2021-11-12 22:16:29,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:29,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:29,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:29,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:29,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:16:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:30,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:16:30,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:31,306 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 22:16:31,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:31,665 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 22:16:31,666 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:31,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949342444] [2021-11-12 22:16:31,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949342444] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:31,667 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:31,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:16:31,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630903283] [2021-11-12 22:16:31,669 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:31,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:16:31,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:31,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:16:31,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:16:31,705 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) [2021-11-12 22:16:33,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:16:37,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:37,364 INFO L93 Difference]: Finished difference Result 5748 states and 8213 transitions. [2021-11-12 22:16:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:16:37,367 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 [2021-11-12 22:16:37,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:37,436 INFO L225 Difference]: With dead ends: 5748 [2021-11-12 22:16:37,436 INFO L226 Difference]: Without dead ends: 4254 [2021-11-12 22:16:37,457 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 [2021-11-12 22:16:37,460 INFO L933 BasicCegarLoop]: 2818 mSDtfsCounter, 3966 mSDsluCounter, 4995 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4844.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 7813 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.27ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5221.94ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:37,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3966 Valid, 7813 Invalid, 826 Unknown, 0 Unchecked, 50.27ms Time], IncrementalHoareTripleChecker [20 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 5221.94ms Time] [2021-11-12 22:16:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4254 states. [2021-11-12 22:16:37,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4254 to 4227. [2021-11-12 22:16:37,830 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) [2021-11-12 22:16:37,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 5892 transitions. [2021-11-12 22:16:37,881 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 5892 transitions. Word has length 127 [2021-11-12 22:16:37,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:37,884 INFO L470 AbstractCegarLoop]: Abstraction has 4227 states and 5892 transitions. [2021-11-12 22:16:37,884 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) [2021-11-12 22:16:37,884 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 5892 transitions. [2021-11-12 22:16:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-12 22:16:37,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:37,894 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] [2021-11-12 22:16:37,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:38,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:38,109 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)] === [2021-11-12 22:16:38,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:38,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1865631653, now seen corresponding path program 1 times [2021-11-12 22:16:38,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:38,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102249251] [2021-11-12 22:16:38,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:38,113 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:38,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:38,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:38,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:16:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:39,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:16:39,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:39,935 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 22:16:39,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:40,301 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 22:16:40,301 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:40,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102249251] [2021-11-12 22:16:40,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102249251] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:40,302 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:40,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:16:40,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090394473] [2021-11-12 22:16:40,302 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:40,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:16:40,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:40,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:16:40,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:16:40,306 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) [2021-11-12 22:16:42,492 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:16:46,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:46,178 INFO L93 Difference]: Finished difference Result 16533 states and 23091 transitions. [2021-11-12 22:16:46,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:16:46,179 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 [2021-11-12 22:16:46,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:46,285 INFO L225 Difference]: With dead ends: 16533 [2021-11-12 22:16:46,286 INFO L226 Difference]: Without dead ends: 12329 [2021-11-12 22:16:46,312 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 [2021-11-12 22:16:46,313 INFO L933 BasicCegarLoop]: 2808 mSDtfsCounter, 4005 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4757.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4005 SdHoareTripleChecker+Valid, 7661 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.31ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5129.29ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:46,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4005 Valid, 7661 Invalid, 777 Unknown, 0 Unchecked, 36.31ms Time], IncrementalHoareTripleChecker [16 Valid, 760 Invalid, 1 Unknown, 0 Unchecked, 5129.29ms Time] [2021-11-12 22:16:46,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12329 states. [2021-11-12 22:16:46,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12329 to 12265. [2021-11-12 22:16:46,986 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) [2021-11-12 22:16:47,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12265 states to 12265 states and 17134 transitions. [2021-11-12 22:16:47,060 INFO L78 Accepts]: Start accepts. Automaton has 12265 states and 17134 transitions. Word has length 131 [2021-11-12 22:16:47,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:47,061 INFO L470 AbstractCegarLoop]: Abstraction has 12265 states and 17134 transitions. [2021-11-12 22:16:47,062 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) [2021-11-12 22:16:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 12265 states and 17134 transitions. [2021-11-12 22:16:47,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-12 22:16:47,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:47,071 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] [2021-11-12 22:16:47,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:47,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:47,286 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)] === [2021-11-12 22:16:47,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:47,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1799950092, now seen corresponding path program 1 times [2021-11-12 22:16:47,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:47,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167194242] [2021-11-12 22:16:47,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:47,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:47,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:47,289 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:47,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:16:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:48,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:16:48,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:49,163 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 22:16:49,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 22:16:49,477 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:49,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167194242] [2021-11-12 22:16:49,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167194242] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:49,478 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:49,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:16:49,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11537139] [2021-11-12 22:16:49,478 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:49,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:16:49,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:49,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:16:49,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:16:49,483 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) [2021-11-12 22:16:51,694 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 [] [2021-11-12 22:16:56,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:56,551 INFO L93 Difference]: Finished difference Result 46351 states and 64483 transitions. [2021-11-12 22:16:56,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:16:56,552 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 [2021-11-12 22:16:56,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:56,761 INFO L225 Difference]: With dead ends: 46351 [2021-11-12 22:16:56,762 INFO L226 Difference]: Without dead ends: 34109 [2021-11-12 22:16:56,837 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 [2021-11-12 22:16:56,838 INFO L933 BasicCegarLoop]: 2795 mSDtfsCounter, 4783 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 702 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5490.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4783 SdHoareTripleChecker+Valid, 5906 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.11ms SdHoareTripleChecker+Time, 702 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6010.02ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:56,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4783 Valid, 5906 Invalid, 1391 Unknown, 0 Unchecked, 29.11ms Time], IncrementalHoareTripleChecker [702 Valid, 688 Invalid, 1 Unknown, 0 Unchecked, 6010.02ms Time] [2021-11-12 22:16:56,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34109 states. [2021-11-12 22:16:58,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34109 to 34021. [2021-11-12 22:16:58,687 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) [2021-11-12 22:16:58,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34021 states to 34021 states and 47248 transitions. [2021-11-12 22:16:59,000 INFO L78 Accepts]: Start accepts. Automaton has 34021 states and 47248 transitions. Word has length 131 [2021-11-12 22:16:59,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:59,001 INFO L470 AbstractCegarLoop]: Abstraction has 34021 states and 47248 transitions. [2021-11-12 22:16:59,001 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) [2021-11-12 22:16:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 34021 states and 47248 transitions. [2021-11-12 22:16:59,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-12 22:16:59,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:59,012 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] [2021-11-12 22:16:59,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:59,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:59,240 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)] === [2021-11-12 22:16:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:59,241 INFO L85 PathProgramCache]: Analyzing trace with hash 132916342, now seen corresponding path program 1 times [2021-11-12 22:16:59,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:59,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647807789] [2021-11-12 22:16:59,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:59,243 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:59,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:59,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:59,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:17:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:17:00,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:17:00,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:17:00,826 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 22:17:00,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:17:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 22:17:01,123 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:17:01,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647807789] [2021-11-12 22:17:01,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647807789] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:17:01,124 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:17:01,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:17:01,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102497861] [2021-11-12 22:17:01,125 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:17:01,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:17:01,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:17:01,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:17:01,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:17:01,126 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) [2021-11-12 22:17:03,258 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 [] [2021-11-12 22:17:08,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:17:08,179 INFO L93 Difference]: Finished difference Result 84546 states and 116825 transitions. [2021-11-12 22:17:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:17:08,179 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 [2021-11-12 22:17:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:17:08,433 INFO L225 Difference]: With dead ends: 84546 [2021-11-12 22:17:08,434 INFO L226 Difference]: Without dead ends: 50548 [2021-11-12 22:17:08,556 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 [2021-11-12 22:17:08,558 INFO L933 BasicCegarLoop]: 2749 mSDtfsCounter, 4102 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 446 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5078.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4102 SdHoareTripleChecker+Valid, 5462 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.52ms SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5554.61ms IncrementalHoareTripleChecker+Time [2021-11-12 22:17:08,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4102 Valid, 5462 Invalid, 1282 Unknown, 0 Unchecked, 19.52ms Time], IncrementalHoareTripleChecker [446 Valid, 835 Invalid, 1 Unknown, 0 Unchecked, 5554.61ms Time] [2021-11-12 22:17:08,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50548 states. [2021-11-12 22:17:10,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50548 to 50464. [2021-11-12 22:17:10,933 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) [2021-11-12 22:17:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50464 states to 50464 states and 69153 transitions. [2021-11-12 22:17:11,134 INFO L78 Accepts]: Start accepts. Automaton has 50464 states and 69153 transitions. Word has length 137 [2021-11-12 22:17:11,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:17:11,136 INFO L470 AbstractCegarLoop]: Abstraction has 50464 states and 69153 transitions. [2021-11-12 22:17:11,136 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) [2021-11-12 22:17:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 50464 states and 69153 transitions. [2021-11-12 22:17:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-12 22:17:11,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:17:11,139 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] [2021-11-12 22:17:11,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:17:11,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:17:11,362 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)] === [2021-11-12 22:17:11,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:17:11,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1151873416, now seen corresponding path program 1 times [2021-11-12 22:17:11,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:17:11,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648607943] [2021-11-12 22:17:11,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:17:11,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:17:11,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:17:11,367 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:17:11,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:17:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:17:12,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:17:12,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:17:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 22:17:13,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:17:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 22:17:13,534 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:17:13,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648607943] [2021-11-12 22:17:13,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648607943] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:17:13,534 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:17:13,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:17:13,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383679998] [2021-11-12 22:17:13,535 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:17:13,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:17:13,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:17:13,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:17:13,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:17:13,536 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) [2021-11-12 22:17:15,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:17:18,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:17:18,496 INFO L93 Difference]: Finished difference Result 134164 states and 183880 transitions. [2021-11-12 22:17:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:17:18,496 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 [2021-11-12 22:17:18,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:17:18,867 INFO L225 Difference]: With dead ends: 134164 [2021-11-12 22:17:18,867 INFO L226 Difference]: Without dead ends: 83723 [2021-11-12 22:17:19,005 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 [2021-11-12 22:17:19,005 INFO L933 BasicCegarLoop]: 2422 mSDtfsCounter, 1829 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2216.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 4424 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.23ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2262.65ms IncrementalHoareTripleChecker+Time [2021-11-12 22:17:19,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1829 Valid, 4424 Invalid, 53 Unknown, 0 Unchecked, 8.23ms Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 2262.65ms Time] [2021-11-12 22:17:19,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83723 states. [2021-11-12 22:17:22,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83723 to 83669. [2021-11-12 22:17:23,017 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) [2021-11-12 22:17:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83669 states to 83669 states and 114410 transitions. [2021-11-12 22:17:23,799 INFO L78 Accepts]: Start accepts. Automaton has 83669 states and 114410 transitions. Word has length 140 [2021-11-12 22:17:23,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:17:23,800 INFO L470 AbstractCegarLoop]: Abstraction has 83669 states and 114410 transitions. [2021-11-12 22:17:23,800 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) [2021-11-12 22:17:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 83669 states and 114410 transitions. [2021-11-12 22:17:23,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-12 22:17:23,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:17:23,804 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] [2021-11-12 22:17:23,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 22:17:24,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:17:24,018 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)] === [2021-11-12 22:17:24,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:17:24,019 INFO L85 PathProgramCache]: Analyzing trace with hash 711126161, now seen corresponding path program 1 times [2021-11-12 22:17:24,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:17:24,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867249878] [2021-11-12 22:17:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:17:24,021 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:17:24,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:17:24,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:17:24,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c595a70d-5564-4e8d-8e11-a3a65fcb0b14/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:17:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:17:25,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:17:25,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:17:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-12 22:17:25,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:17:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-11-12 22:17:26,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:17:26,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867249878] [2021-11-12 22:17:26,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867249878] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:17:26,058 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:17:26,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:17:26,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877062001] [2021-11-12 22:17:26,059 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:17:26,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:17:26,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:17:26,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:17:26,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:17:26,061 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) [2021-11-12 22:17:28,196 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 [] [2021-11-12 22:17:38,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:17:38,391 INFO L93 Difference]: Finished difference Result 331377 states and 453365 transitions. [2021-11-12 22:17:38,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:17:38,393 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 [2021-11-12 22:17:38,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:17:40,201 INFO L225 Difference]: With dead ends: 331377 [2021-11-12 22:17:40,201 INFO L226 Difference]: Without dead ends: 247731 [2021-11-12 22:17:40,459 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 [2021-11-12 22:17:40,460 INFO L933 BasicCegarLoop]: 3017 mSDtfsCounter, 4032 mSDsluCounter, 4972 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4389.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4032 SdHoareTripleChecker+Valid, 7989 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.07ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4725.92ms IncrementalHoareTripleChecker+Time [2021-11-12 22:17:40,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4032 Valid, 7989 Invalid, 773 Unknown, 0 Unchecked, 19.07ms Time], IncrementalHoareTripleChecker [10 Valid, 762 Invalid, 1 Unknown, 0 Unchecked, 4725.92ms Time] [2021-11-12 22:17:40,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247731 states.