./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:27:36,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:27:36,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:27:36,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:27:36,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:27:36,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:27:36,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:27:36,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:27:36,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:27:36,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:27:36,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:27:36,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:27:36,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:27:36,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:27:36,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:27:36,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:27:36,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:27:36,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:27:36,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:27:36,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:27:36,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:27:36,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:27:36,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:27:36,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:27:36,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:27:36,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:27:36,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:27:36,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:27:36,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:27:36,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:27:36,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:27:36,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:27:36,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:27:36,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:27:36,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:27:36,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:27:36,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:27:36,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:27:36,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:27:36,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:27:36,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:27:36,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:27:36,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:27:36,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:27:36,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:27:36,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:27:36,261 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:27:36,262 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:27:36,262 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:27:36,262 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:27:36,262 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:27:36,263 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:27:36,263 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:27:36,263 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:27:36,263 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:27:36,264 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:27:36,264 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:27:36,264 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:27:36,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:27:36,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:27:36,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:27:36,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:27:36,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:27:36,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:27:36,266 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:27:36,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:27:36,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:27:36,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:27:36,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:27:36,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:27:36,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:27:36,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:27:36,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:27:36,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:27:36,268 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:27:36,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:27:36,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:27:36,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:27:36,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:27:36,269 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_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb [2021-11-19 14:27:36,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:27:36,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:27:36,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:27:36,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:27:36,596 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:27:36,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:27:36,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data/aa1223e41/eac9417f3d23436c801aa031502e8383/FLAG76228591b [2021-11-19 14:27:37,635 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:27:37,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:27:37,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data/aa1223e41/eac9417f3d23436c801aa031502e8383/FLAG76228591b [2021-11-19 14:27:38,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data/aa1223e41/eac9417f3d23436c801aa031502e8383 [2021-11-19 14:27:38,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:27:38,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:27:38,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:27:38,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:27:38,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:27:38,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:38" (1/1) ... [2021-11-19 14:27:38,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@475a07e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:38, skipping insertion in model container [2021-11-19 14:27:38,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:38" (1/1) ... [2021-11-19 14:27:38,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:27:38,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:27:40,456 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:40,649 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:40,700 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:40,706 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:40,707 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:40,708 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:40,709 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:40,803 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:40,810 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:27:41,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2021-11-19 14:27:41,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2021-11-19 14:27:41,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2021-11-19 14:27:41,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2021-11-19 14:27:41,653 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:27:41,744 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:27:41,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10e816f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:41, skipping insertion in model container [2021-11-19 14:27:41,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:27:41,745 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:27:41,747 INFO L158 Benchmark]: Toolchain (without parser) took 3674.27ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 82.3MB in the beginning and 118.6MB in the end (delta: -36.3MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2021-11-19 14:27:41,748 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 63.0MB in the beginning and 62.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:27:41,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3668.39ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 81.8MB in the beginning and 118.6MB in the end (delta: -36.7MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2021-11-19 14:27:41,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 63.0MB in the beginning and 62.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3668.39ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 81.8MB in the beginning and 118.6MB in the end (delta: -36.7MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6745]: 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_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:27:43,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:27:43,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:27:44,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:27:44,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:27:44,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:27:44,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:27:44,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:27:44,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:27:44,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:27:44,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:27:44,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:27:44,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:27:44,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:27:44,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:27:44,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:27:44,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:27:44,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:27:44,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:27:44,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:27:44,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:27:44,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:27:44,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:27:44,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:27:44,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:27:44,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:27:44,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:27:44,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:27:44,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:27:44,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:27:44,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:27:44,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:27:44,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:27:44,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:27:44,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:27:44,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:27:44,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:27:44,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:27:44,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:27:44,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:27:44,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:27:44,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:27:44,089 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:27:44,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:27:44,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:27:44,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:27:44,091 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:27:44,091 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:27:44,092 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:27:44,092 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:27:44,092 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:27:44,092 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:27:44,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:27:44,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:27:44,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:27:44,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:27:44,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:27:44,094 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:27:44,095 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:27:44,095 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:27:44,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:27:44,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:27:44,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:27:44,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:27:44,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:27:44,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:27:44,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:27:44,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:27:44,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:27:44,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:27:44,097 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:27:44,098 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:27:44,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:27:44,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:27:44,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:27:44,098 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_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb [2021-11-19 14:27:44,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:27:44,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:27:44,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:27:44,479 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:27:44,480 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:27:44,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:27:44,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data/483316685/d65d54b429d7421e8dead538c65ab178/FLAGbe9bc7a82 [2021-11-19 14:27:45,719 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:27:45,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:27:45,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data/483316685/d65d54b429d7421e8dead538c65ab178/FLAGbe9bc7a82 [2021-11-19 14:27:46,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/data/483316685/d65d54b429d7421e8dead538c65ab178 [2021-11-19 14:27:46,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:27:46,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:27:46,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:27:46,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:27:46,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:27:46,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:46" (1/1) ... [2021-11-19 14:27:46,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f81485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:46, skipping insertion in model container [2021-11-19 14:27:46,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:27:46" (1/1) ... [2021-11-19 14:27:46,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:27:46,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:27:49,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2021-11-19 14:27:49,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2021-11-19 14:27:49,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2021-11-19 14:27:49,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2021-11-19 14:27:49,900 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:27:49,978 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:27:50,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:27:50,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2021-11-19 14:27:50,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2021-11-19 14:27:50,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2021-11-19 14:27:50,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2021-11-19 14:27:50,530 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:27:50,577 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:27:51,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2021-11-19 14:27:51,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2021-11-19 14:27:51,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2021-11-19 14:27:51,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2021-11-19 14:27:51,040 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:27:51,535 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:27:51,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51 WrapperNode [2021-11-19 14:27:51,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:27:51,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:27:51,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:27:51,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:27:51,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:51,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:51,942 INFO L137 Inliner]: procedures = 504, calls = 2655, calls flagged for inlining = 292, calls inlined = 259, statements flattened = 5657 [2021-11-19 14:27:51,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:27:51,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:27:51,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:27:51,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:27:51,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:51,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:52,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:52,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:52,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:52,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:52,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:52,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:27:52,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:27:52,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:27:52,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:27:52,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (1/1) ... [2021-11-19 14:27:52,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:27:52,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:27:52,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:27:52,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:27:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:27:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:27:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:27:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:27:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 14:27:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 14:27:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:27:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:27:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:27:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:27:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 14:27:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 14:27:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2021-11-19 14:27:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2021-11-19 14:27:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-19 14:27:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-19 14:27:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:27:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:27:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-19 14:27:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-19 14:27:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:27:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:27:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-19 14:27:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-19 14:27:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2021-11-19 14:27:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2021-11-19 14:27:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-19 14:27:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-19 14:27:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:27:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:27:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:27:52,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:27:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2021-11-19 14:27:52,396 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2021-11-19 14:27:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:27:52,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:27:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:27:52,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:27:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:27:52,397 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:27:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-19 14:27:52,397 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-19 14:27:52,398 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:27:52,399 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:27:52,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:27:52,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:27:52,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 14:27:52,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 14:27:52,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:27:52,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:27:52,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:27:52,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:27:52,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:27:52,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:27:52,401 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-19 14:27:52,401 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-19 14:27:52,401 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2021-11-19 14:27:52,401 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2021-11-19 14:27:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:27:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:27:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:27:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:27:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-19 14:27:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-19 14:27:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2021-11-19 14:27:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2021-11-19 14:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:27:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:27:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2021-11-19 14:27:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2021-11-19 14:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:27:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:27:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:27:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:27:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:27:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2021-11-19 14:27:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2021-11-19 14:27:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-19 14:27:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-19 14:27:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:27:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:27:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:27:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:27:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2021-11-19 14:27:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2021-11-19 14:27:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2021-11-19 14:27:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2021-11-19 14:27:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:27:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:27:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:27:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:27:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:27:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 14:27:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 14:27:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-19 14:27:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-19 14:27:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:27:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-19 14:27:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-19 14:27:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:27:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:27:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:27:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:27:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:27:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:27:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-19 14:27:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-19 14:27:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:27:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:27:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-19 14:27:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-19 14:27:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2021-11-19 14:27:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2021-11-19 14:27:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2021-11-19 14:27:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2021-11-19 14:27:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-19 14:27:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-19 14:27:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 14:27:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 14:27:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-19 14:27:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-19 14:27:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:27:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:27:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:27:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:27:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-19 14:27:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-19 14:27:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:27:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:27:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2021-11-19 14:27:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2021-11-19 14:27:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2021-11-19 14:27:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2021-11-19 14:27:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-19 14:27:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-19 14:27:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:27:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:27:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-19 14:27:52,483 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-19 14:27:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:27:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:27:52,483 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:27:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:27:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:27:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:27:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:27:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:27:52,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:27:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-19 14:27:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2021-11-19 14:27:52,484 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2021-11-19 14:27:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:27:52,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:27:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:27:52,484 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:27:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2021-11-19 14:27:52,485 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2021-11-19 14:27:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-11-19 14:27:52,485 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-11-19 14:27:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:27:52,485 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:27:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2021-11-19 14:27:52,485 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2021-11-19 14:27:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-19 14:27:52,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-19 14:27:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:27:52,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:27:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2021-11-19 14:27:52,486 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2021-11-19 14:27:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2021-11-19 14:27:52,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2021-11-19 14:27:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:27:52,486 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:27:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:27:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:27:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:27:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:27:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:27:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:27:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2021-11-19 14:27:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2021-11-19 14:27:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-11-19 14:27:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-11-19 14:27:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:27:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:27:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:27:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:27:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:27:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2021-11-19 14:27:52,488 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2021-11-19 14:27:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2021-11-19 14:27:52,488 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2021-11-19 14:27:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-19 14:27:52,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-19 14:27:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2021-11-19 14:27:52,489 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2021-11-19 14:27:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2021-11-19 14:27:52,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2021-11-19 14:27:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-19 14:27:52,497 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-19 14:27:52,497 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:27:52,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:27:52,497 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-19 14:27:52,498 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-19 14:27:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:27:52,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 14:27:52,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 14:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 14:27:52,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 14:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:27:52,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:27:52,499 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:27:52,500 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2021-11-19 14:27:52,500 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2021-11-19 14:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:27:52,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2021-11-19 14:27:52,500 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2021-11-19 14:27:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:27:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:27:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2021-11-19 14:27:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2021-11-19 14:27:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:27:52,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:27:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:27:52,505 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-19 14:27:52,506 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-19 14:27:52,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:27:52,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:27:52,506 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-19 14:27:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-19 14:27:52,507 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 14:27:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 14:27:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_task_lock_of_rhine_private [2021-11-19 14:27:52,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_task_lock_of_rhine_private [2021-11-19 14:27:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2021-11-19 14:27:52,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2021-11-19 14:27:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2021-11-19 14:27:52,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2021-11-19 14:27:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2021-11-19 14:27:52,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2021-11-19 14:27:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2021-11-19 14:27:52,514 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2021-11-19 14:27:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-19 14:27:52,515 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-19 14:27:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:27:52,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:27:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:27:52,515 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:27:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 14:27:52,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 14:27:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2021-11-19 14:27:52,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2021-11-19 14:27:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2021-11-19 14:27:52,516 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2021-11-19 14:27:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 14:27:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 14:27:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-19 14:27:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-19 14:27:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2021-11-19 14:27:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2021-11-19 14:27:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2021-11-19 14:27:52,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2021-11-19 14:27:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:27:52,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:27:53,416 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:27:53,423 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:27:54,248 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:39:26,028 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:39:26,096 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:39:26,128 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:39:26,128 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-19 14:39:26,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:26 BoogieIcfgContainer [2021-11-19 14:39:26,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:39:26,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:39:26,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:39:26,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:39:26,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:27:46" (1/3) ... [2021-11-19 14:39:26,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee499ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:39:26, skipping insertion in model container [2021-11-19 14:39:26,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:27:51" (2/3) ... [2021-11-19 14:39:26,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee499ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:39:26, skipping insertion in model container [2021-11-19 14:39:26,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:26" (3/3) ... [2021-11-19 14:39:26,144 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:39:26,149 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:39:26,149 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:39:26,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:39:26,215 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:39:26,216 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:39:26,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 2217 states, 1510 states have (on average 1.276158940397351) internal successors, (1927), 1559 states have internal predecessors, (1927), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) [2021-11-19 14:39:26,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-19 14:39:26,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:26,317 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:26,318 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:39:26,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:26,322 INFO L85 PathProgramCache]: Analyzing trace with hash 611398623, now seen corresponding path program 1 times [2021-11-19 14:39:26,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:26,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892486915] [2021-11-19 14:39:26,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:26,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:26,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:26,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:26,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:39:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:29,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:39:29,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-19 14:39:30,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-19 14:39:31,137 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:31,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892486915] [2021-11-19 14:39:31,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892486915] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:31,140 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:31,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:39:31,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934253789] [2021-11-19 14:39:31,143 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:31,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:31,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:31,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:31,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:31,193 INFO L87 Difference]: Start difference. First operand has 2217 states, 1510 states have (on average 1.276158940397351) internal successors, (1927), 1559 states have internal predecessors, (1927), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:39:33,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:39:42,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:42,871 INFO L93 Difference]: Finished difference Result 8508 states and 12088 transitions. [2021-11-19 14:39:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:39:42,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 184 [2021-11-19 14:39:42,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:42,973 INFO L225 Difference]: With dead ends: 8508 [2021-11-19 14:39:42,973 INFO L226 Difference]: Without dead ends: 6301 [2021-11-19 14:39:43,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:43,007 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 7601 mSDsluCounter, 4678 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 1104 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7601 SdHoareTripleChecker+Valid, 8785 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1104 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:43,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7601 Valid, 8785 Invalid, 2296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1104 Valid, 1191 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2021-11-19 14:39:43,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6301 states. [2021-11-19 14:39:43,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6301 to 6283. [2021-11-19 14:39:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6283 states, 4282 states have (on average 1.262260625875759) internal successors, (5405), 4422 states have internal predecessors, (5405), 1636 states have call successors, (1636), 363 states have call predecessors, (1636), 362 states have return successors, (1632), 1593 states have call predecessors, (1632), 1632 states have call successors, (1632) [2021-11-19 14:39:43,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6283 states to 6283 states and 8673 transitions. [2021-11-19 14:39:43,634 INFO L78 Accepts]: Start accepts. Automaton has 6283 states and 8673 transitions. Word has length 184 [2021-11-19 14:39:43,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:43,639 INFO L470 AbstractCegarLoop]: Abstraction has 6283 states and 8673 transitions. [2021-11-19 14:39:43,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:39:43,640 INFO L276 IsEmpty]: Start isEmpty. Operand 6283 states and 8673 transitions. [2021-11-19 14:39:43,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-19 14:39:43,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:43,662 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:43,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:43,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:43,863 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:39:43,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:43,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1685749612, now seen corresponding path program 1 times [2021-11-19 14:39:43,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:43,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776701105] [2021-11-19 14:39:43,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:43,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:43,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:43,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:43,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:39:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:47,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 2303 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:39:47,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:47,869 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-19 14:39:47,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:48,357 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-19 14:39:48,357 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:48,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776701105] [2021-11-19 14:39:48,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776701105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:48,358 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:48,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:39:48,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740836106] [2021-11-19 14:39:48,358 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:48,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:48,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:48,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:48,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:48,363 INFO L87 Difference]: Start difference. First operand 6283 states and 8673 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:39:50,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:39:59,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:59,015 INFO L93 Difference]: Finished difference Result 23395 states and 32235 transitions. [2021-11-19 14:39:59,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:39:59,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 186 [2021-11-19 14:39:59,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:59,219 INFO L225 Difference]: With dead ends: 23395 [2021-11-19 14:39:59,220 INFO L226 Difference]: Without dead ends: 17145 [2021-11-19 14:39:59,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:59,275 INFO L933 BasicCegarLoop]: 4158 mSDtfsCounter, 5353 mSDsluCounter, 5294 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5353 SdHoareTripleChecker+Valid, 9452 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:59,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5353 Valid, 9452 Invalid, 1293 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1230 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-11-19 14:39:59,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17145 states. [2021-11-19 14:40:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17145 to 17099. [2021-11-19 14:40:00,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17099 states, 11554 states have (on average 1.2561017829323178) internal successors, (14513), 11928 states have internal predecessors, (14513), 4482 states have call successors, (4482), 1061 states have call predecessors, (4482), 1060 states have return successors, (4478), 4367 states have call predecessors, (4478), 4478 states have call successors, (4478) [2021-11-19 14:40:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17099 states to 17099 states and 23473 transitions. [2021-11-19 14:40:00,654 INFO L78 Accepts]: Start accepts. Automaton has 17099 states and 23473 transitions. Word has length 186 [2021-11-19 14:40:00,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:00,655 INFO L470 AbstractCegarLoop]: Abstraction has 17099 states and 23473 transitions. [2021-11-19 14:40:00,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:40:00,656 INFO L276 IsEmpty]: Start isEmpty. Operand 17099 states and 23473 transitions. [2021-11-19 14:40:00,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-19 14:40:00,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:00,661 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:00,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:00,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:00,882 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:40:00,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash 841264080, now seen corresponding path program 1 times [2021-11-19 14:40:00,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:00,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571559351] [2021-11-19 14:40:00,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:00,888 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:00,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:00,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:00,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:40:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:03,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 2286 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:03,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-19 14:40:04,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-19 14:40:04,873 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:04,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571559351] [2021-11-19 14:40:04,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571559351] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:04,876 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:04,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:40:04,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310392453] [2021-11-19 14:40:04,876 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:04,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:40:04,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:04,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:40:04,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:40:04,878 INFO L87 Difference]: Start difference. First operand 17099 states and 23473 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 14:40:07,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:40:08,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:08,948 INFO L93 Difference]: Finished difference Result 47805 states and 65552 transitions. [2021-11-19 14:40:08,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:40:08,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 188 [2021-11-19 14:40:08,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:09,473 INFO L225 Difference]: With dead ends: 47805 [2021-11-19 14:40:09,474 INFO L226 Difference]: Without dead ends: 30739 [2021-11-19 14:40:09,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:40:09,603 INFO L933 BasicCegarLoop]: 3475 mSDtfsCounter, 2439 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 6376 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:09,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2439 Valid, 6376 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-11-19 14:40:09,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30739 states. [2021-11-19 14:40:11,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30739 to 30704. [2021-11-19 14:40:11,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30704 states, 20602 states have (on average 1.2557518687506068) internal successors, (25871), 21312 states have internal predecessors, (25871), 8088 states have call successors, (8088), 2021 states have call predecessors, (8088), 2011 states have return successors, (8087), 7841 states have call predecessors, (8087), 8084 states have call successors, (8087) [2021-11-19 14:40:11,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30704 states to 30704 states and 42046 transitions. [2021-11-19 14:40:11,797 INFO L78 Accepts]: Start accepts. Automaton has 30704 states and 42046 transitions. Word has length 188 [2021-11-19 14:40:11,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:11,800 INFO L470 AbstractCegarLoop]: Abstraction has 30704 states and 42046 transitions. [2021-11-19 14:40:11,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 14:40:11,801 INFO L276 IsEmpty]: Start isEmpty. Operand 30704 states and 42046 transitions. [2021-11-19 14:40:11,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-19 14:40:11,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:11,807 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:11,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:12,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:12,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:40:12,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:12,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1356265204, now seen corresponding path program 1 times [2021-11-19 14:40:12,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:12,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616824507] [2021-11-19 14:40:12,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:12,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:12,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:12,034 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:12,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:40:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:15,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:15,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:16,164 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-19 14:40:16,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-19 14:40:16,667 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:16,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616824507] [2021-11-19 14:40:16,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616824507] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:16,667 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:16,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:40:16,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394184816] [2021-11-19 14:40:16,668 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:16,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:40:16,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:16,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:40:16,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:16,670 INFO L87 Difference]: Start difference. First operand 30704 states and 42046 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:40:19,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:40:26,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:26,745 INFO L93 Difference]: Finished difference Result 88227 states and 120400 transitions. [2021-11-19 14:40:26,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:40:26,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 198 [2021-11-19 14:40:26,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:27,260 INFO L225 Difference]: With dead ends: 88227 [2021-11-19 14:40:27,260 INFO L226 Difference]: Without dead ends: 57556 [2021-11-19 14:40:27,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:27,360 INFO L933 BasicCegarLoop]: 4420 mSDtfsCounter, 5397 mSDsluCounter, 5089 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5397 SdHoareTripleChecker+Valid, 9509 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:27,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5397 Valid, 9509 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1196 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-11-19 14:40:27,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57556 states. [2021-11-19 14:40:30,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57556 to 57502. [2021-11-19 14:40:30,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57502 states, 38461 states have (on average 1.2491354878968306) internal successors, (48043), 39787 states have internal predecessors, (48043), 15025 states have call successors, (15025), 4036 states have call predecessors, (15025), 4013 states have return successors, (15027), 14517 states have call predecessors, (15027), 15021 states have call successors, (15027) [2021-11-19 14:40:30,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57502 states to 57502 states and 78095 transitions. [2021-11-19 14:40:30,621 INFO L78 Accepts]: Start accepts. Automaton has 57502 states and 78095 transitions. Word has length 198 [2021-11-19 14:40:30,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:30,622 INFO L470 AbstractCegarLoop]: Abstraction has 57502 states and 78095 transitions. [2021-11-19 14:40:30,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:40:30,622 INFO L276 IsEmpty]: Start isEmpty. Operand 57502 states and 78095 transitions. [2021-11-19 14:40:30,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-19 14:40:30,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:30,629 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:30,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:30,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:30,842 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:40:30,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash 381536936, now seen corresponding path program 1 times [2021-11-19 14:40:30,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:30,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144455975] [2021-11-19 14:40:30,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:30,847 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:30,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:30,849 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:30,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:40:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:34,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:34,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-19 14:40:35,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:35,517 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-19 14:40:35,517 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:35,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144455975] [2021-11-19 14:40:35,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144455975] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:35,517 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:35,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:40:35,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050843970] [2021-11-19 14:40:35,518 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:35,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:40:35,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:35,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:40:35,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:35,522 INFO L87 Difference]: Start difference. First operand 57502 states and 78095 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:40:37,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:40:51,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:51,414 INFO L93 Difference]: Finished difference Result 221864 states and 301294 transitions. [2021-11-19 14:40:51,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:40:51,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 198 [2021-11-19 14:40:51,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:52,464 INFO L225 Difference]: With dead ends: 221864 [2021-11-19 14:40:52,464 INFO L226 Difference]: Without dead ends: 164395 [2021-11-19 14:40:52,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:52,919 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 7666 mSDsluCounter, 4753 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 1122 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7666 SdHoareTripleChecker+Valid, 8860 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1122 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:52,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7666 Valid, 8860 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1122 Valid, 1164 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-11-19 14:40:53,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164395 states. [2021-11-19 14:41:00,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164395 to 164289. [2021-11-19 14:41:00,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164289 states, 109813 states have (on average 1.2471292105670548) internal successors, (136951), 113695 states have internal predecessors, (136951), 42972 states have call successors, (42972), 11568 states have call predecessors, (42972), 11501 states have return successors, (42986), 41436 states have call predecessors, (42986), 42968 states have call successors, (42986) [2021-11-19 14:41:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164289 states to 164289 states and 222909 transitions. [2021-11-19 14:41:02,467 INFO L78 Accepts]: Start accepts. Automaton has 164289 states and 222909 transitions. Word has length 198 [2021-11-19 14:41:02,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:02,468 INFO L470 AbstractCegarLoop]: Abstraction has 164289 states and 222909 transitions. [2021-11-19 14:41:02,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:41:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 164289 states and 222909 transitions. [2021-11-19 14:41:02,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-19 14:41:02,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:02,476 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:02,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:02,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:02,690 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:41:02,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:02,691 INFO L85 PathProgramCache]: Analyzing trace with hash -59398483, now seen corresponding path program 1 times [2021-11-19 14:41:02,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:02,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052265861] [2021-11-19 14:41:02,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:02,695 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:02,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:02,695 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:02,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799663a8-7feb-4522-824e-cf32a7cf0b46/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:41:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:05,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 2391 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:05,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:06,146 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-19 14:41:06,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-19 14:41:06,758 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:06,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052265861] [2021-11-19 14:41:06,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052265861] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:06,759 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:06,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:41:06,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843754102] [2021-11-19 14:41:06,759 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:06,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:41:06,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:06,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:41:06,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:06,760 INFO L87 Difference]: Start difference. First operand 164289 states and 222909 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23)