./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:29:39,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:29:39,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:29:39,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:29:39,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:29:39,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:29:39,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:29:39,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:29:39,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:29:39,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:29:39,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:29:39,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:29:39,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:29:39,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:29:39,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:29:39,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:29:39,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:29:39,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:29:39,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:29:39,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:29:39,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:29:39,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:29:39,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:29:39,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:29:39,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:29:39,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:29:39,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:29:39,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:29:39,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:29:39,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:29:39,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:29:39,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:29:39,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:29:39,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:29:39,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:29:39,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:29:39,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:29:39,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:29:39,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:29:39,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:29:39,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:29:39,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:29:39,741 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:29:39,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:29:39,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:29:39,744 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:29:39,744 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:29:39,744 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:29:39,744 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:29:39,745 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:29:39,745 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:29:39,745 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:29:39,754 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:29:39,754 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:29:39,754 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:29:39,755 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:29:39,755 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:29:39,755 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:29:39,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:29:39,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:29:39,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:29:39,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:29:39,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:29:39,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:29:39,757 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:29:39,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:29:39,758 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:29:39,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:29:39,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:29:39,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:29:39,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:29:39,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:29:39,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:29:39,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:29:39,760 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:29:39,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:29:39,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:29:39,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:29:39,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:29:39,761 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_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 [2021-11-13 02:29:40,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:29:40,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:29:40,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:29:40,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:29:40,077 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:29:40,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2021-11-13 02:29:40,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data/b7107257d/836b8c9ee4704e8b891b2e1fa1d99cf3/FLAGe0b48c00a [2021-11-13 02:29:40,974 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:29:40,975 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2021-11-13 02:29:41,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data/b7107257d/836b8c9ee4704e8b891b2e1fa1d99cf3/FLAGe0b48c00a [2021-11-13 02:29:41,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data/b7107257d/836b8c9ee4704e8b891b2e1fa1d99cf3 [2021-11-13 02:29:41,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:29:41,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:29:41,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:29:41,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:29:41,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:29:41,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:29:41" (1/1) ... [2021-11-13 02:29:41,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c954a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:41, skipping insertion in model container [2021-11-13 02:29:41,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:29:41" (1/1) ... [2021-11-13 02:29:41,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:29:41,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:29:42,787 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:42,799 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:42,802 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:42,824 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:42,875 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:42,880 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:42,888 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:42,889 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:42,898 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:43,204 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:43,204 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:43,261 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:43,262 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:43,321 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:43,332 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:29:43,813 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2021-11-13 02:29:43,816 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2021-11-13 02:29:43,822 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2021-11-13 02:29:43,823 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2021-11-13 02:29:43,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:29:43,856 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) [2021-11-13 02:29:43,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58571539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:43, skipping insertion in model container [2021-11-13 02:29:43,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:29:43,859 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:29:43,862 INFO L158 Benchmark]: Toolchain (without parser) took 2412.34ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 59.2MB in the beginning and 103.7MB in the end (delta: -44.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-13 02:29:43,863 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:29:43,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2409.25ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 59.0MB in the beginning and 103.7MB in the end (delta: -44.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-13 02:29:43,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2409.25ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 59.0MB in the beginning and 103.7MB in the end (delta: -44.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6371]: 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_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:29:46,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:29:46,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:29:46,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:29:46,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:29:46,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:29:46,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:29:46,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:29:46,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:29:46,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:29:46,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:29:46,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:29:46,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:29:46,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:29:46,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:29:46,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:29:46,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:29:46,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:29:46,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:29:46,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:29:46,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:29:46,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:29:46,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:29:46,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:29:46,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:29:46,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:29:46,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:29:46,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:29:46,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:29:46,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:29:46,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:29:46,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:29:46,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:29:46,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:29:46,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:29:46,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:29:46,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:29:46,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:29:46,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:29:46,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:29:46,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:29:46,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:29:46,585 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:29:46,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:29:46,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:29:46,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:29:46,587 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:29:46,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:29:46,588 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:29:46,588 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:29:46,588 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:29:46,588 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:29:46,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:29:46,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:29:46,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:29:46,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:29:46,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:29:46,591 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:29:46,591 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:29:46,592 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:29:46,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:29:46,592 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:29:46,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:29:46,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:29:46,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:29:46,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:29:46,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:29:46,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:29:46,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:29:46,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:29:46,594 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:29:46,594 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:29:46,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:29:46,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:29:46,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:29:46,595 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_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 [2021-11-13 02:29:46,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:29:46,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:29:46,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:29:46,990 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:29:46,991 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:29:46,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2021-11-13 02:29:47,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data/5097fbd76/0dd6b0b515fb4aeebde121973291e556/FLAG62ce4b767 [2021-11-13 02:29:47,963 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:29:47,963 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2021-11-13 02:29:48,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data/5097fbd76/0dd6b0b515fb4aeebde121973291e556/FLAG62ce4b767 [2021-11-13 02:29:48,406 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/data/5097fbd76/0dd6b0b515fb4aeebde121973291e556 [2021-11-13 02:29:48,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:29:48,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:29:48,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:29:48,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:29:48,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:29:48,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:29:48" (1/1) ... [2021-11-13 02:29:48,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18408e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:48, skipping insertion in model container [2021-11-13 02:29:48,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:29:48" (1/1) ... [2021-11-13 02:29:48,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:29:48,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:29:50,873 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2021-11-13 02:29:50,875 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2021-11-13 02:29:50,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2021-11-13 02:29:50,886 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2021-11-13 02:29:50,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:29:50,929 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:29:50,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:29:51,360 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2021-11-13 02:29:51,361 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2021-11-13 02:29:51,362 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2021-11-13 02:29:51,363 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2021-11-13 02:29:51,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:29:51,393 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:29:51,787 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2021-11-13 02:29:51,787 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2021-11-13 02:29:51,788 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2021-11-13 02:29:51,789 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2021-11-13 02:29:51,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:29:51,971 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:29:51,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51 WrapperNode [2021-11-13 02:29:51,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:29:51,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:29:51,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:29:51,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:29:51,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:29:52,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:29:52,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:29:52,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:29:52,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:29:52,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:29:52,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:29:52,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:29:52,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2021-11-13 02:29:52,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:29:52,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:29:52,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:29:52,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:29:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:29:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 02:29:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 02:29:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:29:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-13 02:29:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:29:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 02:29:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 02:29:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 02:29:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 02:29:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 02:29:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:29:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:29:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-13 02:29:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-13 02:29:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_request [2021-11-13 02:29:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_request [2021-11-13 02:29:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-11-13 02:29:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-11-13 02:29:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 02:29:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 02:29:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_irq_unsubscribe [2021-11-13 02:29:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_irq_unsubscribe [2021-11-13 02:29:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-13 02:29:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-13 02:29:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_unlock [2021-11-13 02:29:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_unlock [2021-11-13 02:29:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:29:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:29:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-11-13 02:29:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-11-13 02:29:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:29:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2021-11-13 02:29:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2021-11-13 02:29:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:29:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 02:29:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 02:29:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 02:29:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 02:29:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hwbus_priv [2021-11-13 02:29:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hwbus_priv [2021-11-13 02:29:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:29:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:29:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 02:29:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:29:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:29:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:29:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~C_INT [2021-11-13 02:29:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~C_INT [2021-11-13 02:29:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-11-13 02:29:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-11-13 02:29:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:29:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:29:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-13 02:29:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-13 02:29:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 02:29:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 02:29:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-13 02:29:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-13 02:29:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 02:29:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 02:29:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_probe [2021-11-13 02:29:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_probe [2021-11-13 02:29:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 02:29:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 02:29:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2021-11-13 02:29:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2021-11-13 02:29:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:29:52,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:29:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 02:29:52,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 02:29:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 02:29:52,678 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 02:29:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_disconnect [2021-11-13 02:29:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_disconnect [2021-11-13 02:29:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 02:29:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 02:29:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-11-13 02:29:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-11-13 02:29:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_output [2021-11-13 02:29:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_output [2021-11-13 02:29:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 02:29:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 02:29:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_off [2021-11-13 02:29:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_off [2021-11-13 02:29:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:29:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 02:29:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 02:29:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 02:29:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 02:29:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-13 02:29:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-13 02:29:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 02:29:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 02:29:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:29:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 02:29:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-11-13 02:29:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-11-13 02:29:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:29:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:29:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-11-13 02:29:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-11-13 02:29:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 02:29:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 02:29:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 02:29:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 02:29:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_lock [2021-11-13 02:29:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_lock [2021-11-13 02:29:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 02:29:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 02:29:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_resume [2021-11-13 02:29:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_resume [2021-11-13 02:29:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2021-11-13 02:29:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2021-11-13 02:29:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_pm [2021-11-13 02:29:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_pm [2021-11-13 02:29:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 02:29:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 02:29:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:29:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:29:53,852 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 02:30:07,366 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 02:30:09,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:30:09,321 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 02:30:09,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:09 BoogieIcfgContainer [2021-11-13 02:30:09,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:30:09,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:30:09,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:30:09,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:30:09,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:29:48" (1/3) ... [2021-11-13 02:30:09,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@924760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:09, skipping insertion in model container [2021-11-13 02:30:09,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (2/3) ... [2021-11-13 02:30:09,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@924760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:09, skipping insertion in model container [2021-11-13 02:30:09,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:09" (3/3) ... [2021-11-13 02:30:09,335 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2021-11-13 02:30:09,341 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:30:09,342 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 02:30:09,408 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:30:09,416 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 [2021-11-13 02:30:09,416 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 02:30:09,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 1044 states, 748 states have (on average 1.2807486631016043) internal successors, (958), 758 states have internal predecessors, (958), 246 states have call successors, (246), 50 states have call predecessors, (246), 49 states have return successors, (237), 236 states have call predecessors, (237), 237 states have call successors, (237) [2021-11-13 02:30:09,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-13 02:30:09,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:09,497 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:09,497 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:30:09,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:09,504 INFO L85 PathProgramCache]: Analyzing trace with hash 946022056, now seen corresponding path program 1 times [2021-11-13 02:30:09,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:09,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131650615] [2021-11-13 02:30:09,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:09,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:09,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:09,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:09,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:30:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:10,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:30:10,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-13 02:30:11,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 02:30:12,134 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:12,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131650615] [2021-11-13 02:30:12,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131650615] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:12,144 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:12,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:30:12,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357783171] [2021-11-13 02:30:12,149 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:12,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:30:12,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:12,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:30:12,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:30:12,211 INFO L87 Difference]: Start difference. First operand has 1044 states, 748 states have (on average 1.2807486631016043) internal successors, (958), 758 states have internal predecessors, (958), 246 states have call successors, (246), 50 states have call predecessors, (246), 49 states have return successors, (237), 236 states have call predecessors, (237), 237 states have call successors, (237) Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 02:30:14,302 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 [] [2021-11-13 02:30:21,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:21,262 INFO L93 Difference]: Finished difference Result 3626 states and 5100 transitions. [2021-11-13 02:30:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:30:21,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2021-11-13 02:30:21,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:21,326 INFO L225 Difference]: With dead ends: 3626 [2021-11-13 02:30:21,326 INFO L226 Difference]: Without dead ends: 2582 [2021-11-13 02:30:21,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:30:21,347 INFO L933 BasicCegarLoop]: 1806 mSDtfsCounter, 3029 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 421 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7914.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.87ms SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8568.82ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:21,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3029 Valid, 3695 Invalid, 1034 Unknown, 0 Unchecked, 51.87ms Time], IncrementalHoareTripleChecker [421 Valid, 612 Invalid, 1 Unknown, 0 Unchecked, 8568.82ms Time] [2021-11-13 02:30:21,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2582 states. [2021-11-13 02:30:21,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2582 to 2528. [2021-11-13 02:30:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 1814 states have (on average 1.2480705622932746) internal successors, (2264), 1854 states have internal predecessors, (2264), 573 states have call successors, (573), 139 states have call predecessors, (573), 138 states have return successors, (569), 558 states have call predecessors, (569), 569 states have call successors, (569) [2021-11-13 02:30:21,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3406 transitions. [2021-11-13 02:30:21,721 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 3406 transitions. Word has length 151 [2021-11-13 02:30:21,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:21,727 INFO L470 AbstractCegarLoop]: Abstraction has 2528 states and 3406 transitions. [2021-11-13 02:30:21,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 02:30:21,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 3406 transitions. [2021-11-13 02:30:21,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-13 02:30:21,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:21,745 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:21,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:21,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:21,970 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:30:21,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash 666682290, now seen corresponding path program 1 times [2021-11-13 02:30:21,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:21,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144105158] [2021-11-13 02:30:21,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:21,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:21,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:21,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:22,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:30:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:22,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:30:22,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-13 02:30:23,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:24,076 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 02:30:24,077 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:24,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144105158] [2021-11-13 02:30:24,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144105158] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:24,080 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:24,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:30:24,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694459292] [2021-11-13 02:30:24,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:24,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:30:24,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:24,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:30:24,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:30:24,086 INFO L87 Difference]: Start difference. First operand 2528 states and 3406 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-13 02:30:26,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:30:32,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:32,007 INFO L93 Difference]: Finished difference Result 9629 states and 12963 transitions. [2021-11-13 02:30:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:30:32,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 151 [2021-11-13 02:30:32,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:32,081 INFO L225 Difference]: With dead ends: 9629 [2021-11-13 02:30:32,086 INFO L226 Difference]: Without dead ends: 7128 [2021-11-13 02:30:32,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:30:32,106 INFO L933 BasicCegarLoop]: 1758 mSDtfsCounter, 2545 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6982.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2545 SdHoareTripleChecker+Valid, 4536 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.29ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7309.37ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:32,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2545 Valid, 4536 Invalid, 519 Unknown, 0 Unchecked, 29.29ms Time], IncrementalHoareTripleChecker [26 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 7309.37ms Time] [2021-11-13 02:30:32,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7128 states. [2021-11-13 02:30:32,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7128 to 7102. [2021-11-13 02:30:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7102 states, 5140 states have (on average 1.2511673151750973) internal successors, (6431), 5238 states have internal predecessors, (6431), 1553 states have call successors, (1553), 407 states have call predecessors, (1553), 406 states have return successors, (1549), 1528 states have call predecessors, (1549), 1549 states have call successors, (1549) [2021-11-13 02:30:32,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7102 states to 7102 states and 9533 transitions. [2021-11-13 02:30:32,749 INFO L78 Accepts]: Start accepts. Automaton has 7102 states and 9533 transitions. Word has length 151 [2021-11-13 02:30:32,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:32,754 INFO L470 AbstractCegarLoop]: Abstraction has 7102 states and 9533 transitions. [2021-11-13 02:30:32,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-13 02:30:32,755 INFO L276 IsEmpty]: Start isEmpty. Operand 7102 states and 9533 transitions. [2021-11-13 02:30:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-13 02:30:32,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:32,762 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:32,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:32,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:32,986 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:30:32,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:32,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1214873792, now seen corresponding path program 1 times [2021-11-13 02:30:32,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:32,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116161793] [2021-11-13 02:30:32,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:32,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:32,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:32,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:32,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:30:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:33,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:30:33,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-13 02:30:34,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 02:30:35,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:35,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116161793] [2021-11-13 02:30:35,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116161793] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:35,162 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:35,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:30:35,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825651683] [2021-11-13 02:30:35,163 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:35,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:30:35,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:35,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:30:35,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:30:35,165 INFO L87 Difference]: Start difference. First operand 7102 states and 9533 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 02:30:37,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:30:38,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:38,165 INFO L93 Difference]: Finished difference Result 18035 states and 24165 transitions. [2021-11-13 02:30:38,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:30:38,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 157 [2021-11-13 02:30:38,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:38,292 INFO L225 Difference]: With dead ends: 18035 [2021-11-13 02:30:38,292 INFO L226 Difference]: Without dead ends: 10960 [2021-11-13 02:30:38,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:30:38,337 INFO L933 BasicCegarLoop]: 1581 mSDtfsCounter, 1164 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2400.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.30ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2434.99ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:38,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 2916 Invalid, 46 Unknown, 0 Unchecked, 13.30ms Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 2434.99ms Time] [2021-11-13 02:30:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10960 states. [2021-11-13 02:30:39,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10960 to 10929. [2021-11-13 02:30:39,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10929 states, 7890 states have (on average 1.2443599493029152) internal successors, (9818), 8061 states have internal predecessors, (9818), 2386 states have call successors, (2386), 651 states have call predecessors, (2386), 650 states have return successors, (2382), 2336 states have call predecessors, (2382), 2382 states have call successors, (2382) [2021-11-13 02:30:39,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10929 states to 10929 states and 14586 transitions. [2021-11-13 02:30:39,234 INFO L78 Accepts]: Start accepts. Automaton has 10929 states and 14586 transitions. Word has length 157 [2021-11-13 02:30:39,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:39,236 INFO L470 AbstractCegarLoop]: Abstraction has 10929 states and 14586 transitions. [2021-11-13 02:30:39,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 02:30:39,237 INFO L276 IsEmpty]: Start isEmpty. Operand 10929 states and 14586 transitions. [2021-11-13 02:30:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-13 02:30:39,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:39,242 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:39,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:39,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:39,458 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:30:39,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:39,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1153141611, now seen corresponding path program 1 times [2021-11-13 02:30:39,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:39,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010115093] [2021-11-13 02:30:39,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:39,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:39,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:39,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:39,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:30:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:40,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:30:40,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-13 02:30:40,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 02:30:41,414 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:41,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010115093] [2021-11-13 02:30:41,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010115093] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:41,415 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:41,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:30:41,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588289358] [2021-11-13 02:30:41,416 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:41,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:30:41,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:41,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:30:41,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:30:41,417 INFO L87 Difference]: Start difference. First operand 10929 states and 14586 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 02:30:43,488 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 [] [2021-11-13 02:30:50,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:50,872 INFO L93 Difference]: Finished difference Result 41403 states and 56286 transitions. [2021-11-13 02:30:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:30:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 163 [2021-11-13 02:30:50,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:51,242 INFO L225 Difference]: With dead ends: 41403 [2021-11-13 02:30:51,242 INFO L226 Difference]: Without dead ends: 30501 [2021-11-13 02:30:51,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:30:51,296 INFO L933 BasicCegarLoop]: 1871 mSDtfsCounter, 3564 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 470 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7750.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3564 SdHoareTripleChecker+Valid, 4033 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.36ms SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8262.31ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:51,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3564 Valid, 4033 Invalid, 981 Unknown, 0 Unchecked, 28.36ms Time], IncrementalHoareTripleChecker [470 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 8262.31ms Time] [2021-11-13 02:30:51,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30501 states. [2021-11-13 02:30:52,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30501 to 30391. [2021-11-13 02:30:52,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30391 states, 21952 states have (on average 1.2515032798833818) internal successors, (27473), 22521 states have internal predecessors, (27473), 6674 states have call successors, (6674), 1823 states have call predecessors, (6674), 1762 states have return successors, (7390), 6346 states have call predecessors, (7390), 6670 states have call successors, (7390) [2021-11-13 02:30:53,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30391 states to 30391 states and 41537 transitions. [2021-11-13 02:30:53,091 INFO L78 Accepts]: Start accepts. Automaton has 30391 states and 41537 transitions. Word has length 163 [2021-11-13 02:30:53,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:53,091 INFO L470 AbstractCegarLoop]: Abstraction has 30391 states and 41537 transitions. [2021-11-13 02:30:53,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 02:30:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 30391 states and 41537 transitions. [2021-11-13 02:30:53,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-13 02:30:53,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:53,108 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 02:30:53,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:53,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:53,327 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:30:53,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:53,327 INFO L85 PathProgramCache]: Analyzing trace with hash 569844985, now seen corresponding path program 1 times [2021-11-13 02:30:53,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:53,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060167058] [2021-11-13 02:30:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:53,328 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:53,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:53,329 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:53,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:30:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:53,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:30:53,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-13 02:30:54,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-11-13 02:30:55,448 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:55,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060167058] [2021-11-13 02:30:55,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060167058] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:30:55,448 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:30:55,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:30:55,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441918282] [2021-11-13 02:30:55,449 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:55,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:30:55,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:55,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:30:55,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:30:55,450 INFO L87 Difference]: Start difference. First operand 30391 states and 41537 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 02:30:57,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:31:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:03,384 INFO L93 Difference]: Finished difference Result 102117 states and 138653 transitions. [2021-11-13 02:31:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:31:03,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 193 [2021-11-13 02:31:03,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:03,742 INFO L225 Difference]: With dead ends: 102117 [2021-11-13 02:31:03,742 INFO L226 Difference]: Without dead ends: 71753 [2021-11-13 02:31:03,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:31:03,866 INFO L933 BasicCegarLoop]: 2013 mSDtfsCounter, 2556 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5588.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2556 SdHoareTripleChecker+Valid, 4310 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.67ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5830.18ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:03,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2556 Valid, 4310 Invalid, 559 Unknown, 0 Unchecked, 14.67ms Time], IncrementalHoareTripleChecker [35 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 5830.18ms Time] [2021-11-13 02:31:03,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71753 states. [2021-11-13 02:31:07,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71753 to 71631. [2021-11-13 02:31:07,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71631 states, 51871 states have (on average 1.2414258448844249) internal successors, (64394), 53281 states have internal predecessors, (64394), 15377 states have call successors, (15377), 4529 states have call predecessors, (15377), 4380 states have return successors, (16819), 14560 states have call predecessors, (16819), 15373 states have call successors, (16819) [2021-11-13 02:31:08,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71631 states to 71631 states and 96590 transitions. [2021-11-13 02:31:08,230 INFO L78 Accepts]: Start accepts. Automaton has 71631 states and 96590 transitions. Word has length 193 [2021-11-13 02:31:08,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:08,231 INFO L470 AbstractCegarLoop]: Abstraction has 71631 states and 96590 transitions. [2021-11-13 02:31:08,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 02:31:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 71631 states and 96590 transitions. [2021-11-13 02:31:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-13 02:31:08,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:08,237 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:08,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:08,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:08,454 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:31:08,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:08,455 INFO L85 PathProgramCache]: Analyzing trace with hash 194733257, now seen corresponding path program 1 times [2021-11-13 02:31:08,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:08,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395027017] [2021-11-13 02:31:08,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:31:08,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:08,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:08,458 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:08,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:31:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:31:09,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:31:09,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:11,836 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-11-13 02:31:11,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:13,187 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-11-13 02:31:13,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:13,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395027017] [2021-11-13 02:31:13,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395027017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:31:13,188 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:31:13,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-13 02:31:13,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17765361] [2021-11-13 02:31:13,188 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:13,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:31:13,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:13,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:31:13,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:31:13,190 INFO L87 Difference]: Start difference. First operand 71631 states and 96590 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-13 02:31:16,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:16,068 INFO L93 Difference]: Finished difference Result 71637 states and 96595 transitions. [2021-11-13 02:31:16,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:31:16,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 209 [2021-11-13 02:31:16,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:16,486 INFO L225 Difference]: With dead ends: 71637 [2021-11-13 02:31:16,487 INFO L226 Difference]: Without dead ends: 71635 [2021-11-13 02:31:16,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:31:16,516 INFO L933 BasicCegarLoop]: 1371 mSDtfsCounter, 1281 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 4101 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.34ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 147.58ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:16,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1292 Valid, 4101 Invalid, 21 Unknown, 0 Unchecked, 16.34ms Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 147.58ms Time] [2021-11-13 02:31:16,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71635 states. [2021-11-13 02:31:20,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71635 to 71635. [2021-11-13 02:31:20,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71635 states, 51874 states have (on average 1.2414118826387015) internal successors, (64397), 53284 states have internal predecessors, (64397), 15377 states have call successors, (15377), 4530 states have call predecessors, (15377), 4381 states have return successors, (16819), 14560 states have call predecessors, (16819), 15373 states have call successors, (16819) [2021-11-13 02:31:20,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71635 states to 71635 states and 96593 transitions. [2021-11-13 02:31:20,979 INFO L78 Accepts]: Start accepts. Automaton has 71635 states and 96593 transitions. Word has length 209 [2021-11-13 02:31:20,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:20,980 INFO L470 AbstractCegarLoop]: Abstraction has 71635 states and 96593 transitions. [2021-11-13 02:31:20,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-13 02:31:20,981 INFO L276 IsEmpty]: Start isEmpty. Operand 71635 states and 96593 transitions. [2021-11-13 02:31:20,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-13 02:31:20,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:20,993 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:21,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:21,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:21,219 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:31:21,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:21,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1469888503, now seen corresponding path program 1 times [2021-11-13 02:31:21,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:21,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766013157] [2021-11-13 02:31:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:31:21,221 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:21,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:21,222 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:21,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:31:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:31:21,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:31:21,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-11-13 02:31:24,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-11-13 02:31:26,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:26,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766013157] [2021-11-13 02:31:26,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766013157] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:31:26,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:31:26,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:31:26,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521220098] [2021-11-13 02:31:26,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:26,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:31:26,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:26,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:31:26,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:31:26,418 INFO L87 Difference]: Start difference. First operand 71635 states and 96593 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 02:31:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:29,711 INFO L93 Difference]: Finished difference Result 71641 states and 96598 transitions. [2021-11-13 02:31:29,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:31:29,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 214 [2021-11-13 02:31:29,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:30,148 INFO L225 Difference]: With dead ends: 71641 [2021-11-13 02:31:30,148 INFO L226 Difference]: Without dead ends: 71639 [2021-11-13 02:31:30,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:31:30,184 INFO L933 BasicCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.38ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.75ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:30,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 9.38ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 146.75ms Time] [2021-11-13 02:31:30,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71639 states. [2021-11-13 02:31:34,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71639 to 71639. [2021-11-13 02:31:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71639 states, 51877 states have (on average 1.2413979220078262) internal successors, (64400), 53287 states have internal predecessors, (64400), 15377 states have call successors, (15377), 4531 states have call predecessors, (15377), 4382 states have return successors, (16819), 14560 states have call predecessors, (16819), 15373 states have call successors, (16819) [2021-11-13 02:31:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71639 states to 71639 states and 96596 transitions. [2021-11-13 02:31:34,506 INFO L78 Accepts]: Start accepts. Automaton has 71639 states and 96596 transitions. Word has length 214 [2021-11-13 02:31:34,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:34,507 INFO L470 AbstractCegarLoop]: Abstraction has 71639 states and 96596 transitions. [2021-11-13 02:31:34,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 02:31:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 71639 states and 96596 transitions. [2021-11-13 02:31:34,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-13 02:31:34,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:34,513 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:34,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:34,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:34,726 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:31:34,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:34,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1427327305, now seen corresponding path program 1 times [2021-11-13 02:31:34,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:34,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328544572] [2021-11-13 02:31:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:31:34,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:34,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:34,730 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:34,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:31:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:31:35,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:31:35,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-11-13 02:31:39,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-11-13 02:31:40,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:40,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328544572] [2021-11-13 02:31:40,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328544572] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:31:40,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:31:40,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:31:40,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447911346] [2021-11-13 02:31:40,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:40,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:31:40,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:40,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:31:40,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:31:40,679 INFO L87 Difference]: Start difference. First operand 71639 states and 96596 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 02:31:44,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:44,110 INFO L93 Difference]: Finished difference Result 71645 states and 96601 transitions. [2021-11-13 02:31:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:31:44,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 219 [2021-11-13 02:31:44,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:44,509 INFO L225 Difference]: With dead ends: 71645 [2021-11-13 02:31:44,509 INFO L226 Difference]: Without dead ends: 71643 [2021-11-13 02:31:44,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:31:44,542 INFO L933 BasicCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 156.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.12ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163.49ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:44,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1314 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 10.12ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 163.49ms Time] [2021-11-13 02:31:44,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71643 states. [2021-11-13 02:31:48,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71643 to 71643. [2021-11-13 02:31:48,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71643 states, 51880 states have (on average 1.2413839629915189) internal successors, (64403), 53290 states have internal predecessors, (64403), 15377 states have call successors, (15377), 4532 states have call predecessors, (15377), 4383 states have return successors, (16819), 14560 states have call predecessors, (16819), 15373 states have call successors, (16819) [2021-11-13 02:31:49,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71643 states to 71643 states and 96599 transitions. [2021-11-13 02:31:49,260 INFO L78 Accepts]: Start accepts. Automaton has 71643 states and 96599 transitions. Word has length 219 [2021-11-13 02:31:49,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:49,261 INFO L470 AbstractCegarLoop]: Abstraction has 71643 states and 96599 transitions. [2021-11-13 02:31:49,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 02:31:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 71643 states and 96599 transitions. [2021-11-13 02:31:49,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-13 02:31:49,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:49,269 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:49,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:49,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:49,486 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:31:49,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:49,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1436813719, now seen corresponding path program 1 times [2021-11-13 02:31:49,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:49,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529606023] [2021-11-13 02:31:49,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:31:49,487 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:49,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:49,488 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:49,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe32324d-f58f-4adc-a671-164528fa99f4/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 02:31:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:31:50,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:31:50,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:50,910 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-11-13 02:31:50,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:51,545 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-11-13 02:31:51,545 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:51,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529606023] [2021-11-13 02:31:51,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529606023] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:31:51,545 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:31:51,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:31:51,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779699472] [2021-11-13 02:31:51,546 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:51,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:31:51,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:51,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:31:51,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:31:51,547 INFO L87 Difference]: Start difference. First operand 71643 states and 96599 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-13 02:31:53,903 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 []