./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-usb-smsc95xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8 --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 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:05:10,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:05:10,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:05:10,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:05:10,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:05:10,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:05:10,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:05:10,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:05:10,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:05:10,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:05:10,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:05:10,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:05:10,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:05:10,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:05:10,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:05:10,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:05:10,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:05:10,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:05:10,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:05:10,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:05:10,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:05:10,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:05:10,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:05:10,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:05:10,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:05:10,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:05:10,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:05:10,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:05:10,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:05:10,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:05:10,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:05:10,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:05:10,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:05:10,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:05:10,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:05:10,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:05:10,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:05:10,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:05:10,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:05:10,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:05:10,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:05:10,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:05:10,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:05:10,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:05:10,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:05:10,968 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:05:10,968 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:05:10,968 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:05:10,969 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:05:10,969 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:05:10,969 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:05:10,969 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:05:10,970 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:05:10,970 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:05:10,970 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:05:10,970 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:05:10,971 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:05:10,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:05:10,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:05:10,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:05:10,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:05:10,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:05:10,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:05:10,972 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:05:10,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:05:10,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:05:10,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:05:10,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:05:10,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:05:10,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:05:10,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:05:10,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:05:10,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:05:10,974 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:05:10,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:05:10,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:05:10,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:05:10,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:05:10,975 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_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2021-11-07 01:05:11,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:05:11,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:05:11,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:05:11,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:05:11,304 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:05:11,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2021-11-07 01:05:11,386 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data/95ece0c6c/bb107450deea461abb28e1edab9715ac/FLAGcf7ff522b [2021-11-07 01:05:12,522 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:05:12,524 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2021-11-07 01:05:12,633 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data/95ece0c6c/bb107450deea461abb28e1edab9715ac/FLAGcf7ff522b [2021-11-07 01:05:12,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data/95ece0c6c/bb107450deea461abb28e1edab9715ac [2021-11-07 01:05:12,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:05:12,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:05:12,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:05:12,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:05:12,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:05:12,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:12" (1/1) ... [2021-11-07 01:05:12,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@140b1ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:12, skipping insertion in model container [2021-11-07 01:05:12,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:12" (1/1) ... [2021-11-07 01:05:12,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:05:13,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:05:14,722 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:05:14,724 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:05:16,124 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2021-11-07 01:05:16,126 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2021-11-07 01:05:16,127 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2021-11-07 01:05:16,128 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2021-11-07 01:05:16,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:05:16,222 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) [2021-11-07 01:05:16,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48dd52ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:16, skipping insertion in model container [2021-11-07 01:05:16,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:05:16,224 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:05:16,226 INFO L168 Benchmark]: Toolchain (without parser) took 3404.73 ms. Allocated memory was 119.5 MB in the beginning and 159.4 MB in the end (delta: 39.8 MB). Free memory was 92.2 MB in the beginning and 97.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:05:16,227 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 119.5 MB. Free memory was 99.2 MB in the beginning and 99.1 MB in the end (delta: 56.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:05:16,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3401.97 ms. Allocated memory was 119.5 MB in the beginning and 159.4 MB in the end (delta: 39.8 MB). Free memory was 92.2 MB in the beginning and 97.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:05:16,231 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 119.5 MB. Free memory was 99.2 MB in the beginning and 99.1 MB in the end (delta: 56.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3401.97 ms. Allocated memory was 119.5 MB in the beginning and 159.4 MB in the end (delta: 39.8 MB). Free memory was 92.2 MB in the beginning and 97.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5624]: 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_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8 --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 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:05:18,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:05:18,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:05:18,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:05:18,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:05:18,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:05:18,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:05:18,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:05:18,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:05:18,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:05:18,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:05:18,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:05:18,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:05:18,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:05:18,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:05:18,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:05:18,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:05:18,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:05:18,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:05:18,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:05:18,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:05:18,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:05:18,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:05:18,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:05:18,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:05:18,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:05:18,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:05:18,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:05:18,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:05:18,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:05:18,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:05:18,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:05:18,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:05:18,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:05:18,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:05:18,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:05:18,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:05:18,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:05:18,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:05:18,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:05:18,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:05:18,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:05:18,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:05:18,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:05:18,809 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:05:18,809 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:05:18,809 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:05:18,810 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:05:18,810 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:05:18,810 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:05:18,811 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:05:18,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:05:18,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:05:18,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:05:18,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:05:18,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:05:18,815 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:05:18,815 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:05:18,816 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:05:18,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:05:18,816 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:05:18,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:05:18,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:05:18,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:05:18,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:05:18,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:05:18,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:05:18,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:05:18,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:05:18,819 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:05:18,820 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:05:18,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:05:18,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:05:18,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:05:18,821 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_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2021-11-07 01:05:19,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:05:19,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:05:19,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:05:19,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:05:19,298 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:05:19,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2021-11-07 01:05:19,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data/a7291d916/ae83e7615b1947b1a252e9f9f06483f3/FLAG780ea2d16 [2021-11-07 01:05:20,613 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:05:20,615 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2021-11-07 01:05:20,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data/a7291d916/ae83e7615b1947b1a252e9f9f06483f3/FLAG780ea2d16 [2021-11-07 01:05:20,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/data/a7291d916/ae83e7615b1947b1a252e9f9f06483f3 [2021-11-07 01:05:20,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:05:20,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:05:20,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:05:20,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:05:20,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:05:20,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:20" (1/1) ... [2021-11-07 01:05:20,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624f078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:20, skipping insertion in model container [2021-11-07 01:05:20,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:20" (1/1) ... [2021-11-07 01:05:20,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:05:21,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:05:23,930 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2021-11-07 01:05:23,932 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2021-11-07 01:05:23,933 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2021-11-07 01:05:23,934 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2021-11-07 01:05:23,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:05:23,997 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:05:24,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:05:24,430 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2021-11-07 01:05:24,430 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2021-11-07 01:05:24,431 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2021-11-07 01:05:24,431 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2021-11-07 01:05:24,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:05:24,495 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:05:24,827 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2021-11-07 01:05:24,827 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2021-11-07 01:05:24,828 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2021-11-07 01:05:24,828 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_73c47f26-2083-47c1-8c80-0452b3be4e89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2021-11-07 01:05:24,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:05:25,129 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:05:25,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25 WrapperNode [2021-11-07 01:05:25,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:05:25,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:05:25,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:05:25,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:05:25,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:25,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:26,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:05:26,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:05:26,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:05:26,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:05:26,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:26,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:27,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:27,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:28,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:28,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:28,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:28,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:05:28,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:05:28,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:05:28,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:05:28,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (1/1) ... [2021-11-07 01:05:28,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:05:28,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:05:29,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:05:29,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:05:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2021-11-07 01:05:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:05:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 01:05:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:05:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:05:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:05:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-11-07 01:05:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2021-11-07 01:05:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:05:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:05:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:05:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:05:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:05:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:05:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:05:29,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:05:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:05:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:05:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:05:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:05:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:05:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:05:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:05:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:05:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:05:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:05:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:05:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:05:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:05:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:05:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:05:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:05:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:05:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-11-07 01:09:12,695 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 01:09:12,696 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 01:09:12,697 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 01:09:12,699 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-07 01:09:12,700 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 01:09:12,702 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 01:09:12,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:09:12,788 INFO L299 CfgBuilder]: Removed 6065 assume(true) statements. [2021-11-07 01:09:12,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:12 BoogieIcfgContainer [2021-11-07 01:09:12,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:09:12,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:09:12,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:09:12,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:09:12,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:05:20" (1/3) ... [2021-11-07 01:09:12,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f8fb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:12, skipping insertion in model container [2021-11-07 01:09:12,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:25" (2/3) ... [2021-11-07 01:09:12,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f8fb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:12, skipping insertion in model container [2021-11-07 01:09:12,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:12" (3/3) ... [2021-11-07 01:09:12,807 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2021-11-07 01:09:12,812 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:09:12,813 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2021-11-07 01:09:12,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:09:12,901 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 [2021-11-07 01:09:12,902 INFO L340 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2021-11-07 01:09:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 8717 states, 8647 states have (on average 1.456227593384989) internal successors, (12592), 8716 states have internal predecessors, (12592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 01:09:13,057 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:13,058 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:09:13,059 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 01:09:13,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:13,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1169077711, now seen corresponding path program 1 times [2021-11-07 01:09:13,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:13,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262670527] [2021-11-07 01:09:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:13,091 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:13,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:13,097 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:13,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:09:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:19,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 2155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:09:19,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:20,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:20,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:20,397 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:20,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262670527] [2021-11-07 01:09:20,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262670527] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:20,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:20,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:09:20,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764493293] [2021-11-07 01:09:20,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:09:20,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:20,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:09:20,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:09:20,452 INFO L87 Difference]: Start difference. First operand has 8717 states, 8647 states have (on average 1.456227593384989) internal successors, (12592), 8716 states have internal predecessors, (12592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:24,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:24,517 INFO L93 Difference]: Finished difference Result 33866 states and 49088 transitions. [2021-11-07 01:09:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:09:24,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 01:09:24,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:24,734 INFO L225 Difference]: With dead ends: 33866 [2021-11-07 01:09:24,735 INFO L226 Difference]: Without dead ends: 25048 [2021-11-07 01:09:24,769 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:09:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25048 states. [2021-11-07 01:09:25,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25048 to 24912. [2021-11-07 01:09:25,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24912 states, 24842 states have (on average 1.398760164237984) internal successors, (34748), 24911 states have internal predecessors, (34748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24912 states to 24912 states and 34748 transitions. [2021-11-07 01:09:25,893 INFO L78 Accepts]: Start accepts. Automaton has 24912 states and 34748 transitions. Word has length 72 [2021-11-07 01:09:25,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:25,894 INFO L470 AbstractCegarLoop]: Abstraction has 24912 states and 34748 transitions. [2021-11-07 01:09:25,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 24912 states and 34748 transitions. [2021-11-07 01:09:25,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 01:09:25,903 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:25,904 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:09:25,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:26,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:26,119 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 01:09:26,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash -246882127, now seen corresponding path program 1 times [2021-11-07 01:09:26,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:26,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617135930] [2021-11-07 01:09:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:26,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:26,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:26,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:26,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:09:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:32,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 2190 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:09:32,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:33,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:33,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:33,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:33,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:33,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617135930] [2021-11-07 01:09:33,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617135930] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:33,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:33,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:09:33,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166845387] [2021-11-07 01:09:33,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:09:33,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:33,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:09:33,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:09:33,467 INFO L87 Difference]: Start difference. First operand 24912 states and 34748 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:37,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:37,816 INFO L93 Difference]: Finished difference Result 56392 states and 78680 transitions. [2021-11-07 01:09:37,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:09:37,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 01:09:37,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:37,937 INFO L225 Difference]: With dead ends: 56392 [2021-11-07 01:09:37,937 INFO L226 Difference]: Without dead ends: 31628 [2021-11-07 01:09:37,983 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:09:38,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31628 states. [2021-11-07 01:09:39,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31628 to 31454. [2021-11-07 01:09:39,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31454 states, 31384 states have (on average 1.400172062197298) internal successors, (43943), 31453 states have internal predecessors, (43943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:39,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31454 states to 31454 states and 43943 transitions. [2021-11-07 01:09:39,234 INFO L78 Accepts]: Start accepts. Automaton has 31454 states and 43943 transitions. Word has length 86 [2021-11-07 01:09:39,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:39,238 INFO L470 AbstractCegarLoop]: Abstraction has 31454 states and 43943 transitions. [2021-11-07 01:09:39,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:39,238 INFO L276 IsEmpty]: Start isEmpty. Operand 31454 states and 43943 transitions. [2021-11-07 01:09:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 01:09:39,244 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:39,244 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:09:39,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:39,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:39,446 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 01:09:39,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:39,446 INFO L85 PathProgramCache]: Analyzing trace with hash -645783363, now seen corresponding path program 1 times [2021-11-07 01:09:39,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:39,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478024891] [2021-11-07 01:09:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:39,464 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:39,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:39,465 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:39,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:09:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:46,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 2250 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:09:46,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:46,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:46,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:46,855 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:46,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478024891] [2021-11-07 01:09:46,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478024891] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:46,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:46,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:09:46,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214489931] [2021-11-07 01:09:46,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:09:46,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:46,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:09:46,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:09:46,999 INFO L87 Difference]: Start difference. First operand 31454 states and 43943 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:51,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:51,048 INFO L93 Difference]: Finished difference Result 86825 states and 121361 transitions. [2021-11-07 01:09:51,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:09:51,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-07 01:09:51,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:51,274 INFO L225 Difference]: With dead ends: 86825 [2021-11-07 01:09:51,274 INFO L226 Difference]: Without dead ends: 63132 [2021-11-07 01:09:51,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:09:51,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63132 states. [2021-11-07 01:09:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63132 to 62996. [2021-11-07 01:09:53,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62996 states, 62926 states have (on average 1.401376219686616) internal successors, (88183), 62995 states have internal predecessors, (88183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:53,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62996 states to 62996 states and 88183 transitions. [2021-11-07 01:09:53,772 INFO L78 Accepts]: Start accepts. Automaton has 62996 states and 88183 transitions. Word has length 105 [2021-11-07 01:09:53,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:53,775 INFO L470 AbstractCegarLoop]: Abstraction has 62996 states and 88183 transitions. [2021-11-07 01:09:53,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:53,777 INFO L276 IsEmpty]: Start isEmpty. Operand 62996 states and 88183 transitions. [2021-11-07 01:09:53,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-07 01:09:53,790 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:53,791 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2021-11-07 01:09:53,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:54,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:54,015 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 01:09:54,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash 416925785, now seen corresponding path program 1 times [2021-11-07 01:09:54,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:54,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616391518] [2021-11-07 01:09:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:54,039 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:54,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:54,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:54,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:10:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:00,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 2224 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:10:00,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:01,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:02,867 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:02,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616391518] [2021-11-07 01:10:02,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616391518] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:02,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:02,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:10:02,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891275546] [2021-11-07 01:10:02,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:10:02,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:02,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:10:02,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:10:02,871 INFO L87 Difference]: Start difference. First operand 62996 states and 88183 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:05,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:10:05,242 INFO L93 Difference]: Finished difference Result 62996 states and 88183 transitions. [2021-11-07 01:10:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:10:05,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-07 01:10:05,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:10:05,394 INFO L225 Difference]: With dead ends: 62996 [2021-11-07 01:10:05,394 INFO L226 Difference]: Without dead ends: 62990 [2021-11-07 01:10:05,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:10:05,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62990 states. [2021-11-07 01:10:07,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62990 to 62990. [2021-11-07 01:10:07,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62990 states, 62923 states have (on average 1.401347678909143) internal successors, (88177), 62989 states have internal predecessors, (88177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62990 states to 62990 states and 88177 transitions. [2021-11-07 01:10:07,804 INFO L78 Accepts]: Start accepts. Automaton has 62990 states and 88177 transitions. Word has length 107 [2021-11-07 01:10:07,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:10:07,806 INFO L470 AbstractCegarLoop]: Abstraction has 62990 states and 88177 transitions. [2021-11-07 01:10:07,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:07,806 INFO L276 IsEmpty]: Start isEmpty. Operand 62990 states and 88177 transitions. [2021-11-07 01:10:07,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-07 01:10:07,826 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:07,829 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:10:07,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:10:08,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:10:08,039 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 01:10:08,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:08,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1233876444, now seen corresponding path program 1 times [2021-11-07 01:10:08,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:08,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204076340] [2021-11-07 01:10:08,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:08,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:08,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:08,049 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:08,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:10:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:14,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:10:14,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:14,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:15,712 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:15,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204076340] [2021-11-07 01:10:15,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204076340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:15,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:15,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:10:15,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054440833] [2021-11-07 01:10:15,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:10:15,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:15,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:10:15,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:10:15,715 INFO L87 Difference]: Start difference. First operand 62990 states and 88177 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:10:17,250 INFO L93 Difference]: Finished difference Result 62990 states and 88177 transitions. [2021-11-07 01:10:17,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:10:17,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-11-07 01:10:17,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:10:17,477 INFO L225 Difference]: With dead ends: 62990 [2021-11-07 01:10:17,478 INFO L226 Difference]: Without dead ends: 62984 [2021-11-07 01:10:17,492 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:10:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62984 states. [2021-11-07 01:10:19,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62984 to 62984. [2021-11-07 01:10:19,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62984 states, 62920 states have (on average 1.4013191354100445) internal successors, (88171), 62983 states have internal predecessors, (88171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:19,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62984 states to 62984 states and 88171 transitions. [2021-11-07 01:10:19,657 INFO L78 Accepts]: Start accepts. Automaton has 62984 states and 88171 transitions. Word has length 109 [2021-11-07 01:10:19,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:10:19,657 INFO L470 AbstractCegarLoop]: Abstraction has 62984 states and 88171 transitions. [2021-11-07 01:10:19,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand 62984 states and 88171 transitions. [2021-11-07 01:10:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-07 01:10:19,661 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:19,662 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:10:19,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:10:19,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:10:19,883 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 01:10:19,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:19,883 INFO L85 PathProgramCache]: Analyzing trace with hash 344444895, now seen corresponding path program 1 times [2021-11-07 01:10:19,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:19,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551299220] [2021-11-07 01:10:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:19,888 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:19,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:19,889 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:19,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:10:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:26,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:10:26,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:26,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:27,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:27,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551299220] [2021-11-07 01:10:27,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551299220] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:27,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:27,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:10:27,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171987723] [2021-11-07 01:10:27,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:10:27,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:27,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:10:27,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:10:27,650 INFO L87 Difference]: Start difference. First operand 62984 states and 88171 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:29,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:10:29,716 INFO L93 Difference]: Finished difference Result 62984 states and 88171 transitions. [2021-11-07 01:10:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:10:29,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-07 01:10:29,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:10:29,827 INFO L225 Difference]: With dead ends: 62984 [2021-11-07 01:10:29,827 INFO L226 Difference]: Without dead ends: 62978 [2021-11-07 01:10:29,839 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:10:29,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62978 states. [2021-11-07 01:10:32,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62978 to 62978. [2021-11-07 01:10:32,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62978 states, 62917 states have (on average 1.4012905891889313) internal successors, (88165), 62977 states have internal predecessors, (88165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:32,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62978 states to 62978 states and 88165 transitions. [2021-11-07 01:10:32,167 INFO L78 Accepts]: Start accepts. Automaton has 62978 states and 88165 transitions. Word has length 111 [2021-11-07 01:10:32,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:10:32,167 INFO L470 AbstractCegarLoop]: Abstraction has 62978 states and 88165 transitions. [2021-11-07 01:10:32,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 62978 states and 88165 transitions. [2021-11-07 01:10:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 01:10:32,173 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:32,174 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:10:32,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:10:32,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:10:32,399 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 01:10:32,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:32,399 INFO L85 PathProgramCache]: Analyzing trace with hash 299218530, now seen corresponding path program 1 times [2021-11-07 01:10:32,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:32,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321348566] [2021-11-07 01:10:32,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:32,405 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:32,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:32,406 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:32,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:10:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:38,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 2233 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:10:38,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:39,491 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:39,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:40,377 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:40,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321348566] [2021-11-07 01:10:40,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321348566] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:40,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:40,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:10:40,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407757870] [2021-11-07 01:10:40,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:10:40,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:40,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:10:40,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:10:40,380 INFO L87 Difference]: Start difference. First operand 62978 states and 88165 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:42,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:10:42,447 INFO L93 Difference]: Finished difference Result 62978 states and 88165 transitions. [2021-11-07 01:10:42,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:10:42,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-07 01:10:42,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:10:42,531 INFO L225 Difference]: With dead ends: 62978 [2021-11-07 01:10:42,531 INFO L226 Difference]: Without dead ends: 62972 [2021-11-07 01:10:42,541 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:10:42,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62972 states. [2021-11-07 01:10:44,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62972 to 62972. [2021-11-07 01:10:44,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62972 states, 62914 states have (on average 1.4012620402454143) internal successors, (88159), 62971 states have internal predecessors, (88159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:44,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62972 states to 62972 states and 88159 transitions. [2021-11-07 01:10:44,878 INFO L78 Accepts]: Start accepts. Automaton has 62972 states and 88159 transitions. Word has length 113 [2021-11-07 01:10:44,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:10:44,879 INFO L470 AbstractCegarLoop]: Abstraction has 62972 states and 88159 transitions. [2021-11-07 01:10:44,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:44,879 INFO L276 IsEmpty]: Start isEmpty. Operand 62972 states and 88159 transitions. [2021-11-07 01:10:44,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-07 01:10:44,885 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:44,886 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:10:44,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:10:45,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:10:45,111 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 01:10:45,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:45,111 INFO L85 PathProgramCache]: Analyzing trace with hash -213644955, now seen corresponding path program 1 times [2021-11-07 01:10:45,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:45,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386433890] [2021-11-07 01:10:45,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:45,118 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:45,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:45,120 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:45,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:10:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:51,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 2236 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:10:51,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:52,212 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:52,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:53,132 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:10:53,133 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:53,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386433890] [2021-11-07 01:10:53,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386433890] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:53,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:53,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:10:53,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942501750] [2021-11-07 01:10:53,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:10:53,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:53,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:10:53,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:10:53,136 INFO L87 Difference]: Start difference. First operand 62972 states and 88159 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:55,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:10:55,514 INFO L93 Difference]: Finished difference Result 62972 states and 88159 transitions. [2021-11-07 01:10:55,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:10:55,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-07 01:10:55,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:10:55,608 INFO L225 Difference]: With dead ends: 62972 [2021-11-07 01:10:55,608 INFO L226 Difference]: Without dead ends: 62966 [2021-11-07 01:10:55,620 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:10:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62966 states. [2021-11-07 01:10:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62966 to 62966. [2021-11-07 01:10:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62966 states, 62911 states have (on average 1.4012334885791038) internal successors, (88153), 62965 states have internal predecessors, (88153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62966 states to 62966 states and 88153 transitions. [2021-11-07 01:10:57,951 INFO L78 Accepts]: Start accepts. Automaton has 62966 states and 88153 transitions. Word has length 115 [2021-11-07 01:10:57,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:10:57,951 INFO L470 AbstractCegarLoop]: Abstraction has 62966 states and 88153 transitions. [2021-11-07 01:10:57,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 62966 states and 88153 transitions. [2021-11-07 01:10:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 01:10:57,958 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:57,959 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:10:58,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:10:58,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:10:58,175 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 01:10:58,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:58,175 INFO L85 PathProgramCache]: Analyzing trace with hash 845785320, now seen corresponding path program 1 times [2021-11-07 01:10:58,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:58,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851896002] [2021-11-07 01:10:58,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:58,180 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:58,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:58,181 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:58,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73c47f26-2083-47c1-8c80-0452b3be4e89/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process