./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.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_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/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_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/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_f603121d-ab95-4bda-9bf6-7b023294dd32/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 536967bc2d119b5b01611d52124221c0068f635deed7f674213322a832d07143 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:06:40,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:06:40,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:06:40,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:06:40,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:06:40,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:06:40,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:06:40,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:06:40,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:06:40,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:06:40,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:06:40,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:06:40,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:06:40,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:06:40,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:06:40,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:06:40,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:06:40,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:06:40,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:06:40,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:06:40,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:06:40,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:06:40,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:06:40,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:06:40,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:06:40,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:06:40,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:06:40,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:06:40,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:06:40,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:06:40,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:06:40,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:06:40,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:06:40,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:06:40,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:06:40,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:06:40,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:06:40,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:06:40,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:06:40,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:06:40,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:06:40,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:06:40,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:06:40,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:06:40,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:06:40,941 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:06:40,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:06:40,941 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:06:40,942 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:06:40,948 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:06:40,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:06:40,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:06:40,950 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:06:40,950 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:06:40,951 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:06:40,951 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:06:40,951 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:06:40,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:06:40,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:06:40,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:06:40,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:06:40,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:06:40,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:06:40,953 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:06:40,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:06:40,954 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:06:40,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:06:40,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:06:40,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:06:40,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:06:40,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:06:40,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:06:40,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:06:40,958 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:06:40,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:06:40,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:06:40,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:06:40,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:06:40,959 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_f603121d-ab95-4bda-9bf6-7b023294dd32/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 536967bc2d119b5b01611d52124221c0068f635deed7f674213322a832d07143 [2021-11-07 02:06:41,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:06:41,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:06:41,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:06:41,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:06:41,254 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:06:41,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:06:41,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data/8822a4b86/34e65394ff054a75ba19b96b9cb16458/FLAG6bb26cbea [2021-11-07 02:06:42,285 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:06:42,286 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:06:42,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data/8822a4b86/34e65394ff054a75ba19b96b9cb16458/FLAG6bb26cbea [2021-11-07 02:06:42,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data/8822a4b86/34e65394ff054a75ba19b96b9cb16458 [2021-11-07 02:06:42,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:06:42,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:06:42,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:06:42,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:06:42,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:06:42,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:06:42" (1/1) ... [2021-11-07 02:06:42,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65648cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:42, skipping insertion in model container [2021-11-07 02:06:42,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:06:42" (1/1) ... [2021-11-07 02:06:42,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:06:42,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:06:45,022 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 02:06:45,025 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 02:06:45,181 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 02:06:45,183 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 02:06:45,270 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 02:06:45,271 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 02:06:45,963 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314317,314330] [2021-11-07 02:06:45,969 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314464,314477] [2021-11-07 02:06:45,970 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314603,314616] [2021-11-07 02:06:45,971 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314761,314774] [2021-11-07 02:06:46,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:06:46,079 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 02:06:46,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@423576ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:46, skipping insertion in model container [2021-11-07 02:06:46,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:06:46,081 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:06:46,083 INFO L168 Benchmark]: Toolchain (without parser) took 3387.38 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 69.0 MB in the beginning and 105.8 MB in the end (delta: -36.9 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:46,088 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 53.5 MB in the beginning and 53.5 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:06:46,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3381.26 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 68.7 MB in the beginning and 105.8 MB in the end (delta: -37.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:46,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 53.5 MB in the beginning and 53.5 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3381.26 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 68.7 MB in the beginning and 105.8 MB in the end (delta: -37.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7423]: 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_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/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_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/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_f603121d-ab95-4bda-9bf6-7b023294dd32/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 536967bc2d119b5b01611d52124221c0068f635deed7f674213322a832d07143 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:06:48,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:06:48,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:06:48,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:06:48,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:06:48,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:06:48,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:06:48,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:06:48,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:06:48,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:06:48,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:06:48,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:06:48,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:06:48,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:06:48,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:06:48,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:06:48,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:06:48,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:06:48,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:06:48,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:06:48,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:06:48,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:06:48,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:06:48,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:06:48,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:06:48,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:06:48,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:06:48,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:06:48,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:06:48,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:06:48,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:06:48,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:06:48,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:06:48,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:06:48,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:06:48,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:06:48,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:06:48,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:06:48,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:06:48,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:06:48,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:06:48,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:06:48,702 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:06:48,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:06:48,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:06:48,703 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:06:48,704 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:06:48,704 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:06:48,704 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:06:48,704 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:06:48,705 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:06:48,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:06:48,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:06:48,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:06:48,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:06:48,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:06:48,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:06:48,710 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:06:48,710 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:06:48,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:06:48,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:06:48,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:06:48,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:06:48,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:06:48,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:06:48,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:06:48,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:06:48,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:06:48,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:06:48,713 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:06:48,713 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:06:48,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:06:48,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:06:48,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:06:48,714 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_f603121d-ab95-4bda-9bf6-7b023294dd32/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 536967bc2d119b5b01611d52124221c0068f635deed7f674213322a832d07143 [2021-11-07 02:06:49,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:06:49,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:06:49,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:06:49,172 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:06:49,173 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:06:49,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:06:49,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data/727c578f9/6acf2464abb94298a067e7e977fa66b2/FLAG9a5472969 [2021-11-07 02:06:50,347 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:06:50,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:06:50,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data/727c578f9/6acf2464abb94298a067e7e977fa66b2/FLAG9a5472969 [2021-11-07 02:06:50,720 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/data/727c578f9/6acf2464abb94298a067e7e977fa66b2 [2021-11-07 02:06:50,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:06:50,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:06:50,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:06:50,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:06:50,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:06:50,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:06:50" (1/1) ... [2021-11-07 02:06:50,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6706725d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:50, skipping insertion in model container [2021-11-07 02:06:50,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:06:50" (1/1) ... [2021-11-07 02:06:50,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:06:50,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:06:54,067 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314317,314330] [2021-11-07 02:06:54,070 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314464,314477] [2021-11-07 02:06:54,071 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314603,314616] [2021-11-07 02:06:54,072 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314761,314774] [2021-11-07 02:06:54,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:06:54,181 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:06:54,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:06:54,704 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314317,314330] [2021-11-07 02:06:54,720 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314464,314477] [2021-11-07 02:06:54,721 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314603,314616] [2021-11-07 02:06:54,721 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314761,314774] [2021-11-07 02:06:54,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:06:54,764 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:06:55,330 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314317,314330] [2021-11-07 02:06:55,330 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314464,314477] [2021-11-07 02:06:55,331 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314603,314616] [2021-11-07 02:06:55,331 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_f603121d-ab95-4bda-9bf6-7b023294dd32/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314761,314774] [2021-11-07 02:06:55,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:06:55,554 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:06:55,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55 WrapperNode [2021-11-07 02:06:55,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:06:55,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:06:55,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:06:55,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:06:55,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:06:55,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:07:05,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:07:05,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:07:05,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:07:05,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:07:05,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:07:05,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:07:06,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:07:06,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:07:08,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:07:08,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:07:09,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:07:09,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:07:09,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:07:09,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:07:09,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:07:09,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (1/1) ... [2021-11-07 02:07:09,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:09,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:07:09,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:07:09,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:07:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:07:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-07 02:07:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:07:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:07:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 02:07:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 02:07:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:07:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:07:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:07:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:07:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:07:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 02:07:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:07:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:07:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:07:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:07:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:07:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:07:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 02:07:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 02:07:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 02:07:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 02:07:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:07:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:07:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 02:07:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 02:07:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 02:07:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 02:07:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:07:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:10:25,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 02:10:25,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 02:10:25,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 02:10:25,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 02:10:25,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 02:10:25,907 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 02:10:26,076 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:10:26,076 INFO L299 CfgBuilder]: Removed 36084 assume(true) statements. [2021-11-07 02:10:26,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:26 BoogieIcfgContainer [2021-11-07 02:10:26,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:10:26,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:10:26,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:10:26,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:10:26,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:06:50" (1/3) ... [2021-11-07 02:10:26,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c8e7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:26, skipping insertion in model container [2021-11-07 02:10:26,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:55" (2/3) ... [2021-11-07 02:10:26,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c8e7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:26, skipping insertion in model container [2021-11-07 02:10:26,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:26" (3/3) ... [2021-11-07 02:10:26,114 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:10:26,121 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:10:26,121 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-07 02:10:26,284 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:10:26,302 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 02:10:26,302 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 02:10:26,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 23101 states, 23097 states have (on average 1.2038792916829026) internal successors, (27806), 23100 states have internal predecessors, (27806), 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 02:10:26,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 02:10:26,669 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:26,670 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] [2021-11-07 02:10:26,670 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:10:26,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:26,683 INFO L85 PathProgramCache]: Analyzing trace with hash -201446684, now seen corresponding path program 1 times [2021-11-07 02:10:26,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:26,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029123689] [2021-11-07 02:10:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:26,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:26,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:26,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:26,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:10:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:29,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:10:29,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:29,684 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 02:10:29,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:29,889 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 02:10:29,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:29,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029123689] [2021-11-07 02:10:29,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029123689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:29,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:29,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:10:29,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764118071] [2021-11-07 02:10:29,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:10:29,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:29,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:10:29,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:10:29,959 INFO L87 Difference]: Start difference. First operand has 23101 states, 23097 states have (on average 1.2038792916829026) internal successors, (27806), 23100 states have internal predecessors, (27806), 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 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 02:10:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:36,665 INFO L93 Difference]: Finished difference Result 91972 states and 110670 transitions. [2021-11-07 02:10:36,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:10:36,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 43 [2021-11-07 02:10:36,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:37,114 INFO L225 Difference]: With dead ends: 91972 [2021-11-07 02:10:37,114 INFO L226 Difference]: Without dead ends: 68596 [2021-11-07 02:10:37,381 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 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 02:10:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68596 states. [2021-11-07 02:10:40,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68596 to 68592. [2021-11-07 02:10:40,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68592 states, 68588 states have (on average 1.1966962150813554) internal successors, (82079), 68591 states have internal predecessors, (82079), 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 02:10:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68592 states to 68592 states and 82079 transitions. [2021-11-07 02:10:40,898 INFO L78 Accepts]: Start accepts. Automaton has 68592 states and 82079 transitions. Word has length 43 [2021-11-07 02:10:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:40,900 INFO L470 AbstractCegarLoop]: Abstraction has 68592 states and 82079 transitions. [2021-11-07 02:10:40,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 02:10:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 68592 states and 82079 transitions. [2021-11-07 02:10:40,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 02:10:40,916 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:40,917 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 02:10:40,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:41,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:41,141 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:10:41,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:41,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1725529671, now seen corresponding path program 1 times [2021-11-07 02:10:41,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:41,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655324842] [2021-11-07 02:10:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:41,147 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:41,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:41,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:41,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:10:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:44,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:10:44,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:44,328 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:44,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:44,567 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:44,567 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:44,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655324842] [2021-11-07 02:10:44,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655324842] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:44,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:44,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:10:44,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706778059] [2021-11-07 02:10:44,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:10:44,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:44,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:10:44,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:10:44,571 INFO L87 Difference]: Start difference. First operand 68592 states and 82079 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 02:10:48,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:48,001 INFO L93 Difference]: Finished difference Result 114297 states and 136773 transitions. [2021-11-07 02:10:48,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:10:48,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2021-11-07 02:10:48,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:48,261 INFO L225 Difference]: With dead ends: 114297 [2021-11-07 02:10:48,262 INFO L226 Difference]: Without dead ends: 68592 [2021-11-07 02:10:48,402 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 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 02:10:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68592 states. [2021-11-07 02:10:50,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68592 to 68592. [2021-11-07 02:10:50,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68592 states, 68588 states have (on average 1.196681635271476) internal successors, (82078), 68591 states have internal predecessors, (82078), 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 02:10:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68592 states to 68592 states and 82078 transitions. [2021-11-07 02:10:51,104 INFO L78 Accepts]: Start accepts. Automaton has 68592 states and 82078 transitions. Word has length 67 [2021-11-07 02:10:51,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:51,105 INFO L470 AbstractCegarLoop]: Abstraction has 68592 states and 82078 transitions. [2021-11-07 02:10:51,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 02:10:51,106 INFO L276 IsEmpty]: Start isEmpty. Operand 68592 states and 82078 transitions. [2021-11-07 02:10:51,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 02:10:51,116 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:51,116 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] [2021-11-07 02:10:51,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:51,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:51,333 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:10:51,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:51,334 INFO L85 PathProgramCache]: Analyzing trace with hash 140076434, now seen corresponding path program 1 times [2021-11-07 02:10:51,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:51,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412266539] [2021-11-07 02:10:51,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:51,338 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:51,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:51,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:51,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:10:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:54,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:10:54,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:54,359 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 02:10:54,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:54,695 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 02:10:54,695 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:54,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412266539] [2021-11-07 02:10:54,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412266539] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:54,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:54,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:10:54,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014622634] [2021-11-07 02:10:54,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:10:54,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:54,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:10:54,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:10:54,699 INFO L87 Difference]: Start difference. First operand 68592 states and 82078 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 02:11:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:11:01,397 INFO L93 Difference]: Finished difference Result 170308 states and 203826 transitions. [2021-11-07 02:11:01,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:11:01,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 68 [2021-11-07 02:11:01,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:11:01,789 INFO L225 Difference]: With dead ends: 170308 [2021-11-07 02:11:01,789 INFO L226 Difference]: Without dead ends: 101784 [2021-11-07 02:11:01,953 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 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 02:11:02,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101784 states. [2021-11-07 02:11:07,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101784 to 101740. [2021-11-07 02:11:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101740 states, 101736 states have (on average 1.1965479279704332) internal successors, (121732), 101739 states have internal predecessors, (121732), 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 02:11:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101740 states to 101740 states and 121732 transitions. [2021-11-07 02:11:07,496 INFO L78 Accepts]: Start accepts. Automaton has 101740 states and 121732 transitions. Word has length 68 [2021-11-07 02:11:07,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:11:07,499 INFO L470 AbstractCegarLoop]: Abstraction has 101740 states and 121732 transitions. [2021-11-07 02:11:07,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 02:11:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 101740 states and 121732 transitions. [2021-11-07 02:11:07,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 02:11:07,519 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:07,520 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 02:11:07,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:11:07,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:11:07,737 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:11:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:07,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1047398439, now seen corresponding path program 1 times [2021-11-07 02:11:07,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:11:07,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549042301] [2021-11-07 02:11:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:07,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:11:07,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:11:07,746 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:11:07,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603121d-ab95-4bda-9bf6-7b023294dd32/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:11:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:10,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:11:10,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:10,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:10,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:10,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549042301] [2021-11-07 02:11:10,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549042301] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:11:10,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:11:10,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:11:10,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973254469] [2021-11-07 02:11:10,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:11:10,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:11:10,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:11:10,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:11:10,651 INFO L87 Difference]: Start difference. First operand 101740 states and 121732 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 02:11:18,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:11:18,532 INFO L93 Difference]: Finished difference Result 237408 states and 284088 transitions. [2021-11-07 02:11:18,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:11:18,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-07 02:11:18,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:11:18,947 INFO L225 Difference]: With dead ends: 237408 [2021-11-07 02:11:18,947 INFO L226 Difference]: Without dead ends: 146919 [2021-11-07 02:11:19,166 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 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 02:11:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146919 states.