./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:20:47,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:20:47,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:20:47,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:20:47,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:20:47,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:20:47,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:20:47,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:20:47,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:20:47,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:20:47,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:20:47,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:20:47,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:20:47,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:20:47,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:20:47,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:20:47,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:20:47,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:20:47,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:20:47,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:20:47,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:20:47,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:20:47,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:20:47,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:20:47,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:20:47,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:20:47,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:20:47,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:20:47,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:20:47,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:20:47,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:20:47,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:20:47,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:20:47,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:20:47,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:20:47,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:20:47,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:20:47,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:20:47,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:20:47,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:20:47,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:20:47,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:20:47,940 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:20:47,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:20:47,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:20:47,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:20:47,942 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:20:47,943 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:20:47,943 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:20:47,944 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:20:47,944 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:20:47,944 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:20:47,945 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:20:47,945 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:20:47,946 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:20:47,946 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:20:47,947 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:20:47,947 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:20:47,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:20:47,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:20:47,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:20:47,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:20:47,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:20:47,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:20:47,951 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:20:47,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:20:47,953 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:20:47,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:20:47,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:20:47,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:20:47,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:20:47,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:20:47,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:20:47,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:20:47,958 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:20:47,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:20:47,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:20:47,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:20:47,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:20:47,960 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_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 [2021-11-19 13:20:48,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:20:48,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:20:48,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:20:48,314 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:20:48,314 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:20:48,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-19 13:20:48,425 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data/a340378a2/8f6644c91da64d4fadd1c7da2b2555fa/FLAGb21c38fd0 [2021-11-19 13:20:49,485 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:20:49,487 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-19 13:20:49,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data/a340378a2/8f6644c91da64d4fadd1c7da2b2555fa/FLAGb21c38fd0 [2021-11-19 13:20:49,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data/a340378a2/8f6644c91da64d4fadd1c7da2b2555fa [2021-11-19 13:20:49,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:20:49,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:20:49,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:20:49,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:20:49,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:20:49,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:20:49" (1/1) ... [2021-11-19 13:20:49,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1c3c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:49, skipping insertion in model container [2021-11-19 13:20:49,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:20:49" (1/1) ... [2021-11-19 13:20:49,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:20:49,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:20:51,550 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:51,553 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:52,588 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:52,590 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:53,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2021-11-19 13:20:53,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2021-11-19 13:20:53,838 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:20:53,902 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:20:53,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36c9ce31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:53, skipping insertion in model container [2021-11-19 13:20:53,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:20:53,903 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:20:53,905 INFO L158 Benchmark]: Toolchain (without parser) took 4117.40ms. Allocated memory was 98.6MB in the beginning and 155.2MB in the end (delta: 56.6MB). Free memory was 65.9MB in the beginning and 64.5MB in the end (delta: 1.4MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2021-11-19 13:20:53,906 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 68.5MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:20:53,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4113.00ms. Allocated memory was 98.6MB in the beginning and 155.2MB in the end (delta: 56.6MB). Free memory was 65.5MB in the beginning and 64.5MB in the end (delta: 989.3kB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2021-11-19 13:20:53,909 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 68.5MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4113.00ms. Allocated memory was 98.6MB in the beginning and 155.2MB in the end (delta: 56.6MB). Free memory was 65.5MB in the beginning and 64.5MB in the end (delta: 989.3kB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5648]: 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_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:20:56,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:20:56,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:20:56,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:20:56,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:20:56,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:20:56,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:20:56,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:20:56,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:20:56,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:20:56,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:20:56,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:20:56,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:20:56,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:20:56,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:20:56,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:20:56,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:20:56,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:20:56,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:20:56,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:20:56,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:20:56,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:20:56,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:20:56,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:20:56,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:20:56,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:20:56,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:20:56,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:20:56,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:20:56,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:20:56,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:20:56,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:20:56,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:20:56,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:20:56,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:20:56,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:20:56,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:20:56,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:20:56,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:20:56,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:20:56,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:20:56,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:20:56,730 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:20:56,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:20:56,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:20:56,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:20:56,733 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:20:56,733 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:20:56,733 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:20:56,733 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:20:56,734 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:20:56,734 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:20:56,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:20:56,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:20:56,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:20:56,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:20:56,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:20:56,738 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:20:56,738 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:20:56,739 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:20:56,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:20:56,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:20:56,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:20:56,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:20:56,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:20:56,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:20:56,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:20:56,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:20:56,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:20:56,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:20:56,742 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:20:56,742 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:20:56,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:20:56,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:20:56,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:20:56,743 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_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 [2021-11-19 13:20:57,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:20:57,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:20:57,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:20:57,270 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:20:57,270 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:20:57,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-19 13:20:57,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data/ca3b315e0/e6812e26aa374d2099e933ccd97b8ae5/FLAG6d411348e [2021-11-19 13:20:58,659 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:20:58,661 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-19 13:20:58,739 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data/ca3b315e0/e6812e26aa374d2099e933ccd97b8ae5/FLAG6d411348e [2021-11-19 13:20:58,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/data/ca3b315e0/e6812e26aa374d2099e933ccd97b8ae5 [2021-11-19 13:20:58,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:20:58,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:20:58,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:20:58,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:20:58,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:20:58,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:20:58" (1/1) ... [2021-11-19 13:20:58,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1115e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:58, skipping insertion in model container [2021-11-19 13:20:58,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:20:58" (1/1) ... [2021-11-19 13:20:58,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:20:59,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:21:03,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2021-11-19 13:21:03,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2021-11-19 13:21:03,447 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:03,592 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:21:03,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:21:04,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2021-11-19 13:21:04,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2021-11-19 13:21:04,296 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:04,371 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:21:04,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2021-11-19 13:21:04,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2021-11-19 13:21:04,899 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:05,526 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:21:05,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05 WrapperNode [2021-11-19 13:21:05,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:21:05,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:21:05,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:21:05,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:21:05,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:05,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:06,043 INFO L137 Inliner]: procedures = 474, calls = 3897, calls flagged for inlining = 222, calls inlined = 206, statements flattened = 6385 [2021-11-19 13:21:06,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:21:06,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:21:06,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:21:06,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:21:06,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:06,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:06,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:06,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:06,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:06,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:06,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:06,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:21:06,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:21:06,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:21:06,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:21:06,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (1/1) ... [2021-11-19 13:21:06,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:21:06,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:21:06,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:21:06,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:21:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_medium_mode [2021-11-19 13:21:06,704 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_medium_mode [2021-11-19 13:21:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure mii_check_media [2021-11-19 13:21:06,704 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_check_media [2021-11-19 13:21:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:21:06,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:21:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2021-11-19 13:21:06,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2021-11-19 13:21:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_link [2021-11-19 13:21:06,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_link [2021-11-19 13:21:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:21:06,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:21:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_rx_ctl [2021-11-19 13:21:06,706 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_rx_ctl [2021-11-19 13:21:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_stop [2021-11-19 13:21:06,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_stop [2021-11-19 13:21:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_settings [2021-11-19 13:21:06,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_settings [2021-11-19 13:21:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_reset [2021-11-19 13:21:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_reset [2021-11-19 13:21:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-19 13:21:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-19 13:21:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_settings [2021-11-19 13:21:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_settings [2021-11-19 13:21:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_write [2021-11-19 13:21:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_write [2021-11-19 13:21:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure asix_status [2021-11-19 13:21:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_status [2021-11-19 13:21:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_rx_ctl [2021-11-19 13:21:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_rx_ctl [2021-11-19 13:21:06,710 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2021-11-19 13:21:06,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2021-11-19 13:21:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-19 13:21:06,711 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-19 13:21:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_eeprom [2021-11-19 13:21:06,712 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_eeprom [2021-11-19 13:21:06,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:21:06,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:21:06,712 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 13:21:06,712 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 13:21:06,713 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 13:21:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 13:21:06,713 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 13:21:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 13:21:06,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:21:06,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:21:06,714 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset_phy [2021-11-19 13:21:06,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset_phy [2021-11-19 13:21:06,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:21:06,716 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_unbind [2021-11-19 13:21:06,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_unbind [2021-11-19 13:21:06,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 13:21:06,718 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_link_reset [2021-11-19 13:21:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_link_reset [2021-11-19 13:21:06,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:21:06,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:21:06,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:21:06,719 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 13:21:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 13:21:06,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2021-11-19 13:21:06,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2021-11-19 13:21:06,721 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_netdev_dev_addr [2021-11-19 13:21:06,721 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_netdev_dev_addr [2021-11-19 13:21:06,722 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_bind [2021-11-19 13:21:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_bind [2021-11-19 13:21:06,723 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-11-19 13:21:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-11-19 13:21:06,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:21:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:21:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2021-11-19 13:21:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2021-11-19 13:21:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_bind [2021-11-19 13:21:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_bind [2021-11-19 13:21:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 13:21:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 13:21:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:21:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:21:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_phy_addr [2021-11-19 13:21:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_phy_addr [2021-11-19 13:21:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:21:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:21:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 13:21:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 13:21:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_internal [2021-11-19 13:21:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_internal [2021-11-19 13:21:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:21:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 13:21:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 13:21:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:21:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:21:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:21:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-19 13:21:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-19 13:21:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom_len [2021-11-19 13:21:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom_len [2021-11-19 13:21:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:21:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:21:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:21:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:21:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:21:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:21:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:21:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_wol [2021-11-19 13:21:06,733 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_wol [2021-11-19 13:21:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:21:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2021-11-19 13:21:06,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2021-11-19 13:21:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:21:06,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:21:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd_async [2021-11-19 13:21:06,739 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd_async [2021-11-19 13:21:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 13:21:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 13:21:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_unbind [2021-11-19 13:21:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_unbind [2021-11-19 13:21:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset [2021-11-19 13:21:06,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset [2021-11-19 13:21:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_link_reset [2021-11-19 13:21:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_link_reset [2021-11-19 13:21:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_start_xmit [2021-11-19 13:21:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_start_xmit [2021-11-19 13:21:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 13:21:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 13:21:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_drvinfo [2021-11-19 13:21:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_drvinfo [2021-11-19 13:21:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:21:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_hw_mii [2021-11-19 13:21:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_hw_mii [2021-11-19 13:21:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:21:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:21:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:21:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 13:21:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 13:21:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_msglevel [2021-11-19 13:21:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_msglevel [2021-11-19 13:21:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-11-19 13:21:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-11-19 13:21:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:21:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:21:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:21:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:21:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:21:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:21:06,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:21:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_set_settings [2021-11-19 13:21:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_set_settings [2021-11-19 13:21:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_reset [2021-11-19 13:21:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_reset [2021-11-19 13:21:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_6_4 [2021-11-19 13:21:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_6_4 [2021-11-19 13:21:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phyid [2021-11-19 13:21:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phyid [2021-11-19 13:21:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2021-11-19 13:21:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2021-11-19 13:21:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 13:21:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 13:21:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-19 13:21:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-19 13:21:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure asix_tx_fixup [2021-11-19 13:21:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_tx_fixup [2021-11-19 13:21:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 13:21:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 13:21:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:21:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:21:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-19 13:21:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-19 13:21:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_msglevel [2021-11-19 13:21:06,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_msglevel [2021-11-19 13:21:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-19 13:21:06,759 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-19 13:21:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure asix_sw_reset [2021-11-19 13:21:06,759 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_sw_reset [2021-11-19 13:21:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:21:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_bind [2021-11-19 13:21:06,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_bind [2021-11-19 13:21:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phy_addr [2021-11-19 13:21:06,760 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phy_addr [2021-11-19 13:21:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd [2021-11-19 13:21:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd [2021-11-19 13:21:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 13:21:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 13:21:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_medium_status [2021-11-19 13:21:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_medium_status [2021-11-19 13:21:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:21:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:21:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:21:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:21:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:21:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:21:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_cmd [2021-11-19 13:21:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_cmd [2021-11-19 13:21:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 13:21:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 13:21:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 13:21:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 13:21:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:21:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:21:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_nway_reset [2021-11-19 13:21:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_nway_reset [2021-11-19 13:21:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:21:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:21:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 13:21:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 13:21:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_gpio [2021-11-19 13:21:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_gpio [2021-11-19 13:21:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_read [2021-11-19 13:21:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_read [2021-11-19 13:21:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-19 13:21:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-19 13:21:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_link_reset [2021-11-19 13:21:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_link_reset [2021-11-19 13:21:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:21:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:21:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_restart [2021-11-19 13:21:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_restart [2021-11-19 13:21:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 13:21:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 13:21:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:21:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:21:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:21:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:21:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:21:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:21:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:21:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:21:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_adjust_link [2021-11-19 13:21:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_adjust_link [2021-11-19 13:21:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_set_multicast [2021-11-19 13:21:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_set_multicast [2021-11-19 13:21:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_rx_fixup [2021-11-19 13:21:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_rx_fixup [2021-11-19 13:21:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_sw_mii [2021-11-19 13:21:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_sw_mii [2021-11-19 13:21:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_bind [2021-11-19 13:21:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_bind [2021-11-19 13:21:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_status [2021-11-19 13:21:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_status [2021-11-19 13:21:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_common [2021-11-19 13:21:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_common [2021-11-19 13:21:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:21:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:21:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2021-11-19 13:21:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2021-11-19 13:21:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-19 13:21:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-19 13:21:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom [2021-11-19 13:21:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom [2021-11-19 13:21:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:21:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:21:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_wol [2021-11-19 13:21:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_wol [2021-11-19 13:21:08,070 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:21:08,080 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:21:12,358 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:22:38,925 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:22:41,206 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:22:41,247 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:22:41,248 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 13:22:41,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:22:41 BoogieIcfgContainer [2021-11-19 13:22:41,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:22:41,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:22:41,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:22:41,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:22:41,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:20:58" (1/3) ... [2021-11-19 13:22:41,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf8ae7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:22:41, skipping insertion in model container [2021-11-19 13:22:41,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:05" (2/3) ... [2021-11-19 13:22:41,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf8ae7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:22:41, skipping insertion in model container [2021-11-19 13:22:41,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:22:41" (3/3) ... [2021-11-19 13:22:41,266 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-19 13:22:41,273 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:22:41,273 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:22:41,368 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:22:41,376 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:22:41,376 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:22:41,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 2314 states, 1608 states have (on average 1.2941542288557213) internal successors, (2081), 1617 states have internal predecessors, (2081), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (590), 585 states have call predecessors, (590), 590 states have call successors, (590) [2021-11-19 13:22:41,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-19 13:22:41,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:41,531 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:41,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:22:41,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:41,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1682858046, now seen corresponding path program 1 times [2021-11-19 13:22:41,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:41,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35653568] [2021-11-19 13:22:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:41,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:41,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:41,566 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:41,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:22:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:46,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 4555 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:22:46,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:48,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 6327 trivial. 0 not checked. [2021-11-19 13:22:48,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:50,085 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked. [2021-11-19 13:22:50,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:50,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35653568] [2021-11-19 13:22:50,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35653568] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:50,088 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:50,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:22:50,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921676712] [2021-11-19 13:22:50,100 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:50,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:22:50,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:50,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:22:50,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:22:50,164 INFO L87 Difference]: Start difference. First operand has 2314 states, 1608 states have (on average 1.2941542288557213) internal successors, (2081), 1617 states have internal predecessors, (2081), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (590), 585 states have call predecessors, (590), 590 states have call successors, (590) Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2021-11-19 13:22:53,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:23:09,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:09,084 INFO L93 Difference]: Finished difference Result 8820 states and 12556 transitions. [2021-11-19 13:23:09,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:23:09,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) Word has length 461 [2021-11-19 13:23:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:09,251 INFO L225 Difference]: With dead ends: 8820 [2021-11-19 13:23:09,251 INFO L226 Difference]: Without dead ends: 6461 [2021-11-19 13:23:09,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 920 GetRequests, 918 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:23:09,283 INFO L933 BasicCegarLoop]: 4300 mSDtfsCounter, 8125 mSDsluCounter, 5019 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 1096 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8125 SdHoareTripleChecker+Valid, 9319 SdHoareTripleChecker+Invalid, 2359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1096 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:09,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8125 Valid, 9319 Invalid, 2359 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1096 Valid, 1262 Invalid, 1 Unknown, 0 Unchecked, 18.2s Time] [2021-11-19 13:23:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6461 states. [2021-11-19 13:23:09,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6461 to 6453. [2021-11-19 13:23:09,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6453 states, 4553 states have (on average 1.2978256094882494) internal successors, (5909), 4578 states have internal predecessors, (5909), 1581 states have call successors, (1581), 318 states have call predecessors, (1581), 318 states have return successors, (1581), 1562 states have call predecessors, (1581), 1581 states have call successors, (1581) [2021-11-19 13:23:09,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9071 transitions. [2021-11-19 13:23:09,925 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9071 transitions. Word has length 461 [2021-11-19 13:23:09,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:09,932 INFO L470 AbstractCegarLoop]: Abstraction has 6453 states and 9071 transitions. [2021-11-19 13:23:09,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2021-11-19 13:23:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9071 transitions. [2021-11-19 13:23:09,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2021-11-19 13:23:09,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:09,969 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:10,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:10,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:10,172 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:10,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:10,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1340094481, now seen corresponding path program 1 times [2021-11-19 13:23:10,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:10,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829700035] [2021-11-19 13:23:10,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:10,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:10,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:10,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:10,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:23:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:15,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 4573 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:23:15,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 6327 trivial. 0 not checked. [2021-11-19 13:23:16,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked. [2021-11-19 13:23:18,211 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:18,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829700035] [2021-11-19 13:23:18,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829700035] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:18,211 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:18,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:23:18,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682860272] [2021-11-19 13:23:18,212 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:18,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:23:18,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:18,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:23:18,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:18,217 INFO L87 Difference]: Start difference. First operand 6453 states and 9071 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-19 13:23:20,936 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:23:22,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:22,232 INFO L93 Difference]: Finished difference Result 18518 states and 25951 transitions. [2021-11-19 13:23:22,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:23:22,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 469 [2021-11-19 13:23:22,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:22,391 INFO L225 Difference]: With dead ends: 18518 [2021-11-19 13:23:22,391 INFO L226 Difference]: Without dead ends: 12146 [2021-11-19 13:23:22,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 935 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:22,444 INFO L933 BasicCegarLoop]: 3885 mSDtfsCounter, 2765 mSDsluCounter, 3131 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2765 SdHoareTripleChecker+Valid, 7016 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:22,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2765 Valid, 7016 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-19 13:23:22,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12146 states. [2021-11-19 13:23:23,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12146 to 12138. [2021-11-19 13:23:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12138 states, 8598 states have (on average 1.2947197022563386) internal successors, (11132), 8635 states have internal predecessors, (11132), 2915 states have call successors, (2915), 624 states have call predecessors, (2915), 624 states have return successors, (2915), 2890 states have call predecessors, (2915), 2915 states have call successors, (2915) [2021-11-19 13:23:23,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12138 states to 12138 states and 16962 transitions. [2021-11-19 13:23:23,446 INFO L78 Accepts]: Start accepts. Automaton has 12138 states and 16962 transitions. Word has length 469 [2021-11-19 13:23:23,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:23,448 INFO L470 AbstractCegarLoop]: Abstraction has 12138 states and 16962 transitions. [2021-11-19 13:23:23,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-19 13:23:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 12138 states and 16962 transitions. [2021-11-19 13:23:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-11-19 13:23:23,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:23,476 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:23,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:23,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:23,693 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:23,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:23,693 INFO L85 PathProgramCache]: Analyzing trace with hash -50167623, now seen corresponding path program 1 times [2021-11-19 13:23:23,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:23,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624536081] [2021-11-19 13:23:23,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:23,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:23,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:23,702 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:23,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:23:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:29,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 4596 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:23:29,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 6327 trivial. 0 not checked. [2021-11-19 13:23:30,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked. [2021-11-19 13:23:32,262 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:32,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624536081] [2021-11-19 13:23:32,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624536081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:32,263 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:32,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:23:32,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805439477] [2021-11-19 13:23:32,264 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:32,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:23:32,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:32,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:23:32,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:32,267 INFO L87 Difference]: Start difference. First operand 12138 states and 16962 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-19 13:23:34,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:23:36,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:36,788 INFO L93 Difference]: Finished difference Result 35743 states and 49890 transitions. [2021-11-19 13:23:36,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:23:36,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 471 [2021-11-19 13:23:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:37,114 INFO L225 Difference]: With dead ends: 35743 [2021-11-19 13:23:37,114 INFO L226 Difference]: Without dead ends: 23686 [2021-11-19 13:23:37,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 939 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:37,193 INFO L933 BasicCegarLoop]: 4043 mSDtfsCounter, 2926 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2926 SdHoareTripleChecker+Valid, 7173 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:37,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2926 Valid, 7173 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-11-19 13:23:37,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23686 states. [2021-11-19 13:23:38,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23686 to 23680. [2021-11-19 13:23:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23680 states, 16822 states have (on average 1.2934252764237308) internal successors, (21758), 16898 states have internal predecessors, (21758), 5612 states have call successors, (5612), 1245 states have call predecessors, (5612), 1245 states have return successors, (5612), 5560 states have call predecessors, (5612), 5612 states have call successors, (5612) [2021-11-19 13:23:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23680 states to 23680 states and 32982 transitions. [2021-11-19 13:23:38,974 INFO L78 Accepts]: Start accepts. Automaton has 23680 states and 32982 transitions. Word has length 471 [2021-11-19 13:23:38,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:39,072 INFO L470 AbstractCegarLoop]: Abstraction has 23680 states and 32982 transitions. [2021-11-19 13:23:39,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-19 13:23:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 23680 states and 32982 transitions. [2021-11-19 13:23:39,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-11-19 13:23:39,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:39,116 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 38, 38, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:39,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:39,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:39,341 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:39,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1525870781, now seen corresponding path program 1 times [2021-11-19 13:23:39,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:39,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161164151] [2021-11-19 13:23:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:39,347 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:39,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:39,349 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:39,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:23:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:44,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 4589 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:23:44,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 6331 trivial. 0 not checked. [2021-11-19 13:23:45,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6445 trivial. 0 not checked. [2021-11-19 13:23:47,314 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:47,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161164151] [2021-11-19 13:23:47,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161164151] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:47,314 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:47,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:23:47,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002800800] [2021-11-19 13:23:47,315 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:47,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:23:47,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:47,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:23:47,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:47,317 INFO L87 Difference]: Start difference. First operand 23680 states and 32982 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-19 13:23:50,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:23:52,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:52,711 INFO L93 Difference]: Finished difference Result 69006 states and 96140 transitions. [2021-11-19 13:23:52,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:23:52,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 479 [2021-11-19 13:23:52,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:53,217 INFO L225 Difference]: With dead ends: 69006 [2021-11-19 13:23:53,218 INFO L226 Difference]: Without dead ends: 45407 [2021-11-19 13:23:53,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 955 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:53,316 INFO L933 BasicCegarLoop]: 3706 mSDtfsCounter, 2840 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2840 SdHoareTripleChecker+Valid, 6810 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:53,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2840 Valid, 6810 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-19 13:23:53,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45407 states. [2021-11-19 13:23:56,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45407 to 45357. [2021-11-19 13:23:56,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45357 states, 32148 states have (on average 1.2940151797934554) internal successors, (41600), 32324 states have internal predecessors, (41600), 10784 states have call successors, (10784), 2424 states have call predecessors, (10784), 2424 states have return successors, (10784), 10656 states have call predecessors, (10784), 10784 states have call successors, (10784) [2021-11-19 13:23:56,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45357 states to 45357 states and 63168 transitions. [2021-11-19 13:23:56,975 INFO L78 Accepts]: Start accepts. Automaton has 45357 states and 63168 transitions. Word has length 479 [2021-11-19 13:23:56,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:56,977 INFO L470 AbstractCegarLoop]: Abstraction has 45357 states and 63168 transitions. [2021-11-19 13:23:56,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-19 13:23:56,978 INFO L276 IsEmpty]: Start isEmpty. Operand 45357 states and 63168 transitions. [2021-11-19 13:23:56,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2021-11-19 13:23:56,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:56,995 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 38, 38, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:57,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-19 13:23:57,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:57,209 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:57,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:57,209 INFO L85 PathProgramCache]: Analyzing trace with hash -885489963, now seen corresponding path program 1 times [2021-11-19 13:23:57,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:57,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033363080] [2021-11-19 13:23:57,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:57,214 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:57,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:57,215 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:57,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:24:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:02,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 4588 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:24:02,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:03,714 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 6331 trivial. 0 not checked. [2021-11-19 13:24:03,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6445 trivial. 0 not checked. [2021-11-19 13:24:05,025 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:05,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033363080] [2021-11-19 13:24:05,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033363080] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:05,025 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:05,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:24:05,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379006109] [2021-11-19 13:24:05,026 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:05,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:24:05,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:05,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:24:05,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:24:05,029 INFO L87 Difference]: Start difference. First operand 45357 states and 63168 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-19 13:24:07,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:24:11,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:11,421 INFO L93 Difference]: Finished difference Result 130257 states and 181358 transitions. [2021-11-19 13:24:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:24:11,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 478 [2021-11-19 13:24:11,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:11,959 INFO L225 Difference]: With dead ends: 130257 [2021-11-19 13:24:11,959 INFO L226 Difference]: Without dead ends: 84981 [2021-11-19 13:24:12,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 953 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:24:12,365 INFO L933 BasicCegarLoop]: 4105 mSDtfsCounter, 2841 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2841 SdHoareTripleChecker+Valid, 7208 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:12,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2841 Valid, 7208 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-19 13:24:12,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84981 states. [2021-11-19 13:24:17,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84981 to 84955. [2021-11-19 13:24:17,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84955 states, 59896 states have (on average 1.2919727527714706) internal successors, (77384), 60272 states have internal predecessors, (77384), 20390 states have call successors, (20390), 4668 states have call predecessors, (20390), 4668 states have return successors, (20390), 20110 states have call predecessors, (20390), 20390 states have call successors, (20390) [2021-11-19 13:24:18,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84955 states to 84955 states and 118164 transitions. [2021-11-19 13:24:18,201 INFO L78 Accepts]: Start accepts. Automaton has 84955 states and 118164 transitions. Word has length 478 [2021-11-19 13:24:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:18,202 INFO L470 AbstractCegarLoop]: Abstraction has 84955 states and 118164 transitions. [2021-11-19 13:24:18,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-19 13:24:18,203 INFO L276 IsEmpty]: Start isEmpty. Operand 84955 states and 118164 transitions. [2021-11-19 13:24:18,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-11-19 13:24:18,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:18,217 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:24:18,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:18,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:18,430 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:24:18,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:18,431 INFO L85 PathProgramCache]: Analyzing trace with hash -508793377, now seen corresponding path program 1 times [2021-11-19 13:24:18,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:18,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002843785] [2021-11-19 13:24:18,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:18,441 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:18,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:18,442 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:18,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:24:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:23,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 4579 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:24:23,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 6327 trivial. 0 not checked. [2021-11-19 13:24:25,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:26,450 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked. [2021-11-19 13:24:26,450 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:26,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002843785] [2021-11-19 13:24:26,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002843785] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:26,451 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:26,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:24:26,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874822232] [2021-11-19 13:24:26,452 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:26,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:24:26,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:26,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:24:26,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:24:26,455 INFO L87 Difference]: Start difference. First operand 84955 states and 118164 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-19 13:24:29,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:24:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:35,439 INFO L93 Difference]: Finished difference Result 247779 states and 344319 transitions. [2021-11-19 13:24:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:24:35,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 474 [2021-11-19 13:24:35,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:36,717 INFO L225 Difference]: With dead ends: 247779 [2021-11-19 13:24:36,717 INFO L226 Difference]: Without dead ends: 162905 [2021-11-19 13:24:36,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 946 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:24:36,970 INFO L933 BasicCegarLoop]: 4669 mSDtfsCounter, 2926 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2926 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:36,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2926 Valid, 7801 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-19 13:24:37,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162905 states. [2021-11-19 13:24:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162905 to 162871. [2021-11-19 13:24:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162871 states, 114952 states have (on average 1.2889466907926788) internal successors, (148167), 115712 states have internal predecessors, (148167), 38797 states have call successors, (38797), 9121 states have call predecessors, (38797), 9121 states have return successors, (38797), 38229 states have call predecessors, (38797), 38797 states have call successors, (38797) [2021-11-19 13:24:46,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162871 states to 162871 states and 225761 transitions. [2021-11-19 13:24:46,538 INFO L78 Accepts]: Start accepts. Automaton has 162871 states and 225761 transitions. Word has length 474 [2021-11-19 13:24:46,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:46,540 INFO L470 AbstractCegarLoop]: Abstraction has 162871 states and 225761 transitions. [2021-11-19 13:24:46,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-19 13:24:46,540 INFO L276 IsEmpty]: Start isEmpty. Operand 162871 states and 225761 transitions. [2021-11-19 13:24:46,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2021-11-19 13:24:46,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:46,575 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 38, 38, 38, 38, 38, 38, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:24:46,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:46,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:46,801 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:24:46,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:46,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1181795287, now seen corresponding path program 1 times [2021-11-19 13:24:46,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:46,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174592385] [2021-11-19 13:24:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:46,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:46,809 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:46,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb2718b-f74f-4c55-b15d-32ab2ca0bf82/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:24:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:51,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 4606 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:24:51,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:52,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6561 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 6327 trivial. 0 not checked. [2021-11-19 13:24:52,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:54,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6561 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6558 trivial. 0 not checked. [2021-11-19 13:24:54,438 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:54,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174592385] [2021-11-19 13:24:54,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174592385] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:54,439 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:54,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:24:54,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959845570] [2021-11-19 13:24:54,440 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:54,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:24:54,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:54,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:24:54,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:24:54,442 INFO L87 Difference]: Start difference. First operand 162871 states and 225761 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-19 13:24:57,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []