./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:05:38,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:05:38,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:05:38,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:05:38,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:05:38,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:05:38,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:05:38,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:05:38,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:05:38,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:05:38,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:05:38,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:05:38,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:05:38,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:05:38,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:05:38,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:05:38,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:05:38,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:05:38,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:05:38,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:05:38,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:05:38,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:05:38,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:05:38,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:05:38,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:05:38,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:05:38,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:05:38,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:05:38,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:05:38,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:05:38,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:05:38,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:05:38,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:05:38,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:05:38,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:05:38,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:05:38,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:05:38,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:05:38,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:05:38,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:05:38,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:05:38,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:05:39,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:05:39,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:05:39,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:05:39,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:05:39,003 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:05:39,003 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:05:39,003 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:05:39,004 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:05:39,004 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:05:39,004 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:05:39,004 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:05:39,004 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:05:39,004 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:05:39,019 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:05:39,019 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:05:39,019 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:05:39,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:05:39,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:05:39,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:05:39,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:05:39,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:05:39,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:05:39,021 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:05:39,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:05:39,021 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:05:39,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:05:39,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:05:39,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:05:39,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:39,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:05:39,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:05:39,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:05:39,023 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:05:39,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:05:39,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:05:39,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:05:39,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:05:39,024 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_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f [2021-11-12 23:05:39,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:05:39,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:05:39,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:05:39,387 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:05:39,388 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:05:39,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 23:05:39,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data/6c633069b/1f0ff541e4824b4fa9adf9cd0ca9b0cb/FLAG968685f66 [2021-11-12 23:05:40,379 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:05:40,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 23:05:40,477 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data/6c633069b/1f0ff541e4824b4fa9adf9cd0ca9b0cb/FLAG968685f66 [2021-11-12 23:05:40,788 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data/6c633069b/1f0ff541e4824b4fa9adf9cd0ca9b0cb [2021-11-12 23:05:40,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:05:40,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:05:40,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:40,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:05:40,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:05:40,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:40" (1/1) ... [2021-11-12 23:05:40,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5481ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:40, skipping insertion in model container [2021-11-12 23:05:40,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:40" (1/1) ... [2021-11-12 23:05:40,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:05:40,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:42,920 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:42,924 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:43,086 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:43,088 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:43,131 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:43,132 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:05:44,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-12 23:05:44,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-12 23:05:44,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:44,320 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) [2021-11-12 23:05:44,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6fd50135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:44, skipping insertion in model container [2021-11-12 23:05:44,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:44,321 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:05:44,324 INFO L158 Benchmark]: Toolchain (without parser) took 3529.71ms. Allocated memory was 130.0MB in the beginning and 209.7MB in the end (delta: 79.7MB). Free memory was 100.8MB in the beginning and 109.4MB in the end (delta: -8.6MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2021-11-12 23:05:44,325 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:05:44,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3527.05ms. Allocated memory was 130.0MB in the beginning and 209.7MB in the end (delta: 79.7MB). Free memory was 100.4MB in the beginning and 109.4MB in the end (delta: -9.1MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2021-11-12 23:05:44,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3527.05ms. Allocated memory was 130.0MB in the beginning and 209.7MB in the end (delta: 79.7MB). Free memory was 100.4MB in the beginning and 109.4MB in the end (delta: -9.1MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7424]: 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_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:05:46,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:05:46,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:05:46,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:05:46,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:05:46,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:05:46,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:05:46,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:05:46,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:05:46,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:05:46,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:05:46,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:05:46,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:05:46,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:05:46,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:05:46,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:05:46,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:05:46,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:05:46,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:05:46,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:05:46,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:05:46,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:05:46,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:05:46,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:05:46,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:05:46,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:05:46,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:05:46,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:05:46,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:05:46,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:05:46,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:05:46,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:05:46,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:05:46,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:05:46,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:05:46,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:05:46,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:05:46,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:05:46,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:05:46,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:05:46,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:05:46,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:05:46,813 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:05:46,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:05:46,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:05:46,815 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:05:46,815 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:05:46,816 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:05:46,816 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:05:46,816 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:05:46,816 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:05:46,817 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:05:46,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:05:46,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:05:46,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:05:46,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:05:46,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:05:46,821 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:05:46,821 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:05:46,821 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:05:46,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:05:46,821 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:05:46,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:05:46,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:05:46,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:05:46,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:05:46,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:46,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:05:46,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:05:46,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:05:46,824 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:05:46,824 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:05:46,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:05:46,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:05:46,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:05:46,825 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_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f [2021-11-12 23:05:47,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:05:47,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:05:47,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:05:47,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:05:47,265 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:05:47,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 23:05:47,362 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data/c59ebcf5e/6fddc15517904d0e9e90cecc73a82ae0/FLAGb1c596eb0 [2021-11-12 23:05:48,485 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:05:48,486 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 23:05:48,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data/c59ebcf5e/6fddc15517904d0e9e90cecc73a82ae0/FLAGb1c596eb0 [2021-11-12 23:05:48,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/data/c59ebcf5e/6fddc15517904d0e9e90cecc73a82ae0 [2021-11-12 23:05:48,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:05:48,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:05:48,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:48,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:05:48,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:05:48,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:48" (1/1) ... [2021-11-12 23:05:48,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b0b42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:48, skipping insertion in model container [2021-11-12 23:05:48,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:48" (1/1) ... [2021-11-12 23:05:48,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:05:49,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:52,621 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-12 23:05:52,624 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-12 23:05:52,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:52,689 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:05:52,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:53,246 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-12 23:05:53,248 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-12 23:05:53,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:53,302 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:05:53,774 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-12 23:05:53,774 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-12 23:05:53,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:54,216 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:05:54,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54 WrapperNode [2021-11-12 23:05:54,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:54,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:05:54,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:05:54,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:05:54,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:54,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:54,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:05:54,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:05:54,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:05:54,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:05:54,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:54,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:54,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:54,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:54,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:54,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:55,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:55,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:05:55,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:05:55,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:05:55,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:05:55,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (1/1) ... [2021-11-12 23:05:55,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:55,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:05:55,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:05:55,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:05:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-12 23:05:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2021-11-12 23:05:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2021-11-12 23:05:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-12 23:05:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-12 23:05:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 23:05:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 23:05:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:05:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:05:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2021-11-12 23:05:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2021-11-12 23:05:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2021-11-12 23:05:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2021-11-12 23:05:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2021-11-12 23:05:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2021-11-12 23:05:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 23:05:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 23:05:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2021-11-12 23:05:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2021-11-12 23:05:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:05:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:05:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 23:05:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 23:05:55,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_87 [2021-11-12 23:05:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_87 [2021-11-12 23:05:55,168 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2021-11-12 23:05:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2021-11-12 23:05:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 23:05:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 23:05:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2021-11-12 23:05:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2021-11-12 23:05:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-12 23:05:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-12 23:05:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2021-11-12 23:05:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2021-11-12 23:05:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2021-11-12 23:05:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2021-11-12 23:05:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:05:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 23:05:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-12 23:05:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-12 23:05:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:05:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:05:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 23:05:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 23:05:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 23:05:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 23:05:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-12 23:05:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-12 23:05:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 23:05:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 23:05:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:05:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:05:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:05:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 23:05:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 23:05:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-12 23:05:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-12 23:05:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:05:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:05:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:05:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:05:55,177 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:05:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:05:55,178 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:05:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:05:55,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:05:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:05:55,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 23:05:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 23:05:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 23:05:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-12 23:05:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-12 23:05:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 23:05:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 23:05:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:05:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:05:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:05:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:05:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 23:05:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 23:05:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2021-11-12 23:05:55,181 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2021-11-12 23:05:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2021-11-12 23:05:55,181 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2021-11-12 23:05:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:05:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:05:55,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:05:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:05:55,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:05:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2021-11-12 23:05:55,183 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2021-11-12 23:05:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-12 23:05:55,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-12 23:05:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2021-11-12 23:05:55,183 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2021-11-12 23:05:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:05:55,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:05:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 23:05:55,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 23:05:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:05:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:05:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:05:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:05:55,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:05:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:05:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-12 23:05:55,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-12 23:05:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-12 23:05:55,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-12 23:05:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:05:55,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 23:05:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-12 23:05:55,190 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-12 23:05:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:05:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:05:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-12 23:05:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-12 23:05:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:05:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:05:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 23:05:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 23:05:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:05:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2021-11-12 23:05:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2021-11-12 23:05:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:05:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:05:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2021-11-12 23:05:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2021-11-12 23:05:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:05:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-12 23:05:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-12 23:05:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:05:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:05:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:05:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2021-11-12 23:05:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2021-11-12 23:05:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:05:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:05:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:05:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:05:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-12 23:05:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-12 23:05:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 23:05:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 23:05:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-12 23:05:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-12 23:05:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:05:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:05:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 23:05:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 23:05:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-12 23:05:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-12 23:05:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-12 23:05:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-12 23:05:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-12 23:05:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-12 23:05:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:05:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:05:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 23:05:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 23:05:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:05:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:05:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:05:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_86 [2021-11-12 23:05:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_86 [2021-11-12 23:05:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:05:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:05:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 23:05:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 23:05:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2021-11-12 23:05:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2021-11-12 23:05:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:05:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:05:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:05:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:05:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 23:05:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 23:05:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2021-11-12 23:05:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2021-11-12 23:05:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2021-11-12 23:05:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2021-11-12 23:05:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-12 23:05:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-12 23:05:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:05:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:05:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2021-11-12 23:05:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2021-11-12 23:05:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:05:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:05:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:05:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:05:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:05:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:05:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:05:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:05:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-12 23:05:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-12 23:05:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:05:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:05:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-12 23:05:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-12 23:05:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 23:05:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 23:05:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-12 23:05:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-12 23:05:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:05:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:05:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-12 23:05:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-12 23:05:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2021-11-12 23:05:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2021-11-12 23:06:00,159 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:06:38,981 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:06:40,200 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:06:40,200 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 23:06:40,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:40 BoogieIcfgContainer [2021-11-12 23:06:40,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:06:40,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:06:40,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:06:40,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:06:40,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:05:48" (1/3) ... [2021-11-12 23:06:40,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bb2abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:40, skipping insertion in model container [2021-11-12 23:06:40,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:54" (2/3) ... [2021-11-12 23:06:40,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bb2abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:40, skipping insertion in model container [2021-11-12 23:06:40,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:40" (3/3) ... [2021-11-12 23:06:40,215 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 23:06:40,221 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:06:40,222 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:06:40,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:06:40,299 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 [2021-11-12 23:06:40,299 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:06:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 2004 states, 1348 states have (on average 1.3048961424332344) internal successors, (1759), 1386 states have internal predecessors, (1759), 565 states have call successors, (565), 91 states have call predecessors, (565), 90 states have return successors, (559), 545 states have call predecessors, (559), 559 states have call successors, (559) [2021-11-12 23:06:40,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-12 23:06:40,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:40,414 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:40,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:40,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:40,421 INFO L85 PathProgramCache]: Analyzing trace with hash -539902053, now seen corresponding path program 1 times [2021-11-12 23:06:40,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:40,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813743129] [2021-11-12 23:06:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:40,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:40,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:40,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:40,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:06:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:44,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:44,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-11-12 23:06:45,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-12 23:06:46,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:06:46,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813743129] [2021-11-12 23:06:46,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813743129] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:46,208 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:46,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:06:46,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211992757] [2021-11-12 23:06:46,211 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:46,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:06:46,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:46,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:06:46,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:06:46,260 INFO L87 Difference]: Start difference. First operand has 2004 states, 1348 states have (on average 1.3048961424332344) internal successors, (1759), 1386 states have internal predecessors, (1759), 565 states have call successors, (565), 91 states have call predecessors, (565), 90 states have return successors, (559), 545 states have call predecessors, (559), 559 states have call successors, (559) Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-12 23:06:48,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:57,807 INFO L93 Difference]: Finished difference Result 7525 states and 10932 transitions. [2021-11-12 23:06:57,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:06:57,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 170 [2021-11-12 23:06:57,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:57,899 INFO L225 Difference]: With dead ends: 7525 [2021-11-12 23:06:57,899 INFO L226 Difference]: Without dead ends: 5409 [2021-11-12 23:06:57,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:06:57,931 INFO L933 BasicCegarLoop]: 4229 mSDtfsCounter, 6612 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 1042 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9570.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6612 SdHoareTripleChecker+Valid, 8576 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.23ms SdHoareTripleChecker+Time, 1042 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10793.24ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:57,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6612 Valid, 8576 Invalid, 2099 Unknown, 0 Unchecked, 81.23ms Time], IncrementalHoareTripleChecker [1042 Valid, 1056 Invalid, 1 Unknown, 0 Unchecked, 10793.24ms Time] [2021-11-12 23:06:57,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5409 states. [2021-11-12 23:06:58,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5409 to 5401. [2021-11-12 23:06:58,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 3637 states have (on average 1.2941985152598294) internal successors, (4707), 3750 states have internal predecessors, (4707), 1503 states have call successors, (1503), 262 states have call predecessors, (1503), 260 states have return successors, (1529), 1453 states have call predecessors, (1529), 1503 states have call successors, (1529) [2021-11-12 23:06:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7739 transitions. [2021-11-12 23:06:58,515 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7739 transitions. Word has length 170 [2021-11-12 23:06:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:58,519 INFO L470 AbstractCegarLoop]: Abstraction has 5401 states and 7739 transitions. [2021-11-12 23:06:58,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-12 23:06:58,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7739 transitions. [2021-11-12 23:06:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 23:06:58,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:58,538 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:58,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:58,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:06:58,765 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:58,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:58,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1205301942, now seen corresponding path program 1 times [2021-11-12 23:06:58,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:58,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890557244] [2021-11-12 23:06:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:58,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:58,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:58,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:58,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:07:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:02,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1637 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:07:02,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:07:03,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-12 23:07:03,942 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:03,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890557244] [2021-11-12 23:07:03,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890557244] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:03,948 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:03,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:07:03,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799248727] [2021-11-12 23:07:03,948 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:03,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:07:03,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:03,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:07:03,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:03,953 INFO L87 Difference]: Start difference. First operand 5401 states and 7739 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-12 23:07:06,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:14,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:14,856 INFO L93 Difference]: Finished difference Result 18698 states and 26787 transitions. [2021-11-12 23:07:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:07:14,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 157 [2021-11-12 23:07:14,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:15,003 INFO L225 Difference]: With dead ends: 18698 [2021-11-12 23:07:15,003 INFO L226 Difference]: Without dead ends: 13318 [2021-11-12 23:07:15,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:15,056 INFO L933 BasicCegarLoop]: 3835 mSDtfsCounter, 5411 mSDsluCounter, 3884 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 819 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8971.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5411 SdHoareTripleChecker+Valid, 7719 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.32ms SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9959.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:15,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5411 Valid, 7719 Invalid, 1870 Unknown, 0 Unchecked, 51.32ms Time], IncrementalHoareTripleChecker [819 Valid, 1050 Invalid, 1 Unknown, 0 Unchecked, 9959.14ms Time] [2021-11-12 23:07:15,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13318 states. [2021-11-12 23:07:15,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13318 to 13308. [2021-11-12 23:07:15,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13308 states, 8836 states have (on average 1.2906292440018108) internal successors, (11404), 9119 states have internal predecessors, (11404), 3794 states have call successors, (3794), 681 states have call predecessors, (3794), 677 states have return successors, (3820), 3678 states have call predecessors, (3820), 3794 states have call successors, (3820) [2021-11-12 23:07:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13308 states to 13308 states and 19018 transitions. [2021-11-12 23:07:15,965 INFO L78 Accepts]: Start accepts. Automaton has 13308 states and 19018 transitions. Word has length 157 [2021-11-12 23:07:15,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:15,969 INFO L470 AbstractCegarLoop]: Abstraction has 13308 states and 19018 transitions. [2021-11-12 23:07:15,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-12 23:07:15,970 INFO L276 IsEmpty]: Start isEmpty. Operand 13308 states and 19018 transitions. [2021-11-12 23:07:15,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-12 23:07:15,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:15,989 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2021-11-12 23:07:16,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:16,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:16,213 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:16,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:16,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1051261095, now seen corresponding path program 1 times [2021-11-12 23:07:16,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:16,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951146399] [2021-11-12 23:07:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:16,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:16,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:16,220 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:16,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:07:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:20,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 1867 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:07:20,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2021-11-12 23:07:21,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2021-11-12 23:07:21,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:21,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951146399] [2021-11-12 23:07:21,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951146399] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:21,648 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:21,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:07:21,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529834735] [2021-11-12 23:07:21,649 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:21,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:07:21,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:21,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:07:21,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:21,657 INFO L87 Difference]: Start difference. First operand 13308 states and 19018 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2021-11-12 23:07:23,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:31,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:31,082 INFO L93 Difference]: Finished difference Result 43383 states and 61329 transitions. [2021-11-12 23:07:31,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:07:31,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 223 [2021-11-12 23:07:31,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:31,348 INFO L225 Difference]: With dead ends: 43383 [2021-11-12 23:07:31,349 INFO L226 Difference]: Without dead ends: 30096 [2021-11-12 23:07:31,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:31,468 INFO L933 BasicCegarLoop]: 3712 mSDtfsCounter, 6247 mSDsluCounter, 3664 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1017 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7359.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6247 SdHoareTripleChecker+Valid, 7376 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.21ms SdHoareTripleChecker+Time, 1017 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8290.23ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:31,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6247 Valid, 7376 Invalid, 1794 Unknown, 0 Unchecked, 36.21ms Time], IncrementalHoareTripleChecker [1017 Valid, 776 Invalid, 1 Unknown, 0 Unchecked, 8290.23ms Time] [2021-11-12 23:07:31,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30096 states. [2021-11-12 23:07:33,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30096 to 30011. [2021-11-12 23:07:33,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30011 states, 20225 states have (on average 1.2793077873918417) internal successors, (25874), 20843 states have internal predecessors, (25874), 8116 states have call successors, (8116), 1739 states have call predecessors, (8116), 1669 states have return successors, (8240), 7749 states have call predecessors, (8240), 8116 states have call successors, (8240) [2021-11-12 23:07:33,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30011 states to 30011 states and 42230 transitions. [2021-11-12 23:07:33,373 INFO L78 Accepts]: Start accepts. Automaton has 30011 states and 42230 transitions. Word has length 223 [2021-11-12 23:07:33,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:33,374 INFO L470 AbstractCegarLoop]: Abstraction has 30011 states and 42230 transitions. [2021-11-12 23:07:33,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2021-11-12 23:07:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 30011 states and 42230 transitions. [2021-11-12 23:07:33,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-12 23:07:33,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:33,396 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:33,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:33,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:33,621 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:33,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1207436000, now seen corresponding path program 1 times [2021-11-12 23:07:33,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:33,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768092303] [2021-11-12 23:07:33,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:33,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:33,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:33,626 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:33,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:07:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:37,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:07:37,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-12 23:07:38,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2021-11-12 23:07:38,652 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:38,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768092303] [2021-11-12 23:07:38,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768092303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:38,653 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:38,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:07:38,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279842766] [2021-11-12 23:07:38,654 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:38,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:07:38,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:38,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:07:38,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:07:38,656 INFO L87 Difference]: Start difference. First operand 30011 states and 42230 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-12 23:07:40,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:43,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:43,128 INFO L93 Difference]: Finished difference Result 81487 states and 114862 transitions. [2021-11-12 23:07:43,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:07:43,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 226 [2021-11-12 23:07:43,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:43,468 INFO L225 Difference]: With dead ends: 81487 [2021-11-12 23:07:43,468 INFO L226 Difference]: Without dead ends: 51508 [2021-11-12 23:07:43,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:07:43,742 INFO L933 BasicCegarLoop]: 3344 mSDtfsCounter, 2427 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2387.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 6048 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.66ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2479.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:43,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2427 Valid, 6048 Invalid, 56 Unknown, 0 Unchecked, 11.66ms Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2479.86ms Time] [2021-11-12 23:07:43,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51508 states. [2021-11-12 23:07:46,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51508 to 51494. [2021-11-12 23:07:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51494 states, 34665 states have (on average 1.2850713976633492) internal successors, (44547), 35771 states have internal predecessors, (44547), 13862 states have call successors, (13862), 3089 states have call predecessors, (13862), 2966 states have return successors, (14119), 13187 states have call predecessors, (14119), 13862 states have call successors, (14119) [2021-11-12 23:07:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51494 states to 51494 states and 72528 transitions. [2021-11-12 23:07:46,986 INFO L78 Accepts]: Start accepts. Automaton has 51494 states and 72528 transitions. Word has length 226 [2021-11-12 23:07:46,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:46,988 INFO L470 AbstractCegarLoop]: Abstraction has 51494 states and 72528 transitions. [2021-11-12 23:07:46,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-12 23:07:46,989 INFO L276 IsEmpty]: Start isEmpty. Operand 51494 states and 72528 transitions. [2021-11-12 23:07:47,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-12 23:07:47,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:47,013 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:47,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:47,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:47,230 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:47,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:47,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1524166534, now seen corresponding path program 1 times [2021-11-12 23:07:47,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:47,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362372908] [2021-11-12 23:07:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:47,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:47,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:47,236 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:47,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:07:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:51,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 1904 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:07:51,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:52,220 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-12 23:07:52,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:52,994 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-12 23:07:52,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:52,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362372908] [2021-11-12 23:07:52,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362372908] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:52,994 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:52,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:07:52,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30296495] [2021-11-12 23:07:52,995 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:52,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:07:52,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:52,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:07:52,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:07:52,997 INFO L87 Difference]: Start difference. First operand 51494 states and 72528 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2021-11-12 23:07:55,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:08:07,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:08:07,806 INFO L93 Difference]: Finished difference Result 205016 states and 288954 transitions. [2021-11-12 23:08:07,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:08:07,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) Word has length 246 [2021-11-12 23:08:07,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:08:08,882 INFO L225 Difference]: With dead ends: 205016 [2021-11-12 23:08:08,882 INFO L226 Difference]: Without dead ends: 153554 [2021-11-12 23:08:09,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:08:09,293 INFO L933 BasicCegarLoop]: 4546 mSDtfsCounter, 6719 mSDsluCounter, 4456 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 846 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8192.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6719 SdHoareTripleChecker+Valid, 9002 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.24ms SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9160.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:08:09,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6719 Valid, 9002 Invalid, 1934 Unknown, 0 Unchecked, 32.24ms Time], IncrementalHoareTripleChecker [846 Valid, 1087 Invalid, 1 Unknown, 0 Unchecked, 9160.35ms Time] [2021-11-12 23:08:09,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153554 states. [2021-11-12 23:08:16,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153554 to 153334. [2021-11-12 23:08:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153334 states, 102983 states have (on average 1.2852315430702155) internal successors, (132357), 106445 states have internal predecessors, (132357), 41454 states have call successors, (41454), 9265 states have call predecessors, (41454), 8896 states have return successors, (42225), 39285 states have call predecessors, (42225), 41454 states have call successors, (42225) [2021-11-12 23:08:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153334 states to 153334 states and 216036 transitions. [2021-11-12 23:08:18,018 INFO L78 Accepts]: Start accepts. Automaton has 153334 states and 216036 transitions. Word has length 246 [2021-11-12 23:08:18,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:08:18,019 INFO L470 AbstractCegarLoop]: Abstraction has 153334 states and 216036 transitions. [2021-11-12 23:08:18,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2021-11-12 23:08:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 153334 states and 216036 transitions. [2021-11-12 23:08:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-12 23:08:18,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:08:18,053 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:08:18,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:08:18,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:08:18,277 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:08:18,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:08:18,278 INFO L85 PathProgramCache]: Analyzing trace with hash 146357269, now seen corresponding path program 1 times [2021-11-12 23:08:18,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:08:18,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956493025] [2021-11-12 23:08:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:08:18,281 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:08:18,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:08:18,282 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:08:18,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21eeafb9-d981-4cc2-b9c0-77ea04077bce/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:08:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:22,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:08:22,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:08:23,245 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-12 23:08:23,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2021-11-12 23:08:23,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:08:23,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956493025] [2021-11-12 23:08:23,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956493025] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:08:23,898 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:08:23,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:08:23,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086020250] [2021-11-12 23:08:23,898 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:08:23,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:08:23,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:08:23,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:08:23,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:08:23,901 INFO L87 Difference]: Start difference. First operand 153334 states and 216036 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-12 23:08:26,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:08:43,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:08:43,183 INFO L93 Difference]: Finished difference Result 396958 states and 558908 transitions. [2021-11-12 23:08:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:08:43,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 242 [2021-11-12 23:08:43,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:08:44,909 INFO L225 Difference]: With dead ends: 396958 [2021-11-12 23:08:44,909 INFO L226 Difference]: Without dead ends: 243656 [2021-11-12 23:08:46,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:08:46,036 INFO L933 BasicCegarLoop]: 5193 mSDtfsCounter, 4767 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 446 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7690.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4767 SdHoareTripleChecker+Valid, 8878 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.92ms SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8545.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:08:46,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4767 Valid, 8878 Invalid, 1609 Unknown, 0 Unchecked, 26.92ms Time], IncrementalHoareTripleChecker [446 Valid, 1162 Invalid, 1 Unknown, 0 Unchecked, 8545.80ms Time] [2021-11-12 23:08:46,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243656 states.