./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:55:00,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:55:00,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:55:00,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:55:00,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:55:00,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:55:00,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:55:00,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:55:00,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:55:00,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:55:00,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:55:00,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:55:00,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:55:00,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:55:00,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:55:00,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:55:00,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:55:00,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:55:00,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:55:01,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:55:01,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:55:01,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:55:01,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:55:01,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:55:01,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:55:01,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:55:01,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:55:01,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:55:01,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:55:01,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:55:01,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:55:01,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:55:01,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:55:01,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:55:01,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:55:01,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:55:01,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:55:01,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:55:01,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:55:01,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:55:01,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:55:01,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:55:01,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:55:01,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:55:01,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:55:01,078 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:55:01,078 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:55:01,079 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:55:01,079 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:55:01,079 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:55:01,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:55:01,086 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:55:01,087 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:55:01,087 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:55:01,088 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:55:01,088 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:55:01,088 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:55:01,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:55:01,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:55:01,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:55:01,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:55:01,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:55:01,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:55:01,090 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:55:01,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:55:01,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:55:01,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:55:01,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:55:01,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:55:01,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:01,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:55:01,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:55:01,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:55:01,094 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:55:01,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:55:01,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:55:01,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:55:01,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:55:01,095 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_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2021-11-07 01:55:01,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:55:01,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:55:01,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:55:01,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:55:01,452 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:55:01,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-07 01:55:01,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data/b1e1323fa/cf58a5b967d24046910a50f3009dbac3/FLAG44c2b31c9 [2021-11-07 01:55:02,654 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:55:02,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-07 01:55:02,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data/b1e1323fa/cf58a5b967d24046910a50f3009dbac3/FLAG44c2b31c9 [2021-11-07 01:55:02,894 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data/b1e1323fa/cf58a5b967d24046910a50f3009dbac3 [2021-11-07 01:55:02,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:55:02,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:55:02,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:02,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:55:02,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:55:02,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:02" (1/1) ... [2021-11-07 01:55:02,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dae0568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:02, skipping insertion in model container [2021-11-07 01:55:02,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:02" (1/1) ... [2021-11-07 01:55:02,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:55:03,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:55:05,775 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,785 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,809 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,834 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,852 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,855 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,878 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,889 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,902 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,929 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:05,949 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,014 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,024 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,036 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,048 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,097 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,106 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,114 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,122 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,134 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,142 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,150 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,159 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,170 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,179 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,197 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,206 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,214 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,223 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,236 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,269 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,299 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,325 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,333 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:06,343 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,436 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,437 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,441 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,442 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,443 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,444 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,454 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,454 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,455 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,455 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,455 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,456 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,456 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,456 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,457 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,457 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,457 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,458 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,458 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,458 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,459 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,461 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,461 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,467 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,468 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,468 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,469 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,469 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,469 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,470 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,470 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,470 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,471 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,471 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,471 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,472 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,472 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,473 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,474 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,475 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,506 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,538 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,547 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,580 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:07,594 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:55:08,474 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-07 01:55:08,477 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-07 01:55:08,478 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-07 01:55:08,479 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-07 01:55:08,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:08,649 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:55:08,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52cea689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:08, skipping insertion in model container [2021-11-07 01:55:08,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:08,650 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:55:08,653 INFO L168 Benchmark]: Toolchain (without parser) took 5751.98 ms. Allocated memory was 102.8 MB in the beginning and 203.4 MB in the end (delta: 100.7 MB). Free memory was 59.9 MB in the beginning and 115.6 MB in the end (delta: -55.6 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:55:08,654 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 76.8 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:55:08,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5748.29 ms. Allocated memory was 102.8 MB in the beginning and 203.4 MB in the end (delta: 100.7 MB). Free memory was 59.7 MB in the beginning and 115.6 MB in the end (delta: -55.9 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:55:08,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 76.8 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5748.29 ms. Allocated memory was 102.8 MB in the beginning and 203.4 MB in the end (delta: 100.7 MB). Free memory was 59.7 MB in the beginning and 115.6 MB in the end (delta: -55.9 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 8440]: 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_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:55:11,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:55:11,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:55:11,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:55:11,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:55:11,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:55:11,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:55:11,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:55:11,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:55:11,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:55:11,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:55:11,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:55:11,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:55:11,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:55:11,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:55:11,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:55:11,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:55:11,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:55:11,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:55:11,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:55:11,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:55:11,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:55:11,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:55:11,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:55:11,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:55:11,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:55:11,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:55:11,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:55:11,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:55:11,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:55:11,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:55:11,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:55:11,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:55:11,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:55:11,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:55:11,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:55:11,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:55:11,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:55:11,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:55:11,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:55:11,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:55:11,302 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:55:11,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:55:11,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:55:11,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:55:11,352 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:55:11,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:55:11,353 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:55:11,353 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:55:11,354 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:55:11,355 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:55:11,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:55:11,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:55:11,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:55:11,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:55:11,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:55:11,359 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:55:11,359 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:55:11,359 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:55:11,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:55:11,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:55:11,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:55:11,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:55:11,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:55:11,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:55:11,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:11,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:55:11,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:55:11,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:55:11,362 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:55:11,362 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:55:11,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:55:11,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:55:11,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:55:11,363 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_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2021-11-07 01:55:11,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:55:11,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:55:11,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:55:11,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:55:11,841 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:55:11,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-07 01:55:11,933 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data/3c25720a4/a438928f224449b0b4025c61368bc652/FLAG80a73125d [2021-11-07 01:55:13,313 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:55:13,314 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-07 01:55:13,375 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data/3c25720a4/a438928f224449b0b4025c61368bc652/FLAG80a73125d [2021-11-07 01:55:13,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/data/3c25720a4/a438928f224449b0b4025c61368bc652 [2021-11-07 01:55:13,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:55:13,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:55:13,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:13,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:55:13,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:55:13,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:13" (1/1) ... [2021-11-07 01:55:13,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c0d3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:13, skipping insertion in model container [2021-11-07 01:55:13,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:13" (1/1) ... [2021-11-07 01:55:13,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:55:13,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:55:18,803 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-07 01:55:18,806 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-07 01:55:18,807 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-07 01:55:18,808 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-07 01:55:18,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:18,959 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:55:19,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:55:19,621 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-07 01:55:19,622 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-07 01:55:19,622 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-07 01:55:19,623 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-07 01:55:19,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:19,742 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:55:20,589 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-07 01:55:20,590 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-07 01:55:20,590 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-07 01:55:20,592 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_21091c19-e5af-419e-9502-320d1572ac8e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-07 01:55:20,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:20,877 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:55:20,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20 WrapperNode [2021-11-07 01:55:20,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:20,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:55:20,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:55:20,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:55:20,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:21,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:21,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:55:21,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:55:21,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:55:21,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:55:21,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:21,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:21,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:21,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:22,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:23,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:23,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:23,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:55:23,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:55:23,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:55:23,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:55:23,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (1/1) ... [2021-11-07 01:55:23,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:23,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:55:23,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:55:23,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:55:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-07 01:55:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-07 01:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 01:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:55:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-07 01:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-07 01:55:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-07 01:55:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-07 01:55:23,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-07 01:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:55:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:55:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:55:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:55:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:55:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:55:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:55:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:55:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:55:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-07 01:55:23,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-07 01:55:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:55:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:55:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:58:33,893 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0bv32; [2021-11-07 01:58:33,893 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 01:58:33,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 01:58:33,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0bv32; [2021-11-07 01:58:33,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0bv32; [2021-11-07 01:58:33,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0bv32; [2021-11-07 01:58:33,895 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 01:58:33,896 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0bv32; [2021-11-07 01:58:33,896 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 01:58:33,897 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-07 01:58:33,897 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 01:58:33,898 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 01:58:33,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:58:33,948 INFO L299 CfgBuilder]: Removed 5135 assume(true) statements. [2021-11-07 01:58:33,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:58:33 BoogieIcfgContainer [2021-11-07 01:58:33,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:58:33,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:58:33,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:58:33,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:58:33,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:55:13" (1/3) ... [2021-11-07 01:58:33,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18241aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:58:33, skipping insertion in model container [2021-11-07 01:58:33,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:20" (2/3) ... [2021-11-07 01:58:33,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18241aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:58:33, skipping insertion in model container [2021-11-07 01:58:33,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:58:33" (3/3) ... [2021-11-07 01:58:33,963 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-07 01:58:33,968 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:58:33,968 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-11-07 01:58:34,041 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:58:34,047 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:58:34,048 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-11-07 01:58:34,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 5286 states, 5213 states have (on average 1.317283713792442) internal successors, (6867), 5266 states have internal predecessors, (6867), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-07 01:58:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-07 01:58:34,162 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:34,163 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:34,164 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 01:58:34,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:34,169 INFO L85 PathProgramCache]: Analyzing trace with hash 932015297, now seen corresponding path program 1 times [2021-11-07 01:58:34,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:34,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130960387] [2021-11-07 01:58:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:34,203 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:34,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:34,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:34,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:58:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:46,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 5898 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:58:46,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:47,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:48,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:48,045 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:48,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130960387] [2021-11-07 01:58:48,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130960387] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:48,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:48,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:58:48,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591038806] [2021-11-07 01:58:48,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:58:48,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:48,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:58:48,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:58:48,081 INFO L87 Difference]: Start difference. First operand has 5286 states, 5213 states have (on average 1.317283713792442) internal successors, (6867), 5266 states have internal predecessors, (6867), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:53,239 INFO L93 Difference]: Finished difference Result 19180 states and 25106 transitions. [2021-11-07 01:58:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:58:53,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2021-11-07 01:58:53,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:53,355 INFO L225 Difference]: With dead ends: 19180 [2021-11-07 01:58:53,355 INFO L226 Difference]: Without dead ends: 13241 [2021-11-07 01:58:53,398 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:58:53,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13241 states. [2021-11-07 01:58:53,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13241 to 13169. [2021-11-07 01:58:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13169 states, 13058 states have (on average 1.240771940572829) internal successors, (16202), 13111 states have internal predecessors, (16202), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-11-07 01:58:54,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13169 states to 13169 states and 16292 transitions. [2021-11-07 01:58:54,076 INFO L78 Accepts]: Start accepts. Automaton has 13169 states and 16292 transitions. Word has length 165 [2021-11-07 01:58:54,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:54,082 INFO L470 AbstractCegarLoop]: Abstraction has 13169 states and 16292 transitions. [2021-11-07 01:58:54,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 13169 states and 16292 transitions. [2021-11-07 01:58:54,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-07 01:58:54,095 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:54,096 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:54,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:54,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:54,310 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 01:58:54,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:54,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1822623447, now seen corresponding path program 1 times [2021-11-07 01:58:54,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:54,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105848024] [2021-11-07 01:58:54,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:54,332 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:54,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:54,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:54,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:59:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:07,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 5941 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:59:07,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:08,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:08,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:08,821 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:08,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105848024] [2021-11-07 01:59:08,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105848024] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:08,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:08,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:59:08,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294550869] [2021-11-07 01:59:08,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:59:08,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:08,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:59:08,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:59:08,827 INFO L87 Difference]: Start difference. First operand 13169 states and 16292 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:14,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:14,802 INFO L93 Difference]: Finished difference Result 50413 states and 62655 transitions. [2021-11-07 01:59:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:59:14,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-11-07 01:59:14,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:15,027 INFO L225 Difference]: With dead ends: 50413 [2021-11-07 01:59:15,028 INFO L226 Difference]: Without dead ends: 37640 [2021-11-07 01:59:15,075 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:59:15,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37640 states. [2021-11-07 01:59:16,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37640 to 36860. [2021-11-07 01:59:16,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36860 states, 36635 states have (on average 1.2488876757199399) internal successors, (45753), 36688 states have internal predecessors, (45753), 135 states have call successors, (135), 36 states have call predecessors, (135), 36 states have return successors, (165), 135 states have call predecessors, (165), 135 states have call successors, (165) [2021-11-07 01:59:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36860 states to 36860 states and 46053 transitions. [2021-11-07 01:59:16,491 INFO L78 Accepts]: Start accepts. Automaton has 36860 states and 46053 transitions. Word has length 173 [2021-11-07 01:59:16,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:16,496 INFO L470 AbstractCegarLoop]: Abstraction has 36860 states and 46053 transitions. [2021-11-07 01:59:16,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:16,497 INFO L276 IsEmpty]: Start isEmpty. Operand 36860 states and 46053 transitions. [2021-11-07 01:59:16,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-07 01:59:16,502 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:16,502 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:59:16,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:16,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:16,718 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 01:59:16,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:16,718 INFO L85 PathProgramCache]: Analyzing trace with hash -275218893, now seen corresponding path program 1 times [2021-11-07 01:59:16,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:16,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743423192] [2021-11-07 01:59:16,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:16,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:16,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:16,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:16,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:59:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:30,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 5945 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:59:30,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:30,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:30,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:31,189 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:31,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743423192] [2021-11-07 01:59:31,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743423192] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:31,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:31,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:59:31,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732900854] [2021-11-07 01:59:31,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:59:31,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:31,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:59:31,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:59:31,192 INFO L87 Difference]: Start difference. First operand 36860 states and 46053 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:37,666 INFO L93 Difference]: Finished difference Result 111406 states and 139983 transitions. [2021-11-07 01:59:37,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:59:37,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-11-07 01:59:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:38,008 INFO L225 Difference]: With dead ends: 111406 [2021-11-07 01:59:38,009 INFO L226 Difference]: Without dead ends: 74942 [2021-11-07 01:59:38,111 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:59:38,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74942 states. [2021-11-07 01:59:41,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74942 to 74738. [2021-11-07 01:59:41,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74738 states, 74300 states have (on average 1.2569448183041723) internal successors, (93391), 74353 states have internal predecessors, (93391), 300 states have call successors, (300), 84 states have call predecessors, (300), 84 states have return successors, (360), 300 states have call predecessors, (360), 300 states have call successors, (360) [2021-11-07 01:59:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74738 states to 74738 states and 94051 transitions. [2021-11-07 01:59:41,785 INFO L78 Accepts]: Start accepts. Automaton has 74738 states and 94051 transitions. Word has length 175 [2021-11-07 01:59:41,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:41,786 INFO L470 AbstractCegarLoop]: Abstraction has 74738 states and 94051 transitions. [2021-11-07 01:59:41,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:41,787 INFO L276 IsEmpty]: Start isEmpty. Operand 74738 states and 94051 transitions. [2021-11-07 01:59:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-07 01:59:41,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:41,792 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:59:41,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:42,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:42,018 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 01:59:42,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:42,018 INFO L85 PathProgramCache]: Analyzing trace with hash 897569508, now seen corresponding path program 1 times [2021-11-07 01:59:42,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:42,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406503534] [2021-11-07 01:59:42,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:42,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:42,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:42,029 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:42,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:59:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:55,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 5970 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:59:55,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:56,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:56,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:56,490 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:56,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406503534] [2021-11-07 01:59:56,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406503534] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:56,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:56,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:59:56,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722444079] [2021-11-07 01:59:56,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:59:56,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:56,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:59:56,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:59:56,493 INFO L87 Difference]: Start difference. First operand 74738 states and 94051 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:00:07,143 INFO L93 Difference]: Finished difference Result 288699 states and 364857 transitions. [2021-11-07 02:00:07,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:00:07,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-11-07 02:00:07,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:00:08,762 INFO L225 Difference]: With dead ends: 288699 [2021-11-07 02:00:08,763 INFO L226 Difference]: Without dead ends: 214357 [2021-11-07 02:00:09,237 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:00:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214357 states. [2021-11-07 02:00:17,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214357 to 211877. [2021-11-07 02:00:17,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211877 states, 210671 states have (on average 1.260031043665241) internal successors, (265452), 210724 states have internal predecessors, (265452), 900 states have call successors, (900), 252 states have call predecessors, (900), 252 states have return successors, (1920), 900 states have call predecessors, (1920), 900 states have call successors, (1920) [2021-11-07 02:00:18,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211877 states to 211877 states and 268272 transitions. [2021-11-07 02:00:18,791 INFO L78 Accepts]: Start accepts. Automaton has 211877 states and 268272 transitions. Word has length 178 [2021-11-07 02:00:18,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:00:18,792 INFO L470 AbstractCegarLoop]: Abstraction has 211877 states and 268272 transitions. [2021-11-07 02:00:18,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:18,793 INFO L276 IsEmpty]: Start isEmpty. Operand 211877 states and 268272 transitions. [2021-11-07 02:00:18,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-07 02:00:18,804 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:00:18,804 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:00:18,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 02:00:19,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:00:19,030 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 02:00:19,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:00:19,030 INFO L85 PathProgramCache]: Analyzing trace with hash -174817095, now seen corresponding path program 1 times [2021-11-07 02:00:19,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:00:19,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105316812] [2021-11-07 02:00:19,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:19,041 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:00:19,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:00:19,042 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:00:19,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21091c19-e5af-419e-9502-320d1572ac8e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:00:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:33,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 5994 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:00:33,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:00:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:33,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:00:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:34,007 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:00:34,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105316812] [2021-11-07 02:00:34,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105316812] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:00:34,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:00:34,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:00:34,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806438623] [2021-11-07 02:00:34,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:00:34,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:00:34,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:00:34,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:00:34,011 INFO L87 Difference]: Start difference. First operand 211877 states and 268272 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)