./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14ec046978052198cd587531ac5cc6873edc7e25b4a41979dad16fe919a1b16d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:40:26,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:40:26,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:40:26,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:40:26,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:40:26,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:40:26,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:40:26,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:40:26,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:40:26,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:40:26,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:40:26,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:40:26,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:40:26,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:40:26,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:40:26,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:40:26,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:40:26,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:40:26,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:40:26,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:40:26,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:40:26,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:40:26,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:40:26,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:40:26,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:40:26,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:40:26,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:40:26,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:40:26,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:40:26,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:40:26,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:40:26,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:40:26,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:40:26,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:40:26,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:40:26,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:40:26,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:40:26,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:40:26,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:40:26,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:40:26,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:40:26,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:40:26,408 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:40:26,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:40:26,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:40:26,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:40:26,410 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:40:26,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:40:26,411 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:40:26,411 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:40:26,417 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:40:26,418 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:40:26,419 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:40:26,419 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:40:26,419 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:40:26,420 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:40:26,420 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:40:26,420 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:40:26,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:40:26,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:40:26,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:40:26,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:40:26,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:40:26,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:40:26,422 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:40:26,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:40:26,423 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:40:26,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:40:26,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:40:26,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:40:26,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:40:26,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:40:26,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:40:26,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:40:26,426 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:40:26,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:40:26,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:40:26,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:40:26,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:40:26,427 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_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14ec046978052198cd587531ac5cc6873edc7e25b4a41979dad16fe919a1b16d [2021-11-19 14:40:26,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:40:26,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:40:26,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:40:26,801 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:40:26,802 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:40:26,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 14:40:26,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data/a57d210e7/7436d8859ff54df1b59af6180e9aaa09/FLAGbb068ef0b [2021-11-19 14:40:28,128 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:40:28,128 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 14:40:28,199 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data/a57d210e7/7436d8859ff54df1b59af6180e9aaa09/FLAGbb068ef0b [2021-11-19 14:40:28,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data/a57d210e7/7436d8859ff54df1b59af6180e9aaa09 [2021-11-19 14:40:28,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:40:28,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:40:28,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:28,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:40:28,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:40:28,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:28" (1/1) ... [2021-11-19 14:40:28,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@90559e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:28, skipping insertion in model container [2021-11-19 14:40:28,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:28" (1/1) ... [2021-11-19 14:40:28,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:40:28,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:40:31,946 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,286 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,289 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,346 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,349 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,350 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,359 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,360 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,475 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,475 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,484 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,492 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,539 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,542 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,545 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,557 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,794 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,804 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,806 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,886 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,895 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,912 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,929 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,939 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,949 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,960 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,968 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,975 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,983 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,990 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:32,997 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,003 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,023 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,034 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,054 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,063 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,076 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,077 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,084 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,085 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,092 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,092 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,487 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,513 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,532 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,533 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,541 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,542 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,576 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:33,588 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:40:34,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i[494588,494601] [2021-11-19 14:40:34,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i[494733,494746] [2021-11-19 14:40:34,774 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:34,871 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:40:34,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f86c358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:34, skipping insertion in model container [2021-11-19 14:40:34,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:34,873 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:40:34,876 INFO L158 Benchmark]: Toolchain (without parser) took 6528.47ms. Allocated memory was 115.3MB in the beginning and 226.5MB in the end (delta: 111.1MB). Free memory was 64.6MB in the beginning and 140.5MB in the end (delta: -75.9MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2021-11-19 14:40:34,877 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 71.8MB in the beginning and 71.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:40:34,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6522.52ms. Allocated memory was 115.3MB in the beginning and 226.5MB in the end (delta: 111.1MB). Free memory was 64.6MB in the beginning and 140.5MB in the end (delta: -75.9MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2021-11-19 14:40:34,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 71.8MB in the beginning and 71.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6522.52ms. Allocated memory was 115.3MB in the beginning and 226.5MB in the end (delta: 111.1MB). Free memory was 64.6MB in the beginning and 140.5MB in the end (delta: -75.9MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6966]: 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_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14ec046978052198cd587531ac5cc6873edc7e25b4a41979dad16fe919a1b16d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:40:37,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:40:37,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:40:37,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:40:37,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:40:37,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:40:37,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:40:37,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:40:37,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:40:37,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:40:37,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:40:37,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:40:37,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:40:37,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:40:37,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:40:37,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:40:37,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:40:37,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:40:37,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:40:37,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:40:37,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:40:37,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:40:37,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:40:37,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:40:37,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:40:37,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:40:37,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:40:37,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:40:37,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:40:37,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:40:37,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:40:37,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:40:37,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:40:37,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:40:37,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:40:37,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:40:37,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:40:37,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:40:37,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:40:37,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:40:37,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:40:37,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:40:37,384 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:40:37,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:40:37,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:40:37,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:40:37,386 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:40:37,386 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:40:37,387 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:40:37,387 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:40:37,387 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:40:37,387 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:40:37,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:40:37,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:40:37,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:40:37,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:40:37,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:40:37,389 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:40:37,390 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:40:37,390 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:40:37,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:40:37,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:40:37,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:40:37,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:40:37,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:40:37,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:40:37,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:40:37,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:40:37,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:40:37,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:40:37,393 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:40:37,393 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:40:37,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:40:37,393 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:40:37,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:40:37,394 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_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14ec046978052198cd587531ac5cc6873edc7e25b4a41979dad16fe919a1b16d [2021-11-19 14:40:37,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:40:37,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:40:37,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:40:37,784 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:40:37,785 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:40:37,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 14:40:37,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data/062a32a94/ee85204fe8384f078415ed36947d157c/FLAGd715968a6 [2021-11-19 14:40:38,949 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:40:38,949 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 14:40:39,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data/062a32a94/ee85204fe8384f078415ed36947d157c/FLAGd715968a6 [2021-11-19 14:40:39,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/data/062a32a94/ee85204fe8384f078415ed36947d157c [2021-11-19 14:40:39,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:40:39,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:40:39,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:39,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:40:39,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:40:39,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:39" (1/1) ... [2021-11-19 14:40:39,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@108bf786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:39, skipping insertion in model container [2021-11-19 14:40:39,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:39" (1/1) ... [2021-11-19 14:40:39,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:40:39,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:40:45,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i[494588,494601] [2021-11-19 14:40:45,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i[494733,494746] [2021-11-19 14:40:45,672 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:45,742 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:40:45,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:40:46,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i[494588,494601] [2021-11-19 14:40:46,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i[494733,494746] [2021-11-19 14:40:46,459 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:46,521 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:40:47,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i[494588,494601] [2021-11-19 14:40:47,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i[494733,494746] [2021-11-19 14:40:47,191 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:47,808 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:40:47,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47 WrapperNode [2021-11-19 14:40:47,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:47,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:40:47,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:40:47,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:40:47,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:48,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:48,440 INFO L137 Inliner]: procedures = 700, calls = 4349, calls flagged for inlining = 340, calls inlined = 320, statements flattened = 10058 [2021-11-19 14:40:48,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:40:48,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:40:48,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:40:48,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:40:48,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:48,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:48,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:48,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:48,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:48,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:48,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:49,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:40:49,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:40:49,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:40:49,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:40:49,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (1/1) ... [2021-11-19 14:40:49,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:40:49,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:40:49,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:40:49,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:40:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-19 14:40:49,122 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-19 14:40:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2021-11-19 14:40:49,122 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2021-11-19 14:40:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2021-11-19 14:40:49,123 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2021-11-19 14:40:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:40:49,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:40:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:40:49,123 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:40:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_132 [2021-11-19 14:40:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_132 [2021-11-19 14:40:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-19 14:40:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-19 14:40:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-19 14:40:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-19 14:40:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_133 [2021-11-19 14:40:49,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_133 [2021-11-19 14:40:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:40:49,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:40:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2021-11-19 14:40:49,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2021-11-19 14:40:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2021-11-19 14:40:49,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2021-11-19 14:40:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-19 14:40:49,126 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-19 14:40:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-19 14:40:49,126 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-19 14:40:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-19 14:40:49,127 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-19 14:40:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:40:49,127 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:40:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-19 14:40:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-19 14:40:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2021-11-19 14:40:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2021-11-19 14:40:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:40:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:40:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 14:40:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 14:40:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2021-11-19 14:40:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2021-11-19 14:40:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2021-11-19 14:40:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2021-11-19 14:40:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2021-11-19 14:40:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2021-11-19 14:40:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2021-11-19 14:40:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2021-11-19 14:40:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2021-11-19 14:40:49,132 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2021-11-19 14:40:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2021-11-19 14:40:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2021-11-19 14:40:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-19 14:40:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-19 14:40:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2021-11-19 14:40:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2021-11-19 14:40:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2021-11-19 14:40:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2021-11-19 14:40:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-19 14:40:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-19 14:40:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-19 14:40:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-19 14:40:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:40:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:40:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:40:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:40:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2021-11-19 14:40:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2021-11-19 14:40:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:40:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 14:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 14:40:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2021-11-19 14:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2021-11-19 14:40:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-19 14:40:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-19 14:40:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:40:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:40:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:40:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:40:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 14:40:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 14:40:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-19 14:40:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-19 14:40:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:40:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2021-11-19 14:40:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2021-11-19 14:40:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_106 [2021-11-19 14:40:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_106 [2021-11-19 14:40:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-19 14:40:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-19 14:40:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:40:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:40:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_103 [2021-11-19 14:40:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_103 [2021-11-19 14:40:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:40:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:40:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2021-11-19 14:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2021-11-19 14:40:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 14:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 14:40:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-19 14:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-19 14:40:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2021-11-19 14:40:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2021-11-19 14:40:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2021-11-19 14:40:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2021-11-19 14:40:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:40:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:40:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2021-11-19 14:40:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2021-11-19 14:40:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:40:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:40:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2021-11-19 14:40:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2021-11-19 14:40:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2021-11-19 14:40:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2021-11-19 14:40:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:40:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:40:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2021-11-19 14:40:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2021-11-19 14:40:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2021-11-19 14:40:49,160 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2021-11-19 14:40:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 14:40:49,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 14:40:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:40:49,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:40:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2021-11-19 14:40:49,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2021-11-19 14:40:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 14:40:49,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 14:40:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:40:49,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:40:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2021-11-19 14:40:49,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2021-11-19 14:40:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:40:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:40:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:40:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:40:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:40:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:40:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:40:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:40:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-19 14:40:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-19 14:40:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2021-11-19 14:40:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2021-11-19 14:40:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-19 14:40:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-19 14:40:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:40:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:40:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:40:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:40:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-19 14:40:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-19 14:40:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:40:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:40:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:40:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:40:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:40:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 14:40:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 14:40:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-19 14:40:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-19 14:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:40:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:40:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:40:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:40:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:40:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:40:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:40:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:40:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:40:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2021-11-19 14:40:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2021-11-19 14:40:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:40:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:40:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 14:40:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 14:40:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2021-11-19 14:40:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2021-11-19 14:40:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-19 14:40:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-19 14:40:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 14:40:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 14:40:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 14:40:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 14:40:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-19 14:40:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-19 14:40:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:40:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:40:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:40:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:40:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:40:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:40:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:40:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:40:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2021-11-19 14:40:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2021-11-19 14:40:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:40:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:40:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2021-11-19 14:40:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2021-11-19 14:40:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:40:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2021-11-19 14:40:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2021-11-19 14:40:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:40:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:40:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:40:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:40:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2021-11-19 14:40:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2021-11-19 14:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:40:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_158 [2021-11-19 14:40:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_158 [2021-11-19 14:40:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:40:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:40:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2021-11-19 14:40:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2021-11-19 14:40:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:40:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2021-11-19 14:40:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2021-11-19 14:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 14:40:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 14:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2021-11-19 14:40:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2021-11-19 14:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 14:40:49,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 14:40:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-19 14:40:49,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-19 14:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 14:40:49,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 14:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:40:49,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:40:49,184 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:40:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:40:49,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:40:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2021-11-19 14:40:49,188 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2021-11-19 14:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2021-11-19 14:40:49,188 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2021-11-19 14:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2021-11-19 14:40:49,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2021-11-19 14:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:40:49,189 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:40:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2021-11-19 14:40:49,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2021-11-19 14:40:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:40:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2021-11-19 14:40:49,189 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2021-11-19 14:40:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2021-11-19 14:40:49,190 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2021-11-19 14:40:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-19 14:40:49,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-19 14:40:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-19 14:40:49,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-19 14:40:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:40:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:40:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2021-11-19 14:40:49,191 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2021-11-19 14:40:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:40:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:40:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:40:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-19 14:40:49,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-19 14:40:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2021-11-19 14:40:49,191 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2021-11-19 14:40:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:40:49,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:40:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 14:40:49,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 14:40:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:40:49,192 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:40:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:40:49,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:40:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2021-11-19 14:40:49,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2021-11-19 14:40:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2021-11-19 14:40:49,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2021-11-19 14:40:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-19 14:40:49,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-19 14:40:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-19 14:40:49,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-19 14:40:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2021-11-19 14:40:49,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2021-11-19 14:40:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 14:40:49,194 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 14:40:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-19 14:40:49,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-19 14:40:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:40:49,195 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:40:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2021-11-19 14:40:49,195 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2021-11-19 14:40:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:40:49,195 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:40:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2021-11-19 14:40:49,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2021-11-19 14:40:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2021-11-19 14:40:49,196 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2021-11-19 14:40:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-19 14:40:49,196 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-19 14:40:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:40:49,196 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:40:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2021-11-19 14:40:49,196 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2021-11-19 14:40:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:40:49,197 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:40:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2021-11-19 14:40:49,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2021-11-19 14:40:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:40:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:40:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:40:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:40:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:40:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:40:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_105 [2021-11-19 14:40:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_105 [2021-11-19 14:40:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_101 [2021-11-19 14:40:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_101 [2021-11-19 14:40:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-19 14:40:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-19 14:40:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2021-11-19 14:40:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2021-11-19 14:40:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2021-11-19 14:40:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2021-11-19 14:40:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2021-11-19 14:40:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2021-11-19 14:40:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-19 14:40:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-19 14:40:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2021-11-19 14:40:49,200 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2021-11-19 14:40:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:40:49,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:40:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:40:49,200 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:40:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 14:40:49,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 14:40:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2021-11-19 14:40:49,201 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2021-11-19 14:40:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-19 14:40:49,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-19 14:40:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 14:40:49,201 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 14:40:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2021-11-19 14:40:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2021-11-19 14:40:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:40:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:40:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-19 14:40:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-19 14:40:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:40:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:40:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_160 [2021-11-19 14:40:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_160 [2021-11-19 14:40:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-19 14:40:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-19 14:40:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-19 14:40:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-19 14:40:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2021-11-19 14:40:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2021-11-19 14:40:50,552 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:40:50,556 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:40:55,084 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:47:41,883 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:47:42,030 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:47:42,058 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:47:42,059 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 14:47:42,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:42 BoogieIcfgContainer [2021-11-19 14:47:42,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:47:42,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:47:42,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:47:42,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:47:42,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:40:39" (1/3) ... [2021-11-19 14:47:42,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b81e552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:47:42, skipping insertion in model container [2021-11-19 14:47:42,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:47" (2/3) ... [2021-11-19 14:47:42,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b81e552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:47:42, skipping insertion in model container [2021-11-19 14:47:42,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:42" (3/3) ... [2021-11-19 14:47:42,078 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-19 14:47:42,092 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:47:42,092 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 14:47:42,154 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:47:42,160 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:47:42,161 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 14:47:42,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 3778 states, 2513 states have (on average 1.294866693195384) internal successors, (3254), 2582 states have internal predecessors, (3254), 1096 states have call successors, (1096), 169 states have call predecessors, (1096), 168 states have return successors, (1091), 1079 states have call predecessors, (1091), 1091 states have call successors, (1091) [2021-11-19 14:47:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-19 14:47:42,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:42,353 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:47:42,354 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:42,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:42,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2050179265, now seen corresponding path program 1 times [2021-11-19 14:47:42,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:47:42,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200898635] [2021-11-19 14:47:42,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:42,383 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:47:42,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:47:42,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:47:42,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:47:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:45,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:47:45,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 14:47:46,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:47,528 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 14:47:47,529 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:47:47,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200898635] [2021-11-19 14:47:47,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200898635] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:47:47,530 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:47:47,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:47:47,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628236204] [2021-11-19 14:47:47,532 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:47:47,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:47:47,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:47:47,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:47:47,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:47:47,577 INFO L87 Difference]: Start difference. First operand has 3778 states, 2513 states have (on average 1.294866693195384) internal successors, (3254), 2582 states have internal predecessors, (3254), 1096 states have call successors, (1096), 169 states have call predecessors, (1096), 168 states have return successors, (1091), 1079 states have call predecessors, (1091), 1091 states have call successors, (1091) Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-19 14:47:50,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:48:10,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:10,128 INFO L93 Difference]: Finished difference Result 12843 states and 18649 transitions. [2021-11-19 14:48:10,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:48:10,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 191 [2021-11-19 14:48:10,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:10,240 INFO L225 Difference]: With dead ends: 12843 [2021-11-19 14:48:10,240 INFO L226 Difference]: Without dead ends: 8984 [2021-11-19 14:48:10,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:48:10,296 INFO L933 BasicCegarLoop]: 7191 mSDtfsCounter, 8541 mSDsluCounter, 9014 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8541 SdHoareTripleChecker+Valid, 16205 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:10,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8541 Valid, 16205 Invalid, 2307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 2261 Invalid, 1 Unknown, 0 Unchecked, 21.6s Time] [2021-11-19 14:48:10,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8984 states. [2021-11-19 14:48:11,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8984 to 8978. [2021-11-19 14:48:11,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8978 states, 6039 states have (on average 1.2882927637025998) internal successors, (7780), 6195 states have internal predecessors, (7780), 2497 states have call successors, (2497), 440 states have call predecessors, (2497), 440 states have return successors, (2497), 2470 states have call predecessors, (2497), 2497 states have call successors, (2497) [2021-11-19 14:48:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8978 states to 8978 states and 12774 transitions. [2021-11-19 14:48:11,164 INFO L78 Accepts]: Start accepts. Automaton has 8978 states and 12774 transitions. Word has length 191 [2021-11-19 14:48:11,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:11,170 INFO L470 AbstractCegarLoop]: Abstraction has 8978 states and 12774 transitions. [2021-11-19 14:48:11,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-19 14:48:11,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8978 states and 12774 transitions. [2021-11-19 14:48:11,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-19 14:48:11,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:11,197 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 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] [2021-11-19 14:48:11,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:11,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:48:11,412 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:11,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash 509006826, now seen corresponding path program 1 times [2021-11-19 14:48:11,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:11,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982878082] [2021-11-19 14:48:11,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:11,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:11,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:11,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:11,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:48:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:15,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 2661 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:48:15,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2021-11-19 14:48:15,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:16,834 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2021-11-19 14:48:16,835 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:48:16,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982878082] [2021-11-19 14:48:16,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982878082] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:16,836 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:16,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:48:16,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420002584] [2021-11-19 14:48:16,837 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:16,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:48:16,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:48:16,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:48:16,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:48:16,844 INFO L87 Difference]: Start difference. First operand 8978 states and 12774 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-19 14:48:19,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:48:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:38,713 INFO L93 Difference]: Finished difference Result 35603 states and 50664 transitions. [2021-11-19 14:48:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:48:38,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 208 [2021-11-19 14:48:38,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:39,021 INFO L225 Difference]: With dead ends: 35603 [2021-11-19 14:48:39,025 INFO L226 Difference]: Without dead ends: 26654 [2021-11-19 14:48:39,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:48:39,089 INFO L933 BasicCegarLoop]: 7436 mSDtfsCounter, 10415 mSDsluCounter, 12845 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10415 SdHoareTripleChecker+Valid, 20281 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:39,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10415 Valid, 20281 Invalid, 2105 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 2090 Invalid, 1 Unknown, 0 Unchecked, 20.5s Time] [2021-11-19 14:48:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26654 states. [2021-11-19 14:48:40,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26654 to 26638. [2021-11-19 14:48:40,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26638 states, 17933 states have (on average 1.2892432944850276) internal successors, (23120), 18403 states have internal predecessors, (23120), 7387 states have call successors, (7387), 1320 states have call predecessors, (7387), 1316 states have return successors, (7397), 7294 states have call predecessors, (7397), 7387 states have call successors, (7397) [2021-11-19 14:48:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26638 states to 26638 states and 37904 transitions. [2021-11-19 14:48:40,798 INFO L78 Accepts]: Start accepts. Automaton has 26638 states and 37904 transitions. Word has length 208 [2021-11-19 14:48:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:40,799 INFO L470 AbstractCegarLoop]: Abstraction has 26638 states and 37904 transitions. [2021-11-19 14:48:40,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-19 14:48:40,801 INFO L276 IsEmpty]: Start isEmpty. Operand 26638 states and 37904 transitions. [2021-11-19 14:48:40,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-19 14:48:40,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:40,811 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 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] [2021-11-19 14:48:40,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:41,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:48:41,026 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:41,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:41,027 INFO L85 PathProgramCache]: Analyzing trace with hash 97707914, now seen corresponding path program 1 times [2021-11-19 14:48:41,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:41,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394970613] [2021-11-19 14:48:41,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:41,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:41,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:41,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:41,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:48:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:44,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2723 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:48:44,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-11-19 14:48:45,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-11-19 14:48:45,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:48:45,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394970613] [2021-11-19 14:48:45,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394970613] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:45,854 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:45,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:48:45,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459328368] [2021-11-19 14:48:45,854 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:45,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:48:45,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:48:45,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:48:45,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:48:45,855 INFO L87 Difference]: Start difference. First operand 26638 states and 37904 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-19 14:48:48,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:48:50,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:50,179 INFO L93 Difference]: Finished difference Result 72210 states and 102586 transitions. [2021-11-19 14:48:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:48:50,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 229 [2021-11-19 14:48:50,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:50,514 INFO L225 Difference]: With dead ends: 72210 [2021-11-19 14:48:50,515 INFO L226 Difference]: Without dead ends: 45601 [2021-11-19 14:48:50,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:48:50,697 INFO L933 BasicCegarLoop]: 6242 mSDtfsCounter, 4569 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 11438 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:50,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4569 Valid, 11438 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 14:48:50,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45601 states. [2021-11-19 14:48:54,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45601 to 45593. [2021-11-19 14:48:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45593 states, 30551 states have (on average 1.2870609800006547) internal successors, (39321), 31335 states have internal predecessors, (39321), 12664 states have call successors, (12664), 2384 states have call predecessors, (12664), 2376 states have return successors, (12687), 12518 states have call predecessors, (12687), 12664 states have call successors, (12687) [2021-11-19 14:48:54,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45593 states to 45593 states and 64672 transitions. [2021-11-19 14:48:54,796 INFO L78 Accepts]: Start accepts. Automaton has 45593 states and 64672 transitions. Word has length 229 [2021-11-19 14:48:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:54,798 INFO L470 AbstractCegarLoop]: Abstraction has 45593 states and 64672 transitions. [2021-11-19 14:48:54,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-19 14:48:54,798 INFO L276 IsEmpty]: Start isEmpty. Operand 45593 states and 64672 transitions. [2021-11-19 14:48:54,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-19 14:48:54,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:54,817 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 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] [2021-11-19 14:48:54,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:55,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:48:55,042 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:55,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:55,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1090038713, now seen corresponding path program 1 times [2021-11-19 14:48:55,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:55,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44038060] [2021-11-19 14:48:55,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:55,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:55,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:55,049 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:55,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:48:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:59,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 2901 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:48:59,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:02,714 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2021-11-19 14:49:02,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:04,274 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2021-11-19 14:49:04,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:04,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44038060] [2021-11-19 14:49:04,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44038060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:04,275 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:04,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:49:04,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989457789] [2021-11-19 14:49:04,275 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:04,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:49:04,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:04,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:49:04,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:04,277 INFO L87 Difference]: Start difference. First operand 45593 states and 64672 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2021-11-19 14:49:11,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:11,053 INFO L93 Difference]: Finished difference Result 91157 states and 129303 transitions. [2021-11-19 14:49:11,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:49:11,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 284 [2021-11-19 14:49:11,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:11,384 INFO L225 Difference]: With dead ends: 91157 [2021-11-19 14:49:11,384 INFO L226 Difference]: Without dead ends: 45593 [2021-11-19 14:49:11,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:11,578 INFO L933 BasicCegarLoop]: 5310 mSDtfsCounter, 8405 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 2116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8405 SdHoareTripleChecker+Valid, 5310 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2116 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:11,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8405 Valid, 5310 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2116 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-19 14:49:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45593 states. [2021-11-19 14:49:14,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45593 to 45593. [2021-11-19 14:49:14,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45593 states, 30551 states have (on average 1.2864718012503682) internal successors, (39303), 31335 states have internal predecessors, (39303), 12664 states have call successors, (12664), 2384 states have call predecessors, (12664), 2376 states have return successors, (12687), 12518 states have call predecessors, (12687), 12664 states have call successors, (12687) [2021-11-19 14:49:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45593 states to 45593 states and 64654 transitions. [2021-11-19 14:49:14,658 INFO L78 Accepts]: Start accepts. Automaton has 45593 states and 64654 transitions. Word has length 284 [2021-11-19 14:49:14,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:14,659 INFO L470 AbstractCegarLoop]: Abstraction has 45593 states and 64654 transitions. [2021-11-19 14:49:14,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2021-11-19 14:49:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 45593 states and 64654 transitions. [2021-11-19 14:49:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-19 14:49:14,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:14,676 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 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] [2021-11-19 14:49:14,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:14,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:14,902 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:14,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:14,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1634911287, now seen corresponding path program 1 times [2021-11-19 14:49:14,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:14,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460918524] [2021-11-19 14:49:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:14,908 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:14,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:14,910 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:14,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:49:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:18,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 2901 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:18,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-11-19 14:49:20,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2021-11-19 14:49:21,437 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:21,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460918524] [2021-11-19 14:49:21,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460918524] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:21,437 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:21,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:49:21,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905353703] [2021-11-19 14:49:21,438 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:21,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:49:21,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:21,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:49:21,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:21,441 INFO L87 Difference]: Start difference. First operand 45593 states and 64654 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-19 14:49:23,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:45,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:45,078 INFO L93 Difference]: Finished difference Result 123032 states and 173880 transitions. [2021-11-19 14:49:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:49:45,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 284 [2021-11-19 14:49:45,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:45,618 INFO L225 Difference]: With dead ends: 123032 [2021-11-19 14:49:45,618 INFO L226 Difference]: Without dead ends: 77468 [2021-11-19 14:49:45,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:45,793 INFO L933 BasicCegarLoop]: 10234 mSDtfsCounter, 8331 mSDsluCounter, 7351 mSDsCounter, 0 mSdLazyCounter, 2174 mSolverCounterSat, 621 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8331 SdHoareTripleChecker+Valid, 17585 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 2174 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:45,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8331 Valid, 17585 Invalid, 2796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [621 Valid, 2174 Invalid, 1 Unknown, 0 Unchecked, 20.6s Time] [2021-11-19 14:49:45,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77468 states. [2021-11-19 14:49:49,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77468 to 77452. [2021-11-19 14:49:49,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77452 states, 52093 states have (on average 1.2878505749332925) internal successors, (67088), 53384 states have internal predecessors, (67088), 21023 states have call successors, (21023), 4346 states have call predecessors, (21023), 4334 states have return successors, (21046), 20802 states have call predecessors, (21046), 21023 states have call successors, (21046) [2021-11-19 14:49:50,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77452 states to 77452 states and 109157 transitions. [2021-11-19 14:49:50,275 INFO L78 Accepts]: Start accepts. Automaton has 77452 states and 109157 transitions. Word has length 284 [2021-11-19 14:49:50,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:50,276 INFO L470 AbstractCegarLoop]: Abstraction has 77452 states and 109157 transitions. [2021-11-19 14:49:50,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-19 14:49:50,277 INFO L276 IsEmpty]: Start isEmpty. Operand 77452 states and 109157 transitions. [2021-11-19 14:49:50,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-11-19 14:49:50,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:50,302 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:49:50,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:50,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:50,526 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:50,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:50,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1440060218, now seen corresponding path program 1 times [2021-11-19 14:49:50,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:50,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410674074] [2021-11-19 14:49:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:50,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:50,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:50,535 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:50,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:49:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:54,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 2917 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:54,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:55,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2021-11-19 14:49:55,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:56,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2021-11-19 14:49:56,965 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:56,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410674074] [2021-11-19 14:49:56,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410674074] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:56,965 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:56,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:49:56,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302957295] [2021-11-19 14:49:56,967 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:56,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:49:56,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:56,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:49:56,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:49:56,970 INFO L87 Difference]: Start difference. First operand 77452 states and 109157 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 4 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:49:59,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:50:20,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:20,655 INFO L93 Difference]: Finished difference Result 175122 states and 246553 transitions. [2021-11-19 14:50:20,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:50:20,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 4 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 354 [2021-11-19 14:50:20,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:21,519 INFO L225 Difference]: With dead ends: 175122 [2021-11-19 14:50:21,522 INFO L226 Difference]: Without dead ends: 97699 [2021-11-19 14:50:21,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:50:21,870 INFO L933 BasicCegarLoop]: 9041 mSDtfsCounter, 8393 mSDsluCounter, 6968 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8393 SdHoareTripleChecker+Valid, 16009 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:21,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8393 Valid, 16009 Invalid, 2229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 2198 Invalid, 1 Unknown, 0 Unchecked, 19.0s Time] [2021-11-19 14:50:22,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97699 states. [2021-11-19 14:50:26,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97699 to 97683. [2021-11-19 14:50:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97683 states, 65969 states have (on average 1.2903030211159787) internal successors, (85120), 67590 states have internal predecessors, (85120), 26107 states have call successors, (26107), 5617 states have call predecessors, (26107), 5605 states have return successors, (26130), 25834 states have call predecessors, (26130), 26107 states have call successors, (26130) [2021-11-19 14:50:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97683 states to 97683 states and 137357 transitions. [2021-11-19 14:50:27,669 INFO L78 Accepts]: Start accepts. Automaton has 97683 states and 137357 transitions. Word has length 354 [2021-11-19 14:50:27,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:27,670 INFO L470 AbstractCegarLoop]: Abstraction has 97683 states and 137357 transitions. [2021-11-19 14:50:27,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 4 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:50:27,671 INFO L276 IsEmpty]: Start isEmpty. Operand 97683 states and 137357 transitions. [2021-11-19 14:50:27,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-11-19 14:50:27,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:27,695 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:27,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:27,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:50:27,910 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:50:27,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:27,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1217150232, now seen corresponding path program 1 times [2021-11-19 14:50:27,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:50:27,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204199551] [2021-11-19 14:50:27,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:27,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:50:27,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:50:27,914 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:50:27,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:50:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:31,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 2922 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:50:31,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2021-11-19 14:50:32,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2021-11-19 14:50:33,509 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:50:33,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204199551] [2021-11-19 14:50:33,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204199551] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:33,510 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:33,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:50:33,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256227462] [2021-11-19 14:50:33,510 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:33,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:50:33,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:50:33,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:50:33,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:50:33,521 INFO L87 Difference]: Start difference. First operand 97683 states and 137357 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 4 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:50:35,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:51:00,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:00,842 INFO L93 Difference]: Finished difference Result 219480 states and 308638 transitions. [2021-11-19 14:51:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:51:00,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 4 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 359 [2021-11-19 14:51:00,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:01,710 INFO L225 Difference]: With dead ends: 219480 [2021-11-19 14:51:01,710 INFO L226 Difference]: Without dead ends: 121826 [2021-11-19 14:51:01,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:51:01,966 INFO L933 BasicCegarLoop]: 10080 mSDtfsCounter, 9893 mSDsluCounter, 5929 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 1095 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9893 SdHoareTripleChecker+Valid, 16009 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1095 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:01,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9893 Valid, 16009 Invalid, 3103 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1095 Valid, 2007 Invalid, 1 Unknown, 0 Unchecked, 21.6s Time] [2021-11-19 14:51:02,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121826 states. [2021-11-19 14:51:09,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121826 to 121810. [2021-11-19 14:51:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121810 states, 82320 states have (on average 1.2899538386783285) internal successors, (106189), 84320 states have internal predecessors, (106189), 32512 states have call successors, (32512), 6988 states have call predecessors, (32512), 6976 states have return successors, (32535), 32181 states have call predecessors, (32535), 32512 states have call successors, (32535) [2021-11-19 14:51:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121810 states to 121810 states and 171236 transitions. [2021-11-19 14:51:10,627 INFO L78 Accepts]: Start accepts. Automaton has 121810 states and 171236 transitions. Word has length 359 [2021-11-19 14:51:10,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:10,628 INFO L470 AbstractCegarLoop]: Abstraction has 121810 states and 171236 transitions. [2021-11-19 14:51:10,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 4 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:51:10,629 INFO L276 IsEmpty]: Start isEmpty. Operand 121810 states and 171236 transitions. [2021-11-19 14:51:10,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-19 14:51:10,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:10,651 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:10,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:10,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:51:10,878 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:51:10,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:10,879 INFO L85 PathProgramCache]: Analyzing trace with hash 152916428, now seen corresponding path program 1 times [2021-11-19 14:51:10,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:51:10,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657922775] [2021-11-19 14:51:10,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:10,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:51:10,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:51:10,884 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:51:10,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db3ab03-9531-4127-99e0-3cd37c6a6af0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:51:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:14,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 3087 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:51:14,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:16,615 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2021-11-19 14:51:16,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2021-11-19 14:51:17,893 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:51:17,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657922775] [2021-11-19 14:51:17,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657922775] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:17,894 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:51:17,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:51:17,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829143829] [2021-11-19 14:51:17,895 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:17,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:51:17,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:51:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:51:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:51:17,898 INFO L87 Difference]: Start difference. First operand 121810 states and 171236 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 4 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) [2021-11-19 14:51:20,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []