./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-wireless-orinoco-orinoco_usb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:55,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:55,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:55,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:55,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:55,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:55,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:55,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:55,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:55,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:55,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:55,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:55,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:55,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:55,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:55,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:55,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:55,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:55,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:55,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:55,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:55,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:55,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:55,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:55,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:55,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:55,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:55,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:55,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:55,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:55,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:55,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:55,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:55,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:55,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:55,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:55,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:55,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:55,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:55,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:55,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:55,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:53:55,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:55,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:55,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:55,473 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:55,473 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:55,473 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:55,474 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:53:55,474 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:55,474 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:55,475 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:53:55,475 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:53:55,475 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:55,476 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:53:55,476 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:53:55,476 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:53:55,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:55,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:53:55,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:55,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:55,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:55,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:55,479 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:55,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:55,480 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:55,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:55,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:55,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:55,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:55,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:55,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:55,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:55,483 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:53:55,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:53:55,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:55,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:55,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:55,484 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_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2021-11-07 00:53:55,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:55,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:55,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:55,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:55,874 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:55,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-07 00:53:55,955 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data/7c6eda77f/84b55f1fd12c4576b5f166931f171260/FLAGeb6601633 [2021-11-07 00:53:57,155 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:57,159 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-07 00:53:57,241 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data/7c6eda77f/84b55f1fd12c4576b5f166931f171260/FLAGeb6601633 [2021-11-07 00:53:57,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data/7c6eda77f/84b55f1fd12c4576b5f166931f171260 [2021-11-07 00:53:57,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:57,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:57,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:57,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:57,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:57,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:57" (1/1) ... [2021-11-07 00:53:57,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e20d800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:57, skipping insertion in model container [2021-11-07 00:53:57,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:57" (1/1) ... [2021-11-07 00:53:57,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:57,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:59,673 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,676 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,776 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,777 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,814 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,827 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,885 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,915 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,923 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,931 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,941 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,949 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,950 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,959 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,968 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,975 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:53:59,982 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,001 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,005 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,023 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,031 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,039 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,039 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,089 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,111 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,477 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,479 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,481 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,482 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,483 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,501 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,501 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,502 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,505 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,511 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,538 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:00,548 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:01,260 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-07 00:54:01,264 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-07 00:54:01,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:01,359 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:54:01,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d7e99aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:01, skipping insertion in model container [2021-11-07 00:54:01,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:01,362 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:54:01,364 INFO L168 Benchmark]: Toolchain (without parser) took 3915.37 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 68.9 MB in the beginning and 82.9 MB in the end (delta: -14.0 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. [2021-11-07 00:54:01,365 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 102.8 MB. Free memory is still 78.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:54:01,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3912.74 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 68.7 MB in the beginning and 82.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. [2021-11-07 00:54:01,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 102.8 MB. Free memory is still 78.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3912.74 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 68.7 MB in the beginning and 82.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6699]: 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_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:54:04,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:54:04,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:54:04,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:54:04,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:54:04,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:54:04,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:54:04,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:54:04,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:54:04,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:54:04,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:54:04,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:54:04,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:54:04,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:54:04,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:54:04,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:54:04,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:54:04,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:54:04,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:54:04,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:54:04,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:54:04,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:54:04,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:54:04,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:54:04,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:54:04,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:54:04,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:54:04,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:54:04,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:54:04,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:54:04,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:54:04,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:54:04,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:54:04,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:54:04,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:54:04,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:54:04,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:54:04,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:54:04,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:54:04,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:54:04,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:54:04,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:54:04,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:54:04,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:54:04,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:54:04,356 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:54:04,356 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:54:04,357 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:54:04,357 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:54:04,357 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:54:04,358 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:54:04,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:54:04,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:54:04,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:54:04,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:54:04,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:54:04,362 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:54:04,362 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:54:04,362 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:54:04,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:54:04,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:54:04,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:54:04,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:54:04,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:54:04,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:54:04,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:04,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:54:04,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:54:04,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:54:04,366 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:54:04,366 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:54:04,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:54:04,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:54:04,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:54:04,367 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_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2021-11-07 00:54:04,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:54:04,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:54:04,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:54:04,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:54:04,889 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:54:04,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-07 00:54:04,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data/51d1fb9ea/423d3d187cc1419488665e31820a67db/FLAG29d533797 [2021-11-07 00:54:06,363 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:54:06,365 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-07 00:54:06,422 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data/51d1fb9ea/423d3d187cc1419488665e31820a67db/FLAG29d533797 [2021-11-07 00:54:06,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/data/51d1fb9ea/423d3d187cc1419488665e31820a67db [2021-11-07 00:54:06,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:54:06,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:54:06,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:06,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:54:06,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:54:06,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:06" (1/1) ... [2021-11-07 00:54:06,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29037fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:06, skipping insertion in model container [2021-11-07 00:54:06,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:06" (1/1) ... [2021-11-07 00:54:06,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:54:06,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:10,201 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-07 00:54:10,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-07 00:54:10,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:10,270 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:54:10,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:10,747 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-07 00:54:10,748 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-07 00:54:10,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:10,780 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:54:11,163 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-07 00:54:11,163 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-07 00:54:11,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:11,496 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:54:11,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11 WrapperNode [2021-11-07 00:54:11,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:11,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:11,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:54:11,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:54:11,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:11,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:12,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:12,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:54:12,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:54:12,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:54:12,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:12,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:13,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:13,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:13,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:13,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:13,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:13,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:54:13,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:54:13,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:54:13,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:54:13,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (1/1) ... [2021-11-07 00:54:14,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:14,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:14,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:54:14,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:54:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:54:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 00:54:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:54:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:54:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:54:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:54:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:54:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 00:54:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 00:54:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 00:54:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 00:54:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 00:54:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:54:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:54:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:54:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:54:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:54:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 00:54:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 00:54:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 00:54:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:54:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:54:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:54:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:54:14,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:54:14,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:54:14,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:54:14,100 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_req_queue_run [2021-11-07 00:54:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_req_queue_run [2021-11-07 00:54:14,100 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_ctx_complete [2021-11-07 00:54:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_ctx_complete [2021-11-07 00:54:14,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 00:54:14,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 00:54:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 00:54:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 00:59:42,543 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 00:59:42,544 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 00:59:42,546 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-07 00:59:42,547 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 00:59:42,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:59:42,637 INFO L299 CfgBuilder]: Removed 6676 assume(true) statements. [2021-11-07 00:59:42,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:42 BoogieIcfgContainer [2021-11-07 00:59:42,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:59:42,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:59:42,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:59:42,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:59:42,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:06" (1/3) ... [2021-11-07 00:59:42,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703a7cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:42, skipping insertion in model container [2021-11-07 00:59:42,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:11" (2/3) ... [2021-11-07 00:59:42,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703a7cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:42, skipping insertion in model container [2021-11-07 00:59:42,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:42" (3/3) ... [2021-11-07 00:59:42,658 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-07 00:59:42,664 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:59:42,665 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2021-11-07 00:59:42,748 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:59:42,754 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 00:59:42,754 INFO L340 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2021-11-07 00:59:42,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 7550 states, 7438 states have (on average 1.4598010217800483) internal successors, (10858), 7542 states have internal predecessors, (10858), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-07 00:59:42,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 00:59:42,908 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:42,908 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:59:42,909 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 00:59:42,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash -756030138, now seen corresponding path program 1 times [2021-11-07 00:59:42,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:42,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647532859] [2021-11-07 00:59:42,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:42,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:42,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:42,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:42,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:59:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:47,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:47,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:47,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:47,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:48,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:48,132 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:48,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647532859] [2021-11-07 00:59:48,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647532859] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:48,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:48,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:59:48,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565092946] [2021-11-07 00:59:48,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:59:48,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:48,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:59:48,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:48,182 INFO L87 Difference]: Start difference. First operand has 7550 states, 7438 states have (on average 1.4598010217800483) internal successors, (10858), 7542 states have internal predecessors, (10858), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:51,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:51,626 INFO L93 Difference]: Finished difference Result 19205 states and 27817 transitions. [2021-11-07 00:59:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:59:51,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-07 00:59:51,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:51,758 INFO L225 Difference]: With dead ends: 19205 [2021-11-07 00:59:51,758 INFO L226 Difference]: Without dead ends: 11109 [2021-11-07 00:59:51,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2021-11-07 00:59:52,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 11013. [2021-11-07 00:59:52,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11013 states, 10879 states have (on average 1.3788031988234213) internal successors, (15000), 10998 states have internal predecessors, (15000), 51 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-07 00:59:52,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11013 states to 11013 states and 15102 transitions. [2021-11-07 00:59:52,475 INFO L78 Accepts]: Start accepts. Automaton has 11013 states and 15102 transitions. Word has length 71 [2021-11-07 00:59:52,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:52,477 INFO L470 AbstractCegarLoop]: Abstraction has 11013 states and 15102 transitions. [2021-11-07 00:59:52,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:52,483 INFO L276 IsEmpty]: Start isEmpty. Operand 11013 states and 15102 transitions. [2021-11-07 00:59:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 00:59:52,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:52,495 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:59:52,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:52,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:52,709 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 00:59:52,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:52,710 INFO L85 PathProgramCache]: Analyzing trace with hash 325300629, now seen corresponding path program 1 times [2021-11-07 00:59:52,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:52,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507312775] [2021-11-07 00:59:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:52,722 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:52,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:52,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:52,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:59:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:57,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1923 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:57,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:58,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:58,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:58,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:58,538 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:58,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507312775] [2021-11-07 00:59:58,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507312775] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:58,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:58,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:58,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517659762] [2021-11-07 00:59:58,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:59:58,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:58,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:59:58,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:59:58,549 INFO L87 Difference]: Start difference. First operand 11013 states and 15102 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:03,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:03,120 INFO L93 Difference]: Finished difference Result 30154 states and 41293 transitions. [2021-11-07 01:00:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:00:03,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-07 01:00:03,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:03,263 INFO L225 Difference]: With dead ends: 30154 [2021-11-07 01:00:03,263 INFO L226 Difference]: Without dead ends: 19265 [2021-11-07 01:00:03,293 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:00:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19265 states. [2021-11-07 01:00:04,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19265 to 19089. [2021-11-07 01:00:04,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19089 states, 18913 states have (on average 1.376513509226458) internal successors, (26034), 19058 states have internal predecessors, (26034), 85 states have call successors, (85), 12 states have call predecessors, (85), 12 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2021-11-07 01:00:04,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19089 states to 19089 states and 26204 transitions. [2021-11-07 01:00:04,174 INFO L78 Accepts]: Start accepts. Automaton has 19089 states and 26204 transitions. Word has length 74 [2021-11-07 01:00:04,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:04,176 INFO L470 AbstractCegarLoop]: Abstraction has 19089 states and 26204 transitions. [2021-11-07 01:00:04,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 19089 states and 26204 transitions. [2021-11-07 01:00:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 01:00:04,179 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:04,180 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:00:04,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:04,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:04,409 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 01:00:04,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:04,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1282968837, now seen corresponding path program 1 times [2021-11-07 01:00:04,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:04,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010581498] [2021-11-07 01:00:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:04,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:04,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:04,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:04,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:00:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:08,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1958 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:00:08,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:09,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:09,479 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:09,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010581498] [2021-11-07 01:00:09,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010581498] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:09,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:09,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:00:09,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062421474] [2021-11-07 01:00:09,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:00:09,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:09,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:00:09,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:00:09,481 INFO L87 Difference]: Start difference. First operand 19089 states and 26204 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:13,845 INFO L93 Difference]: Finished difference Result 62056 states and 85222 transitions. [2021-11-07 01:00:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:00:13,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 01:00:13,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:14,003 INFO L225 Difference]: With dead ends: 62056 [2021-11-07 01:00:14,004 INFO L226 Difference]: Without dead ends: 43091 [2021-11-07 01:00:14,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:00:14,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43091 states. [2021-11-07 01:00:15,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43091 to 42843. [2021-11-07 01:00:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42843 states, 42538 states have (on average 1.3779914429451314) internal successors, (58617), 42767 states have internal predecessors, (58617), 196 states have call successors, (196), 30 states have call predecessors, (196), 30 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2021-11-07 01:00:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42843 states to 42843 states and 59009 transitions. [2021-11-07 01:00:15,901 INFO L78 Accepts]: Start accepts. Automaton has 42843 states and 59009 transitions. Word has length 85 [2021-11-07 01:00:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:15,903 INFO L470 AbstractCegarLoop]: Abstraction has 42843 states and 59009 transitions. [2021-11-07 01:00:15,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:15,904 INFO L276 IsEmpty]: Start isEmpty. Operand 42843 states and 59009 transitions. [2021-11-07 01:00:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 01:00:15,908 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:15,908 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:00:15,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:16,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:16,133 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 01:00:16,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:16,133 INFO L85 PathProgramCache]: Analyzing trace with hash 680379043, now seen corresponding path program 1 times [2021-11-07 01:00:16,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:16,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596505886] [2021-11-07 01:00:16,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:16,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:16,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:16,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:16,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:00:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:20,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1951 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:00:20,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:20,962 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:20,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:21,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:21,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596505886] [2021-11-07 01:00:21,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596505886] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:21,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:21,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:00:21,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039805724] [2021-11-07 01:00:21,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:00:21,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:21,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:00:21,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:00:21,442 INFO L87 Difference]: Start difference. First operand 42843 states and 59009 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:27,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:27,598 INFO L93 Difference]: Finished difference Result 155904 states and 214981 transitions. [2021-11-07 01:00:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:00:27,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-11-07 01:00:27,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:28,287 INFO L225 Difference]: With dead ends: 155904 [2021-11-07 01:00:28,287 INFO L226 Difference]: Without dead ends: 113185 [2021-11-07 01:00:28,407 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:00:28,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113185 states. [2021-11-07 01:00:32,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113185 to 112821. [2021-11-07 01:00:33,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112821 states, 112155 states have (on average 1.3804823681512193) internal successors, (154828), 112636 states have internal predecessors, (154828), 513 states have call successors, (513), 74 states have call predecessors, (513), 74 states have return successors, (513), 513 states have call predecessors, (513), 513 states have call successors, (513) [2021-11-07 01:00:33,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112821 states to 112821 states and 155854 transitions. [2021-11-07 01:00:33,770 INFO L78 Accepts]: Start accepts. Automaton has 112821 states and 155854 transitions. Word has length 91 [2021-11-07 01:00:33,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:33,778 INFO L470 AbstractCegarLoop]: Abstraction has 112821 states and 155854 transitions. [2021-11-07 01:00:33,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 112821 states and 155854 transitions. [2021-11-07 01:00:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-07 01:00:33,789 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:33,789 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:33,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:34,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:34,013 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 01:00:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:34,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1607912092, now seen corresponding path program 1 times [2021-11-07 01:00:34,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:34,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296414532] [2021-11-07 01:00:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:34,023 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:34,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:34,025 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:34,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:00:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:38,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 2114 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:00:38,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:39,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:39,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:39,592 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:39,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296414532] [2021-11-07 01:00:39,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296414532] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:39,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:39,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:00:39,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177242068] [2021-11-07 01:00:39,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:00:39,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:39,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:00:39,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:00:39,597 INFO L87 Difference]: Start difference. First operand 112821 states and 155854 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:48,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:48,225 INFO L93 Difference]: Finished difference Result 321731 states and 445226 transitions. [2021-11-07 01:00:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:00:48,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-07 01:00:48,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:49,016 INFO L225 Difference]: With dead ends: 321731 [2021-11-07 01:00:49,017 INFO L226 Difference]: Without dead ends: 209034 [2021-11-07 01:00:49,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:00:49,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209034 states. [2021-11-07 01:00:57,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209034 to 208774. [2021-11-07 01:00:57,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208774 states, 207591 states have (on average 1.3834800159929863) internal successors, (287198), 208437 states have internal predecessors, (287198), 972 states have call successors, (972), 132 states have call predecessors, (972), 132 states have return successors, (972), 972 states have call predecessors, (972), 972 states have call successors, (972) [2021-11-07 01:00:58,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208774 states to 208774 states and 289142 transitions. [2021-11-07 01:00:58,650 INFO L78 Accepts]: Start accepts. Automaton has 208774 states and 289142 transitions. Word has length 106 [2021-11-07 01:00:58,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:58,652 INFO L470 AbstractCegarLoop]: Abstraction has 208774 states and 289142 transitions. [2021-11-07 01:00:58,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:58,653 INFO L276 IsEmpty]: Start isEmpty. Operand 208774 states and 289142 transitions. [2021-11-07 01:00:58,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 01:00:58,669 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:58,669 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-07 01:00:58,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:58,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:58,884 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 01:00:58,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:58,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2091861401, now seen corresponding path program 1 times [2021-11-07 01:00:58,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:58,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554876870] [2021-11-07 01:00:58,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:58,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:58,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:58,893 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:58,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f49c4b-f500-4823-8644-67499a8fe13e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:01:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:01:03,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 2057 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:01:03,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:01:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:01:03,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:01:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:01:04,383 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:01:04,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554876870] [2021-11-07 01:01:04,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554876870] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:01:04,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:01:04,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:01:04,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306752585] [2021-11-07 01:01:04,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:01:04,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:01:04,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:01:04,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:01:04,385 INFO L87 Difference]: Start difference. First operand 208774 states and 289142 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)