./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d88455bf5089be24833f69dfcbd91003e7e136bcd5efcd63ae18e59d7f59e87d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:27:04,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:27:04,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:27:04,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:27:04,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:27:04,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:27:04,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:27:04,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:27:04,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:27:04,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:27:04,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:27:04,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:27:04,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:27:04,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:27:04,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:27:04,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:27:04,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:27:04,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:27:04,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:27:04,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:27:04,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:27:04,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:27:04,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:27:04,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:27:04,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:27:04,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:27:04,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:27:04,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:27:04,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:27:04,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:27:04,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:27:04,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:27:04,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:27:04,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:27:04,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:27:04,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:27:04,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:27:04,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:27:04,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:27:04,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:27:04,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:27:04,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:27:04,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:27:04,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:27:04,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:27:04,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:27:04,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:27:04,692 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:27:04,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:27:04,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:27:04,694 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:27:04,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:27:04,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:27:04,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:27:04,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:27:04,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:27:04,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:27:04,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:27:04,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:27:04,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:27:04,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:27:04,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:27:04,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:27:04,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:27:04,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:27:04,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:27:04,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:27:04,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:27:04,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:27:04,700 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:27:04,701 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:27:04,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:27:04,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88455bf5089be24833f69dfcbd91003e7e136bcd5efcd63ae18e59d7f59e87d [2022-10-17 10:27:05,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:27:05,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:27:05,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:27:05,062 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:27:05,063 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:27:05,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i [2022-10-17 10:27:05,139 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/data/db779a181/a13e3353385544228f76a9c9225e1f6f/FLAG5fa7d7534 [2022-10-17 10:27:06,151 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:27:06,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i [2022-10-17 10:27:06,214 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/data/db779a181/a13e3353385544228f76a9c9225e1f6f/FLAG5fa7d7534 [2022-10-17 10:27:06,473 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/data/db779a181/a13e3353385544228f76a9c9225e1f6f [2022-10-17 10:27:06,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:27:06,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:27:06,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:27:06,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:27:06,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:27:06,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:27:06" (1/1) ... [2022-10-17 10:27:06,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b383a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:06, skipping insertion in model container [2022-10-17 10:27:06,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:27:06" (1/1) ... [2022-10-17 10:27:06,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:27:06,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:27:07,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i[205251,205264] [2022-10-17 10:27:08,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:27:08,882 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:27:09,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i[205251,205264] [2022-10-17 10:27:09,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:27:09,521 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:27:09,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09 WrapperNode [2022-10-17 10:27:09,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:27:09,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:27:09,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:27:09,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:27:09,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:09,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:09,891 INFO L138 Inliner]: procedures = 239, calls = 2983, calls flagged for inlining = 111, calls inlined = 96, statements flattened = 5266 [2022-10-17 10:27:09,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:27:09,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:27:09,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:27:09,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:27:09,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:09,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:09,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:09,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:10,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:10,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:10,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:10,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:10,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:27:10,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:27:10,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:27:10,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:27:10,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (1/1) ... [2022-10-17 10:27:10,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:27:10,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:10,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:10,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1138148a-2fa3-4046-ba94-c2d096e2a3e3/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:27:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure at76_hw_scan [2022-10-17 10:27:10,410 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_hw_scan [2022-10-17 10:27:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure at76_dfu_get_status [2022-10-17 10:27:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_dfu_get_status [2022-10-17 10:27:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure at76_join [2022-10-17 10:27:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_join [2022-10-17 10:27:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-17 10:27:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-17 10:27:10,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:27:10,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:27:10,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:27:10,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:27:10,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-10-17 10:27:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-10-17 10:27:10,413 INFO L130 BoogieDeclarations]: Found specification of procedure at76_submit_rx_urb [2022-10-17 10:27:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_submit_rx_urb [2022-10-17 10:27:10,413 INFO L130 BoogieDeclarations]: Found specification of procedure at76_add_interface [2022-10-17 10:27:10,413 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_add_interface [2022-10-17 10:27:10,414 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_timeout [2022-10-17 10:27:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_timeout [2022-10-17 10:27:10,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:27:10,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:27:10,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-10-17 10:27:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-10-17 10:27:10,415 INFO L130 BoogieDeclarations]: Found specification of procedure at76_bss_info_changed [2022-10-17 10:27:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_bss_info_changed [2022-10-17 10:27:10,415 INFO L130 BoogieDeclarations]: Found specification of procedure at76_wait_completion [2022-10-17 10:27:10,415 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_wait_completion [2022-10-17 10:27:10,415 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:27:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:27:10,416 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-17 10:27:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-17 10:27:10,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:27:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:27:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:27:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:27:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:27:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:27:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:27:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 10:27:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 10:27:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:27:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-17 10:27:10,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-17 10:27:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure at76_delete_device [2022-10-17 10:27:10,419 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_delete_device [2022-10-17 10:27:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-10-17 10:27:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_mib [2022-10-17 10:27:10,420 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_mib [2022-10-17 10:27:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_radio [2022-10-17 10:27:10,420 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_radio [2022-10-17 10:27:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:27:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:27:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_event [2022-10-17 10:27:10,421 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_event [2022-10-17 10:27:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_card_command [2022-10-17 10:27:10,422 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_card_command [2022-10-17 10:27:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_cmd_status [2022-10-17 10:27:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_cmd_status [2022-10-17 10:27:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-10-17 10:27:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-10-17 10:27:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-17 10:27:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-17 10:27:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:27:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:27:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2022-10-17 10:27:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2022-10-17 10:27:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 10:27:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 10:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-17 10:27:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-17 10:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-10-17 10:27:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-10-17 10:27:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_mib [2022-10-17 10:27:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_mib [2022-10-17 10:27:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-17 10:27:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-17 10:27:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:27:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:27:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:27:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:27:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_pm_mode [2022-10-17 10:27:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_pm_mode [2022-10-17 10:27:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure at76_set_key [2022-10-17 10:27:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_set_key [2022-10-17 10:27:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure at76_is_505a [2022-10-17 10:27:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_is_505a [2022-10-17 10:27:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:27:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_hw_cfg [2022-10-17 10:27:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_hw_cfg [2022-10-17 10:27:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure at76_config [2022-10-17 10:27:10,432 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_config [2022-10-17 10:27:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-17 10:27:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-17 10:27:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:27:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:27:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-17 10:27:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-17 10:27:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 10:27:10,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 10:27:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-10-17 10:27:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-10-17 10:27:10,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 10:27:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 10:27:10,437 INFO L130 BoogieDeclarations]: Found specification of procedure at76_get_op_mode [2022-10-17 10:27:10,437 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_get_op_mode [2022-10-17 10:27:10,437 INFO L130 BoogieDeclarations]: Found specification of procedure at76_remove_interface [2022-10-17 10:27:10,437 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_remove_interface [2022-10-17 10:27:10,437 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-10-17 10:27:10,437 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-10-17 10:27:10,438 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:27:10,438 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:27:10,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:27:10,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:27:10,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:27:10,439 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_name [2022-10-17 10:27:10,439 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_name [2022-10-17 10:27:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-10-17 10:27:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-10-17 10:27:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:27:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure at76_start_monitor [2022-10-17 10:27:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_start_monitor [2022-10-17 10:27:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2022-10-17 10:27:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2022-10-17 10:27:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-10-17 10:27:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-10-17 10:27:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:27:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-10-17 10:27:10,454 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-10-17 10:27:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:27:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-17 10:27:10,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-17 10:27:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-17 10:27:10,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-17 10:27:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-17 10:27:10,455 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-17 10:27:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-10-17 10:27:10,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-10-17 10:27:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure at76_configure_filter [2022-10-17 10:27:10,456 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_configure_filter [2022-10-17 10:27:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 10:27:10,456 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 10:27:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_work [2022-10-17 10:27:10,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_work [2022-10-17 10:27:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-10-17 10:27:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-10-17 10:27:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:27:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure at76_mac80211_tx [2022-10-17 10:27:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure at76_mac80211_tx [2022-10-17 10:27:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:27:10,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:27:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-10-17 10:27:10,458 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-10-17 10:27:11,363 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:27:11,367 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:27:11,958 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:27:23,502 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:27:23,531 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:27:23,531 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 10:27:23,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:27:23 BoogieIcfgContainer [2022-10-17 10:27:23,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:27:23,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:27:23,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:27:23,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:27:23,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:27:06" (1/3) ... [2022-10-17 10:27:23,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9ef5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:27:23, skipping insertion in model container [2022-10-17 10:27:23,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:09" (2/3) ... [2022-10-17 10:27:23,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9ef5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:27:23, skipping insertion in model container [2022-10-17 10:27:23,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:27:23" (3/3) ... [2022-10-17 10:27:23,549 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--at76c50x-usb.ko-entry_point.cil.out.i [2022-10-17 10:27:23,571 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:27:23,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:27:23,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:27:23,711 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@70151f71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:27:23,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:27:23,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 1344 states, 979 states have (on average 1.390194075587334) internal successors, (1361), 1003 states have internal predecessors, (1361), 296 states have call successors, (296), 68 states have call predecessors, (296), 67 states have return successors, (291), 290 states have call predecessors, (291), 291 states have call successors, (291) [2022-10-17 10:27:23,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-17 10:27:23,742 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:27:23,743 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-10-17 10:27:23,743 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:27:23,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:23,750 INFO L85 PathProgramCache]: Analyzing trace with hash -576681096, now seen corresponding path program 1 times [2022-10-17 10:27:23,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:23,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451205407] [2022-10-17 10:27:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:24,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:27:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:24,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:27:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:27:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:25,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:27:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:25,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:27:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:25,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:27:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:25,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:27:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:25,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:27:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:25,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:27:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:25,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:27:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-17 10:27:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:27:25,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451205407] [2022-10-17 10:27:25,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451205407] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:27:25,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:27:25,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:27:25,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148215174] [2022-10-17 10:27:25,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:27:25,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:27:25,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:27:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:27:25,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:27:25,205 INFO L87 Difference]: Start difference. First operand has 1344 states, 979 states have (on average 1.390194075587334) internal successors, (1361), 1003 states have internal predecessors, (1361), 296 states have call successors, (296), 68 states have call predecessors, (296), 67 states have return successors, (291), 290 states have call predecessors, (291), 291 states have call successors, (291) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-17 10:27:29,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []