./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--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/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--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa --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 03d55f274509719e259063891bf7f51d6ae3645569d8243a0d7434c1b24ad753 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:37:55,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:37:55,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:37:55,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:37:55,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:37:55,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:37:55,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:37:55,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:37:55,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:37:55,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:37:55,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:37:55,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:37:55,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:37:55,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:37:55,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:37:55,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:37:55,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:37:55,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:37:55,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:37:55,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:37:55,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:37:55,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:37:55,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:37:55,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:37:55,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:37:55,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:37:55,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:37:55,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:37:55,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:37:55,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:37:55,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:37:55,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:37:55,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:37:55,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:37:55,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:37:55,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:37:55,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:37:55,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:37:55,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:37:55,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:37:55,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:37:55,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 18:37:55,321 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:37:55,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:37:55,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:37:55,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:37:55,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:37:55,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:37:55,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:37:55,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:37:55,330 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:37:55,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:37:55,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:37:55,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:37:55,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:37:55,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:37:55,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:37:55,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:37:55,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:37:55,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:37:55,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:37:55,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:37:55,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:37:55,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:37:55,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:37:55,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:37:55,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:37:55,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:37:55,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:37:55,333 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:37:55,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:37:55,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:37:55,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:37:55,333 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_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d55f274509719e259063891bf7f51d6ae3645569d8243a0d7434c1b24ad753 [2021-12-06 18:37:55,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:37:55,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:37:55,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:37:55,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:37:55,533 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:37:55,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2021-12-06 18:37:55,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data/108ba6f67/4949e8f7343f40f8b7c0b2e769e5b09a/FLAG64696b374 [2021-12-06 18:37:56,176 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:37:56,177 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2021-12-06 18:37:56,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data/108ba6f67/4949e8f7343f40f8b7c0b2e769e5b09a/FLAG64696b374 [2021-12-06 18:37:56,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data/108ba6f67/4949e8f7343f40f8b7c0b2e769e5b09a [2021-12-06 18:37:56,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:37:56,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:37:56,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:37:56,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:37:56,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:37:56,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:37:56" (1/1) ... [2021-12-06 18:37:56,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b556f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:56, skipping insertion in model container [2021-12-06 18:37:56,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:37:56" (1/1) ... [2021-12-06 18:37:56,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:37:56,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:37:57,404 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_618477c2-c425-4fec-a90e-833c3f8b90da/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2021-12-06 18:37:57,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:37:57,872 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:37:58,002 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_618477c2-c425-4fec-a90e-833c3f8b90da/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2021-12-06 18:37:58,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:37:58,163 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:37:58,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58 WrapperNode [2021-12-06 18:37:58,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:37:58,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:37:58,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:37:58,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:37:58,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,300 INFO L137 Inliner]: procedures = 157, calls = 1181, calls flagged for inlining = 63, calls inlined = 51, statements flattened = 2337 [2021-12-06 18:37:58,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:37:58,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:37:58,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:37:58,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:37:58,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:37:58,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:37:58,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:37:58,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:37:58,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (1/1) ... [2021-12-06 18:37:58,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:37:58,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:37:58,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:37:58,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:37:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-06 18:37:58,485 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-06 18:37:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2021-12-06 18:37:58,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2021-12-06 18:37:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 18:37:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-06 18:37:58,486 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-06 18:37:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-06 18:37:58,486 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-06 18:37:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-06 18:37:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-06 18:37:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 18:37:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 18:37:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-06 18:37:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-06 18:37:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 18:37:58,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 18:37:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:37:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-06 18:37:58,488 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-06 18:37:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-06 18:37:58,488 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-06 18:37:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2021-12-06 18:37:58,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2021-12-06 18:37:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 18:37:58,489 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 18:37:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 18:37:58,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 18:37:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 18:37:58,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 18:37:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-06 18:37:58,489 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-06 18:37:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2021-12-06 18:37:58,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2021-12-06 18:37:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2021-12-06 18:37:58,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2021-12-06 18:37:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-06 18:37:58,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-06 18:37:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 18:37:58,491 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 18:37:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:37:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-06 18:37:58,491 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-06 18:37:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 18:37:58,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 18:37:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-06 18:37:58,491 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-06 18:37:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 18:37:58,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 18:37:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 18:37:58,492 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 18:37:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 18:37:58,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 18:37:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 18:37:58,493 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 18:37:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 18:37:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-06 18:37:58,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-06 18:37:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:37:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-06 18:37:58,493 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-06 18:37:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:37:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 18:37:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2021-12-06 18:37:58,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2021-12-06 18:37:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 18:37:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-06 18:37:58,494 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-06 18:37:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2021-12-06 18:37:58,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2021-12-06 18:37:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-06 18:37:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-06 18:37:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:37:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 18:37:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 18:37:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 18:37:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-06 18:37:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-06 18:37:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:37:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2021-12-06 18:37:58,496 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2021-12-06 18:37:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-06 18:37:58,496 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-06 18:37:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-06 18:37:58,496 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-06 18:37:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 18:37:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-12-06 18:37:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 18:37:58,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 18:37:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:37:58,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:37:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-06 18:37:58,497 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-06 18:37:58,802 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:37:58,804 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:37:58,889 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 18:38:02,427 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:38:02,442 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:38:02,442 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 18:38:02,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:38:02 BoogieIcfgContainer [2021-12-06 18:38:02,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:38:02,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:38:02,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:38:02,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:38:02,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:37:56" (1/3) ... [2021-12-06 18:38:02,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703bd8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:38:02, skipping insertion in model container [2021-12-06 18:38:02,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:58" (2/3) ... [2021-12-06 18:38:02,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703bd8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:38:02, skipping insertion in model container [2021-12-06 18:38:02,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:38:02" (3/3) ... [2021-12-06 18:38:02,451 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2021-12-06 18:38:02,455 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:38:02,455 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:38:02,496 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:38:02,500 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=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:38:02,501 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:38:02,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 678 states, 502 states have (on average 1.3764940239043826) internal successors, (691), 515 states have internal predecessors, (691), 137 states have call successors, (137), 38 states have call predecessors, (137), 37 states have return successors, (133), 130 states have call predecessors, (133), 133 states have call successors, (133) [2021-12-06 18:38:02,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 18:38:02,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:38:02,538 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:02,538 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:38:02,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:02,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1998328016, now seen corresponding path program 1 times [2021-12-06 18:38:02,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:02,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32524357] [2021-12-06 18:38:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:02,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:02,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:38:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:38:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:02,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:38:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:02,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:38:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 18:38:03,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:03,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32524357] [2021-12-06 18:38:03,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32524357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:03,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:03,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:38:03,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784022977] [2021-12-06 18:38:03,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:03,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:38:03,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:38:03,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:38:03,038 INFO L87 Difference]: Start difference. First operand has 678 states, 502 states have (on average 1.3764940239043826) internal successors, (691), 515 states have internal predecessors, (691), 137 states have call successors, (137), 38 states have call predecessors, (137), 37 states have return successors, (133), 130 states have call predecessors, (133), 133 states have call successors, (133) Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 18:38:05,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:07,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:38:09,397 INFO L93 Difference]: Finished difference Result 2121 states and 3115 transitions. [2021-12-06 18:38:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:38:09,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2021-12-06 18:38:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:38:09,419 INFO L225 Difference]: With dead ends: 2121 [2021-12-06 18:38:09,419 INFO L226 Difference]: Without dead ends: 1432 [2021-12-06 18:38:09,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:38:09,430 INFO L933 BasicCegarLoop]: 1043 mSDtfsCounter, 1384 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 687 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:38:09,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1494 Valid, 2819 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 961 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2021-12-06 18:38:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2021-12-06 18:38:09,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1286. [2021-12-06 18:38:09,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 957 states have (on average 1.3657262277951934) internal successors, (1307), 971 states have internal predecessors, (1307), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (255), 249 states have call predecessors, (255), 255 states have call successors, (255) [2021-12-06 18:38:09,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1818 transitions. [2021-12-06 18:38:09,562 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1818 transitions. Word has length 45 [2021-12-06 18:38:09,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:38:09,562 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 1818 transitions. [2021-12-06 18:38:09,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 18:38:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1818 transitions. [2021-12-06 18:38:09,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-06 18:38:09,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:38:09,568 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:09,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:38:09,569 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:38:09,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:09,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1828543170, now seen corresponding path program 1 times [2021-12-06 18:38:09,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:09,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242408842] [2021-12-06 18:38:09,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:09,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:09,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:38:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:09,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:38:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:09,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:38:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:38:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:09,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 18:38:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:09,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 18:38:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 18:38:09,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:09,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242408842] [2021-12-06 18:38:09,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242408842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:09,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:09,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:38:09,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310402404] [2021-12-06 18:38:09,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:09,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:38:09,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:09,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:38:09,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:38:09,868 INFO L87 Difference]: Start difference. First operand 1286 states and 1818 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:38:12,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:14,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:16,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:38:16,404 INFO L93 Difference]: Finished difference Result 4123 states and 5934 transitions. [2021-12-06 18:38:16,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:38:16,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2021-12-06 18:38:16,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:38:16,422 INFO L225 Difference]: With dead ends: 4123 [2021-12-06 18:38:16,422 INFO L226 Difference]: Without dead ends: 2839 [2021-12-06 18:38:16,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:38:16,428 INFO L933 BasicCegarLoop]: 1095 mSDtfsCounter, 1367 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 660 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 4985 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:38:16,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1474 Valid, 4985 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 1326 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-12-06 18:38:16,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2021-12-06 18:38:16,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2591. [2021-12-06 18:38:16,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2591 states, 1927 states have (on average 1.3642968344577062) internal successors, (2629), 1963 states have internal predecessors, (2629), 507 states have call successors, (507), 145 states have call predecessors, (507), 156 states have return successors, (561), 498 states have call predecessors, (561), 506 states have call successors, (561) [2021-12-06 18:38:16,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3697 transitions. [2021-12-06 18:38:16,553 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3697 transitions. Word has length 63 [2021-12-06 18:38:16,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:38:16,554 INFO L470 AbstractCegarLoop]: Abstraction has 2591 states and 3697 transitions. [2021-12-06 18:38:16,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:38:16,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3697 transitions. [2021-12-06 18:38:16,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 18:38:16,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:38:16,564 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-06 18:38:16,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:38:16,564 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:38:16,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:16,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1080085425, now seen corresponding path program 1 times [2021-12-06 18:38:16,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:16,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601494589] [2021-12-06 18:38:16,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:16,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:38:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:38:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:38:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:38:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 18:38:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 18:38:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 18:38:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 18:38:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,807 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-06 18:38:16,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:16,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601494589] [2021-12-06 18:38:16,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601494589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:16,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:16,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:38:16,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303018293] [2021-12-06 18:38:16,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:16,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:38:16,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:16,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:38:16,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:38:16,809 INFO L87 Difference]: Start difference. First operand 2591 states and 3697 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:38:18,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:20,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:23,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:25,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:27,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:29,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:38:31,688 INFO L93 Difference]: Finished difference Result 7632 states and 10965 transitions. [2021-12-06 18:38:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:38:31,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2021-12-06 18:38:31,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:38:31,717 INFO L225 Difference]: With dead ends: 7632 [2021-12-06 18:38:31,717 INFO L226 Difference]: Without dead ends: 5053 [2021-12-06 18:38:31,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:38:31,725 INFO L933 BasicCegarLoop]: 1035 mSDtfsCounter, 1308 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 883 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:38:31,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1411 Valid, 3390 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [883 Valid, 1327 Invalid, 6 Unknown, 0 Unchecked, 14.7s Time] [2021-12-06 18:38:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5053 states. [2021-12-06 18:38:31,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5053 to 4275. [2021-12-06 18:38:31,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 3162 states have (on average 1.3488298545224542) internal successors, (4265), 3224 states have internal predecessors, (4265), 829 states have call successors, (829), 262 states have call predecessors, (829), 283 states have return successors, (918), 816 states have call predecessors, (918), 828 states have call successors, (918) [2021-12-06 18:38:31,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 6012 transitions. [2021-12-06 18:38:31,888 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 6012 transitions. Word has length 113 [2021-12-06 18:38:31,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:38:31,889 INFO L470 AbstractCegarLoop]: Abstraction has 4275 states and 6012 transitions. [2021-12-06 18:38:31,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:38:31,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 6012 transitions. [2021-12-06 18:38:31,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-06 18:38:31,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:38:31,896 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:31,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:38:31,897 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:38:31,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:31,897 INFO L85 PathProgramCache]: Analyzing trace with hash 265725666, now seen corresponding path program 1 times [2021-12-06 18:38:31,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:31,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879165458] [2021-12-06 18:38:31,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:31,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:38:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:38:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:38:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:38:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:38:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 18:38:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 18:38:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:38:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 18:38:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 18:38:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 18:38:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 18:38:32,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:32,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879165458] [2021-12-06 18:38:32,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879165458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:32,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:32,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:38:32,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073281499] [2021-12-06 18:38:32,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:32,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:38:32,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:32,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:38:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:38:32,225 INFO L87 Difference]: Start difference. First operand 4275 states and 6012 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 18:38:34,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:36,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:38,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:40,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:43,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:38:43,216 INFO L93 Difference]: Finished difference Result 10577 states and 14962 transitions. [2021-12-06 18:38:43,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:38:43,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2021-12-06 18:38:43,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:38:43,246 INFO L225 Difference]: With dead ends: 10577 [2021-12-06 18:38:43,247 INFO L226 Difference]: Without dead ends: 6318 [2021-12-06 18:38:43,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:38:43,259 INFO L933 BasicCegarLoop]: 1216 mSDtfsCounter, 826 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 417 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:38:43,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [890 Valid, 4374 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 1210 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2021-12-06 18:38:43,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6318 states. [2021-12-06 18:38:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6318 to 5704. [2021-12-06 18:38:43,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 4250 states have (on average 1.3538823529411765) internal successors, (5754), 4336 states have internal predecessors, (5754), 1066 states have call successors, (1066), 358 states have call predecessors, (1066), 387 states have return successors, (1183), 1041 states have call predecessors, (1183), 1065 states have call successors, (1183) [2021-12-06 18:38:43,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 8003 transitions. [2021-12-06 18:38:43,471 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 8003 transitions. Word has length 130 [2021-12-06 18:38:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:38:43,471 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 8003 transitions. [2021-12-06 18:38:43,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 18:38:43,471 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 8003 transitions. [2021-12-06 18:38:43,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-06 18:38:43,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:38:43,481 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:43,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:38:43,482 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:38:43,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:43,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1355234686, now seen corresponding path program 1 times [2021-12-06 18:38:43,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:43,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112280038] [2021-12-06 18:38:43,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:43,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:38:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:38:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:38:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:38:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 18:38:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 18:38:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 18:38:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 18:38:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 18:38:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 18:38:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-06 18:38:43,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:43,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112280038] [2021-12-06 18:38:43,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112280038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:43,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:43,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 18:38:43,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65612482] [2021-12-06 18:38:43,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:43,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:38:43,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:43,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:38:43,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:38:43,867 INFO L87 Difference]: Start difference. First operand 5704 states and 8003 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-06 18:38:46,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:48,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:49,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:38:49,957 INFO L93 Difference]: Finished difference Result 12348 states and 17757 transitions. [2021-12-06 18:38:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:38:49,957 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) Word has length 138 [2021-12-06 18:38:49,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:38:49,991 INFO L225 Difference]: With dead ends: 12348 [2021-12-06 18:38:49,991 INFO L226 Difference]: Without dead ends: 6671 [2021-12-06 18:38:50,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:38:50,026 INFO L933 BasicCegarLoop]: 900 mSDtfsCounter, 322 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 348 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 4417 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-06 18:38:50,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 4417 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 1063 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2021-12-06 18:38:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2021-12-06 18:38:50,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 5952. [2021-12-06 18:38:50,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5952 states, 4396 states have (on average 1.3475887170154686) internal successors, (5924), 4500 states have internal predecessors, (5924), 1142 states have call successors, (1142), 358 states have call predecessors, (1142), 413 states have return successors, (1329), 1125 states have call predecessors, (1329), 1141 states have call successors, (1329) [2021-12-06 18:38:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5952 states to 5952 states and 8395 transitions. [2021-12-06 18:38:50,229 INFO L78 Accepts]: Start accepts. Automaton has 5952 states and 8395 transitions. Word has length 138 [2021-12-06 18:38:50,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:38:50,229 INFO L470 AbstractCegarLoop]: Abstraction has 5952 states and 8395 transitions. [2021-12-06 18:38:50,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-06 18:38:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5952 states and 8395 transitions. [2021-12-06 18:38:50,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-06 18:38:50,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:38:50,240 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:50,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:38:50,240 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:38:50,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:50,241 INFO L85 PathProgramCache]: Analyzing trace with hash 324022734, now seen corresponding path program 1 times [2021-12-06 18:38:50,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:50,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022286651] [2021-12-06 18:38:50,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:50,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:38:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:38:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:38:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:38:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 18:38:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 18:38:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 18:38:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 18:38:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 18:38:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 18:38:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:38:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:50,648 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-06 18:38:50,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:50,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022286651] [2021-12-06 18:38:50,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022286651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:50,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:50,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:38:50,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520654185] [2021-12-06 18:38:50,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:50,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 18:38:50,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:50,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 18:38:50,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-06 18:38:50,650 INFO L87 Difference]: Start difference. First operand 5952 states and 8395 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 18:38:52,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:54,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:38:54,673 INFO L93 Difference]: Finished difference Result 12600 states and 17885 transitions. [2021-12-06 18:38:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:38:54,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 145 [2021-12-06 18:38:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:38:54,704 INFO L225 Difference]: With dead ends: 12600 [2021-12-06 18:38:54,705 INFO L226 Difference]: Without dead ends: 6675 [2021-12-06 18:38:54,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:38:54,719 INFO L933 BasicCegarLoop]: 897 mSDtfsCounter, 429 mSDsluCounter, 5111 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 503 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 6008 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:38:54,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 6008 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1331 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-12-06 18:38:54,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2021-12-06 18:38:54,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 6000. [2021-12-06 18:38:54,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6000 states, 4432 states have (on average 1.3447653429602888) internal successors, (5960), 4532 states have internal predecessors, (5960), 1142 states have call successors, (1142), 358 states have call predecessors, (1142), 425 states have return successors, (1375), 1141 states have call predecessors, (1375), 1141 states have call successors, (1375) [2021-12-06 18:38:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6000 states to 6000 states and 8477 transitions. [2021-12-06 18:38:54,921 INFO L78 Accepts]: Start accepts. Automaton has 6000 states and 8477 transitions. Word has length 145 [2021-12-06 18:38:54,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:38:54,922 INFO L470 AbstractCegarLoop]: Abstraction has 6000 states and 8477 transitions. [2021-12-06 18:38:54,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 18:38:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 6000 states and 8477 transitions. [2021-12-06 18:38:54,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-06 18:38:54,933 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:38:54,933 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:54,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:38:54,933 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:38:54,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:54,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1003509590, now seen corresponding path program 1 times [2021-12-06 18:38:54,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:54,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203152971] [2021-12-06 18:38:54,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:54,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:38:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:38:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:38:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:38:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 18:38:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 18:38:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 18:38:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 18:38:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 18:38:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:38:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 18:38:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:38:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:55,310 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-06 18:38:55,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:55,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203152971] [2021-12-06 18:38:55,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203152971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:55,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:55,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:38:55,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047211162] [2021-12-06 18:38:55,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:55,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:38:55,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:55,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:38:55,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:38:55,312 INFO L87 Difference]: Start difference. First operand 6000 states and 8477 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 18:38:57,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:59,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:01,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:03,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:39:03,713 INFO L93 Difference]: Finished difference Result 12649 states and 17960 transitions. [2021-12-06 18:39:03,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:39:03,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 151 [2021-12-06 18:39:03,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:39:03,734 INFO L225 Difference]: With dead ends: 12649 [2021-12-06 18:39:03,734 INFO L226 Difference]: Without dead ends: 6657 [2021-12-06 18:39:03,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:39:03,746 INFO L933 BasicCegarLoop]: 897 mSDtfsCounter, 434 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 508 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 3980 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:39:03,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 3980 Invalid, 1620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 1109 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2021-12-06 18:39:03,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6657 states. [2021-12-06 18:39:03,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6657 to 6009. [2021-12-06 18:39:03,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6009 states, 4441 states have (on average 1.3440666516550326) internal successors, (5969), 4541 states have internal predecessors, (5969), 1142 states have call successors, (1142), 358 states have call predecessors, (1142), 425 states have return successors, (1375), 1141 states have call predecessors, (1375), 1141 states have call successors, (1375) [2021-12-06 18:39:03,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6009 states to 6009 states and 8486 transitions. [2021-12-06 18:39:03,945 INFO L78 Accepts]: Start accepts. Automaton has 6009 states and 8486 transitions. Word has length 151 [2021-12-06 18:39:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:39:03,945 INFO L470 AbstractCegarLoop]: Abstraction has 6009 states and 8486 transitions. [2021-12-06 18:39:03,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 18:39:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 6009 states and 8486 transitions. [2021-12-06 18:39:03,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-06 18:39:03,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:39:03,956 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:03,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:39:03,956 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:39:03,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:03,957 INFO L85 PathProgramCache]: Analyzing trace with hash -671508138, now seen corresponding path program 1 times [2021-12-06 18:39:03,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:03,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281282361] [2021-12-06 18:39:03,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:03,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:39:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:39:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:39:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:39:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:39:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:39:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:39:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 18:39:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 18:39:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:39:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 18:39:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:39:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,470 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-06 18:39:04,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:04,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281282361] [2021-12-06 18:39:04,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281282361] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:39:04,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309158360] [2021-12-06 18:39:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:04,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:39:04,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:39:04,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:39:04,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 18:39:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:04,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 18:39:04,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:39:05,078 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-06 18:39:05,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:39:05,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309158360] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:05,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:39:05,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-06 18:39:05,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253065662] [2021-12-06 18:39:05,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:05,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:39:05,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:05,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:39:05,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:39:05,080 INFO L87 Difference]: Start difference. First operand 6009 states and 8486 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 18:39:05,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:39:05,241 INFO L93 Difference]: Finished difference Result 9166 states and 12912 transitions. [2021-12-06 18:39:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:39:05,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 152 [2021-12-06 18:39:05,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:39:05,250 INFO L225 Difference]: With dead ends: 9166 [2021-12-06 18:39:05,250 INFO L226 Difference]: Without dead ends: 3175 [2021-12-06 18:39:05,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:39:05,262 INFO L933 BasicCegarLoop]: 942 mSDtfsCounter, 24 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3758 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:39:05,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 3758 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:39:05,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2021-12-06 18:39:05,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 3079. [2021-12-06 18:39:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 2279 states have (on average 1.3422553751645458) internal successors, (3059), 2329 states have internal predecessors, (3059), 578 states have call successors, (578), 188 states have call predecessors, (578), 221 states have return successors, (694), 577 states have call predecessors, (694), 577 states have call successors, (694) [2021-12-06 18:39:05,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 4331 transitions. [2021-12-06 18:39:05,357 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 4331 transitions. Word has length 152 [2021-12-06 18:39:05,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:39:05,358 INFO L470 AbstractCegarLoop]: Abstraction has 3079 states and 4331 transitions. [2021-12-06 18:39:05,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 18:39:05,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 4331 transitions. [2021-12-06 18:39:05,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-06 18:39:05,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:39:05,378 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:05,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:39:05,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-06 18:39:05,579 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:39:05,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:05,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1205243631, now seen corresponding path program 1 times [2021-12-06 18:39:05,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:05,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063086168] [2021-12-06 18:39:05,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:05,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:39:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:39:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:39:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:39:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:39:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:39:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-06 18:39:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 18:39:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 18:39:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 18:39:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:39:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:05,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 18:39:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:06,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:06,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:39:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-06 18:39:06,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:06,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063086168] [2021-12-06 18:39:06,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063086168] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:39:06,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641634596] [2021-12-06 18:39:06,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:06,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:39:06,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:39:06,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:39:06,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 18:39:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:07,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 18:39:07,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:39:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-06 18:39:07,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:39:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-06 18:39:07,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641634596] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:39:07,654 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:39:07,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2021-12-06 18:39:07,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863755432] [2021-12-06 18:39:07,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:39:07,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 18:39:07,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:07,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 18:39:07,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:39:07,656 INFO L87 Difference]: Start difference. First operand 3079 states and 4331 transitions. Second operand has 14 states, 14 states have (on average 10.0) internal successors, (140), 10 states have internal predecessors, (140), 2 states have call successors, (41), 6 states have call predecessors, (41), 5 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-06 18:39:09,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:12,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:14,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:39:14,146 INFO L93 Difference]: Finished difference Result 6479 states and 9163 transitions. [2021-12-06 18:39:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:39:14,146 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 10 states have internal predecessors, (140), 2 states have call successors, (41), 6 states have call predecessors, (41), 5 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 158 [2021-12-06 18:39:14,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:39:14,155 INFO L225 Difference]: With dead ends: 6479 [2021-12-06 18:39:14,155 INFO L226 Difference]: Without dead ends: 3415 [2021-12-06 18:39:14,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 337 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2021-12-06 18:39:14,161 INFO L933 BasicCegarLoop]: 923 mSDtfsCounter, 443 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 496 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 5329 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:39:14,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 5329 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 1210 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-12-06 18:39:14,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3415 states. [2021-12-06 18:39:14,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3415 to 3086. [2021-12-06 18:39:14,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3086 states, 2286 states have (on average 1.3412073490813647) internal successors, (3066), 2336 states have internal predecessors, (3066), 578 states have call successors, (578), 188 states have call predecessors, (578), 221 states have return successors, (694), 577 states have call predecessors, (694), 577 states have call successors, (694) [2021-12-06 18:39:14,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 4338 transitions. [2021-12-06 18:39:14,240 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 4338 transitions. Word has length 158 [2021-12-06 18:39:14,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:39:14,240 INFO L470 AbstractCegarLoop]: Abstraction has 3086 states and 4338 transitions. [2021-12-06 18:39:14,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 10 states have internal predecessors, (140), 2 states have call successors, (41), 6 states have call predecessors, (41), 5 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-06 18:39:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 4338 transitions. [2021-12-06 18:39:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 18:39:14,246 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:39:14,246 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:14,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 18:39:14,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:39:14,447 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:39:14,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:14,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2144584603, now seen corresponding path program 2 times [2021-12-06 18:39:14,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:14,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830967191] [2021-12-06 18:39:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:14,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:39:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:39:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:39:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:39:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:39:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 18:39:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:39:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:39:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 18:39:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 18:39:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:39:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 18:39:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:14,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:15,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:15,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:39:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-12-06 18:39:15,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:15,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830967191] [2021-12-06 18:39:15,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830967191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:15,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:39:15,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-06 18:39:15,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958566967] [2021-12-06 18:39:15,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:15,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 18:39:15,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:15,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 18:39:15,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2021-12-06 18:39:15,368 INFO L87 Difference]: Start difference. First operand 3086 states and 4338 transitions. Second operand has 19 states, 18 states have (on average 5.888888888888889) internal successors, (106), 11 states have internal predecessors, (106), 3 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 18:39:17,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:19,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:22,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:39:22,839 INFO L93 Difference]: Finished difference Result 6457 states and 9221 transitions. [2021-12-06 18:39:22,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 18:39:22,839 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.888888888888889) internal successors, (106), 11 states have internal predecessors, (106), 3 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2021-12-06 18:39:22,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:39:22,852 INFO L225 Difference]: With dead ends: 6457 [2021-12-06 18:39:22,852 INFO L226 Difference]: Without dead ends: 3417 [2021-12-06 18:39:22,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2021-12-06 18:39:22,860 INFO L933 BasicCegarLoop]: 930 mSDtfsCounter, 442 mSDsluCounter, 11230 mSDsCounter, 0 mSdLazyCounter, 2510 mSolverCounterSat, 482 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 12160 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 2510 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:39:22,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 12160 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 2510 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-12-06 18:39:22,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3417 states. [2021-12-06 18:39:22,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3417 to 3098. [2021-12-06 18:39:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3098 states, 2297 states have (on average 1.3369612538093165) internal successors, (3071), 2342 states have internal predecessors, (3071), 578 states have call successors, (578), 188 states have call predecessors, (578), 222 states have return successors, (698), 583 states have call predecessors, (698), 577 states have call successors, (698) [2021-12-06 18:39:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 4347 transitions. [2021-12-06 18:39:22,941 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 4347 transitions. Word has length 161 [2021-12-06 18:39:22,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:39:22,941 INFO L470 AbstractCegarLoop]: Abstraction has 3098 states and 4347 transitions. [2021-12-06 18:39:22,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.888888888888889) internal successors, (106), 11 states have internal predecessors, (106), 3 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 18:39:22,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 4347 transitions. [2021-12-06 18:39:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-06 18:39:22,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:39:22,947 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:22,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:39:22,947 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:39:22,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:22,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1475945336, now seen corresponding path program 1 times [2021-12-06 18:39:22,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:22,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450043246] [2021-12-06 18:39:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:22,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:39:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:39:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:39:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:39:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:39:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 18:39:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:39:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:39:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 18:39:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:39:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 18:39:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 18:39:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:39:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 18:39:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:39:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 18:39:23,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:23,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450043246] [2021-12-06 18:39:23,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450043246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:23,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:39:23,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:39:23,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709980273] [2021-12-06 18:39:23,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:23,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:39:23,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:23,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:39:23,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:39:23,209 INFO L87 Difference]: Start difference. First operand 3098 states and 4347 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-06 18:39:25,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:27,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:39:29,436 INFO L93 Difference]: Finished difference Result 7298 states and 10254 transitions. [2021-12-06 18:39:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:39:29,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 172 [2021-12-06 18:39:29,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:39:29,446 INFO L225 Difference]: With dead ends: 7298 [2021-12-06 18:39:29,446 INFO L226 Difference]: Without dead ends: 4246 [2021-12-06 18:39:29,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:39:29,452 INFO L933 BasicCegarLoop]: 1066 mSDtfsCounter, 1117 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 668 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:39:29,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1202 Valid, 2767 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 870 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2021-12-06 18:39:29,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2021-12-06 18:39:29,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3955. [2021-12-06 18:39:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3955 states, 2955 states have (on average 1.3380710659898478) internal successors, (3954), 3010 states have internal predecessors, (3954), 704 states have call successors, (704), 248 states have call predecessors, (704), 295 states have return successors, (861), 714 states have call predecessors, (861), 703 states have call successors, (861) [2021-12-06 18:39:29,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3955 states to 3955 states and 5519 transitions. [2021-12-06 18:39:29,549 INFO L78 Accepts]: Start accepts. Automaton has 3955 states and 5519 transitions. Word has length 172 [2021-12-06 18:39:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:39:29,549 INFO L470 AbstractCegarLoop]: Abstraction has 3955 states and 5519 transitions. [2021-12-06 18:39:29,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-06 18:39:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3955 states and 5519 transitions. [2021-12-06 18:39:29,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-06 18:39:29,554 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:39:29,554 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:29,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 18:39:29,555 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:39:29,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:29,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1162446187, now seen corresponding path program 1 times [2021-12-06 18:39:29,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:29,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222593405] [2021-12-06 18:39:29,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:29,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:39:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:39:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:39:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:39:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:39:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 18:39:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:39:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 18:39:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 18:39:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 18:39:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 18:39:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:39:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 18:39:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:29,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:39:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:30,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:39:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:30,377 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-06 18:39:30,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:30,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222593405] [2021-12-06 18:39:30,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222593405] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:30,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:39:30,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-06 18:39:30,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393655812] [2021-12-06 18:39:30,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:30,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 18:39:30,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:30,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 18:39:30,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2021-12-06 18:39:30,379 INFO L87 Difference]: Start difference. First operand 3955 states and 5519 transitions. Second operand has 19 states, 18 states have (on average 6.055555555555555) internal successors, (109), 11 states have internal predecessors, (109), 3 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 18:39:32,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:34,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:36,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:40,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:39:40,559 INFO L93 Difference]: Finished difference Result 8258 states and 11696 transitions. [2021-12-06 18:39:40,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 18:39:40,560 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.055555555555555) internal successors, (109), 11 states have internal predecessors, (109), 3 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 2 states have call successors, (19) Word has length 170 [2021-12-06 18:39:40,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:39:40,570 INFO L225 Difference]: With dead ends: 8258 [2021-12-06 18:39:40,570 INFO L226 Difference]: Without dead ends: 4349 [2021-12-06 18:39:40,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2021-12-06 18:39:40,578 INFO L933 BasicCegarLoop]: 919 mSDtfsCounter, 224 mSDsluCounter, 11527 mSDsCounter, 0 mSdLazyCounter, 2838 mSolverCounterSat, 187 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 12446 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 2838 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-12-06 18:39:40,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 12446 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 2838 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2021-12-06 18:39:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2021-12-06 18:39:40,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 3968. [2021-12-06 18:39:40,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 2966 states have (on average 1.3354686446392448) internal successors, (3961), 3018 states have internal predecessors, (3961), 704 states have call successors, (704), 248 states have call predecessors, (704), 297 states have return successors, (864), 719 states have call predecessors, (864), 703 states have call successors, (864) [2021-12-06 18:39:40,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5529 transitions. [2021-12-06 18:39:40,681 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5529 transitions. Word has length 170 [2021-12-06 18:39:40,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:39:40,681 INFO L470 AbstractCegarLoop]: Abstraction has 3968 states and 5529 transitions. [2021-12-06 18:39:40,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.055555555555555) internal successors, (109), 11 states have internal predecessors, (109), 3 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 18:39:40,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5529 transitions. [2021-12-06 18:39:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-06 18:39:40,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:39:40,687 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:40,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:39:40,687 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:39:40,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:40,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1723005698, now seen corresponding path program 1 times [2021-12-06 18:39:40,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:40,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963937313] [2021-12-06 18:39:40,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:40,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:39:41,238 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:39:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:39:41,598 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:39:41,598 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 18:39:41,598 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 18:39:41,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 18:39:41,602 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:41,604 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:39:41,634 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-12-06 18:39:41,651 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,651 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,652 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,652 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,652 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,652 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,653 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,653 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,653 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,653 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-12-06 18:39:41,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:39:41 BoogieIcfgContainer [2021-12-06 18:39:41,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:39:41,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:39:41,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:39:41,782 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:39:41,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:38:02" (3/4) ... [2021-12-06 18:39:41,784 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 18:39:41,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:39:41,785 INFO L158 Benchmark]: Toolchain (without parser) took 105168.27ms. Allocated memory was 107.0MB in the beginning and 1.1GB in the end (delta: 971.0MB). Free memory was 73.7MB in the beginning and 749.8MB in the end (delta: -676.1MB). Peak memory consumption was 293.5MB. Max. memory is 16.1GB. [2021-12-06 18:39:41,785 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory was 79.4MB in the beginning and 79.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:39:41,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1546.57ms. Allocated memory was 107.0MB in the beginning and 205.5MB in the end (delta: 98.6MB). Free memory was 73.7MB in the beginning and 146.1MB in the end (delta: -72.4MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2021-12-06 18:39:41,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 135.62ms. Allocated memory is still 205.5MB. Free memory was 146.1MB in the beginning and 132.4MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 18:39:41,786 INFO L158 Benchmark]: Boogie Preprocessor took 116.28ms. Allocated memory is still 205.5MB. Free memory was 132.4MB in the beginning and 116.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 18:39:41,786 INFO L158 Benchmark]: RCFGBuilder took 4027.53ms. Allocated memory was 205.5MB in the beginning and 278.9MB in the end (delta: 73.4MB). Free memory was 116.7MB in the beginning and 147.6MB in the end (delta: -30.9MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2021-12-06 18:39:41,786 INFO L158 Benchmark]: TraceAbstraction took 99334.95ms. Allocated memory was 278.9MB in the beginning and 1.1GB in the end (delta: 799.0MB). Free memory was 147.6MB in the beginning and 749.8MB in the end (delta: -602.2MB). Peak memory consumption was 195.7MB. Max. memory is 16.1GB. [2021-12-06 18:39:41,786 INFO L158 Benchmark]: Witness Printer took 2.62ms. Allocated memory is still 1.1GB. Free memory is still 749.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:39:41,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory was 79.4MB in the beginning and 79.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1546.57ms. Allocated memory was 107.0MB in the beginning and 205.5MB in the end (delta: 98.6MB). Free memory was 73.7MB in the beginning and 146.1MB in the end (delta: -72.4MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 135.62ms. Allocated memory is still 205.5MB. Free memory was 146.1MB in the beginning and 132.4MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.28ms. Allocated memory is still 205.5MB. Free memory was 132.4MB in the beginning and 116.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 4027.53ms. Allocated memory was 205.5MB in the beginning and 278.9MB in the end (delta: 73.4MB). Free memory was 116.7MB in the beginning and 147.6MB in the end (delta: -30.9MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * TraceAbstraction took 99334.95ms. Allocated memory was 278.9MB in the beginning and 1.1GB in the end (delta: 799.0MB). Free memory was 147.6MB in the beginning and 749.8MB in the end (delta: -602.2MB). Peak memory consumption was 195.7MB. Max. memory is 16.1GB. * Witness Printer took 2.62ms. Allocated memory is still 1.1GB. Free memory is still 749.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 7323]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 8887, overapproximation of bitwiseAnd at line 8897. Possible FailurePath: [L7346] int LDV_IN_INTERRUPT = 1; [L7347] struct usb_interface *mwifiex_usb_driver_group1 ; [L7348] int ldv_state_variable_2 ; [L7349] int ref_cnt ; [L7350] struct mwifiex_adapter *usb_ops_group0 ; [L7351] int ldv_state_variable_1 ; [L7352] int usb_counter ; [L7353] struct sk_buff *usb_ops_group1 ; [L7354] int ldv_state_variable_0 ; [L7514] static u8 user_rmmod ; [L7516] static struct semaphore add_remove_card_sem ; [L7517-L7527] static struct usb_device_id mwifiex_usb_table[5U] = { {3U, 4742U, 8259U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {899U, 4742U, 8260U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 255U, 255U, 255U, (unsigned char)0, 0UL}, {3U, 4742U, 8261U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {899U, 4742U, 8262U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 255U, 255U, 255U, (unsigned char)0, 0UL}}; [L7528] struct usb_device_id const __mod_usb__mwifiex_usb_table_device_table ; [L8349-L8355] static struct usb_driver mwifiex_usb_driver = {"mwifiex_usb", & mwifiex_usb_probe, & mwifiex_usb_disconnect, 0, & mwifiex_usb_suspend, & mwifiex_usb_resume, 0, 0, 0, (struct usb_device_id const *)(& mwifiex_usb_table), {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, 1U}; [L8862-L8866] static struct mwifiex_if_ops usb_ops = {0, 0, 0, 0, & mwifiex_register_dev, & mwifiex_unregister_dev, 0, 0, 0, & mwifiex_usb_host_to_card, & mwifiex_pm_wakeup_card, & mwifiex_pm_wakeup_card_complete, 0, 0, & mwifiex_usb_cmd_event_complete, & mwifiex_usb_cmd_event_complete, & mwifiex_usb_data_complete, 0, & mwifiex_usb_dnld_fw, 0, 0, 0}; [L8920] int ldv_retval_0 ; [L8921] int ldv_retval_4 ; [L8922] int ldv_retval_1 ; [L8926] int ldv_retval_3 ; [L8927] int ldv_retval_2 ; [L9241] Element set_impl[15] ; [L9242] int last_index = 0; [L9376] Set LDV_SKBS ; VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8951] u8 ldvarg1 ; [L8952] u8 tmp ; [L8953] struct mwifiex_tx_param *ldvarg0 ; [L8954] void *tmp___0 ; [L8955] struct mwifiex_fw_image *ldvarg2 ; [L8956] void *tmp___1 ; [L8957] struct usb_device_id *ldvarg4 ; [L8958] void *tmp___2 ; [L8959] pm_message_t ldvarg3 ; [L8960] int tmp___3 ; [L8961] int tmp___4 ; [L8962] int tmp___5 ; [L8963] int tmp___6 ; [L8965] tmp = __VERIFIER_nondet_u8() [L8966] ldvarg1 = tmp VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1=11, ldvarg3={181:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8967] CALL, EXPR ldv_zalloc(4UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7288] void *p ; [L7289] void *tmp ; [L7290] int tmp___0 ; [L7292] tmp___0 = __VERIFIER_nondet_int() [L7293] COND TRUE tmp___0 != 0 [L7294] return ((void *)0); VAL [\old(size)=4, \result={0:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=4, tmp___0=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8967] RET, EXPR ldv_zalloc(4UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(4UL)={0:0}, ldvarg1=11, ldvarg3={181:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8967] tmp___0 = ldv_zalloc(4UL) [L8968] ldvarg0 = (struct mwifiex_tx_param *)tmp___0 VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=11, ldvarg3={181:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8969] CALL, EXPR ldv_zalloc(32UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7288] void *p ; [L7289] void *tmp ; [L7290] int tmp___0 ; [L7292] tmp___0 = __VERIFIER_nondet_int() [L7293] COND TRUE tmp___0 != 0 [L7294] return ((void *)0); VAL [\old(size)=32, \result={0:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=32, tmp___0=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8969] RET, EXPR ldv_zalloc(32UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(32UL)={0:0}, ldvarg0={0:0}, ldvarg1=11, ldvarg3={181:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8969] tmp___1 = ldv_zalloc(32UL) [L8970] ldvarg2 = (struct mwifiex_fw_image *)tmp___1 VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8971] CALL, EXPR ldv_zalloc(32UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7288] void *p ; [L7289] void *tmp ; [L7290] int tmp___0 ; [L7292] tmp___0 = __VERIFIER_nondet_int() [L7293] COND TRUE tmp___0 != 0 [L7294] return ((void *)0); VAL [\old(size)=32, \result={0:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=32, tmp___0=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8971] RET, EXPR ldv_zalloc(32UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(32UL)={0:0}, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8971] tmp___2 = ldv_zalloc(32UL) [L8972] ldvarg4 = (struct usb_device_id *)tmp___2 [L8973] CALL ldv_initialize() [L9395] CALL ldv_set_init(LDV_SKBS) [L9247] set = set_impl [L9248] last_index = 0 VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set={0:0}, set={167:0}, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9395] RET ldv_set_init(LDV_SKBS) [L8973] RET ldv_initialize() [L8974] FCALL memset((void *)(& ldvarg3), 0, 4UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, memset((void *)(& ldvarg3), 0, 4UL)={181:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8975] ldv_state_variable_1 = 0 [L8976] ref_cnt = 0 [L8977] ldv_state_variable_0 = 1 [L8978] ldv_state_variable_2 = 0 VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8980] tmp___3 = __VERIFIER_nondet_int() [L8982] case 0: [L9056] case 1: VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9057] COND TRUE ldv_state_variable_0 != 0 [L9058] tmp___5 = __VERIFIER_nondet_int() [L9060] case 0: [L9068] case 1: VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___5=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9069] COND TRUE ldv_state_variable_0 == 1 [L9070] CALL, EXPR mwifiex_usb_init_module() [L8869] int ret ; [L8870] struct _ddebug descriptor ; [L8871] long tmp ; [L8872] struct _ddebug descriptor___0 ; [L8873] long tmp___0 ; [L8875] descriptor.modname = "mwifiex_usb" [L8876] descriptor.function = "mwifiex_usb_init_module" [L8877] descriptor.filename = "/work/ldvuser/mutilin/launch/work/current--X--drivers/net/--X--defaultlinux-3.16-rc1.tar.xz--X--205_9a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/514/dscv_tempdir/dscv/ri/205_9a/drivers/net/wireless/mwifiex/usb.o.c.prepared" [L8878] descriptor.format = "Marvell USB8797 Driver\n" [L8879] descriptor.lineno = 1046U [L8880] descriptor.flags = 0U [L8881] EXPR descriptor.flags VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, descriptor={183:0}, descriptor.flags=0, descriptor___0={182:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8881] CALL, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [\old(c)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7336] return (exp); VAL [\old(c)=0, \old(exp)=-2, \result=-2, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, c=0, exp=-2, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8881] RET, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, descriptor={183:0}, descriptor.flags=0, descriptor___0={182:0}, last_index=0, ldv__builtin_expect((long )descriptor.flags & 1L, 0L)=-2, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8881] tmp = ldv__builtin_expect((long )descriptor.flags & 1L, 0L) [L8882] COND TRUE tmp != 0L [L8886] CALL sema_init(& add_remove_card_sem, 1) [L7359] struct lock_class_key __key ; [L7360] struct semaphore __constr_expr_0 ; [L7362] __constr_expr_0.lock.raw_lock.ldv_1452.head_tail = 0U [L7363] __constr_expr_0.lock.magic = 3735899821U [L7364] __constr_expr_0.lock.owner_cpu = 4294967295U [L7365] __constr_expr_0.lock.owner = (void *)-1 [L7366] __constr_expr_0.lock.dep_map.key = 0 [L7367] __constr_expr_0.lock.dep_map.class_cache[0] = 0 [L7368] __constr_expr_0.lock.dep_map.class_cache[1] = 0 [L7369] __constr_expr_0.lock.dep_map.name = "(*sem).lock" [L7370] __constr_expr_0.lock.dep_map.cpu = 0 [L7371] __constr_expr_0.lock.dep_map.ip = 0UL [L7372] __constr_expr_0.count = (unsigned int )val [L7373] __constr_expr_0.wait_list.next = & sem->wait_list [L7374] __constr_expr_0.wait_list.prev = & sem->wait_list [L7375] *sem = __constr_expr_0 [L7376] FCALL lockdep_init_map(& sem->lock.dep_map, "semaphore->lock", & __key, 0) [L7377] return; [L7377] return; VAL [\old(val)=1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, sem={163:0}, sem={163:0}, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0, val=1] [L8886] RET sema_init(& add_remove_card_sem, 1) [L8887] CALL, EXPR ldv_usb_register_driver_17(& mwifiex_usb_driver, & __this_module, "mwifiex_usb") [L9221] ldv_func_ret_type ldv_func_res ; [L9222] int tmp ; [L9224] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L9571] return __VERIFIER_nondet_int(); [L9224] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L9224] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L9225] ldv_func_res = tmp [L9226] ldv_state_variable_2 = 1 [L9227] usb_counter = 0 [L9228] CALL ldv_usb_driver_2() [L8930] void *tmp ; VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8932] CALL, EXPR ldv_zalloc(1560UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7288] void *p ; [L7289] void *tmp ; [L7290] int tmp___0 ; [L7292] tmp___0 = __VERIFIER_nondet_int() [L7293] COND TRUE tmp___0 != 0 [L7294] return ((void *)0); VAL [\old(size)=1560, \result={0:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=1560, tmp___0=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8932] RET, EXPR ldv_zalloc(1560UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ldv_zalloc(1560UL)={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8932] tmp = ldv_zalloc(1560UL) [L8933] mwifiex_usb_driver_group1 = (struct usb_interface *)tmp VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9228] RET ldv_usb_driver_2() [L9229] return (ldv_func_res); VAL [\result=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, ldv_func_arg1={165:0}, ldv_func_arg1={165:0}, ldv_func_arg2={4294967353:4294967322}, ldv_func_arg2={4294967353:4294967322}, ldv_func_arg3={156:0}, ldv_func_arg3={156:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8887] RET, EXPR ldv_usb_register_driver_17(& mwifiex_usb_driver, & __this_module, "mwifiex_usb") [L8887] ret = ldv_usb_register_driver_17(& mwifiex_usb_driver, & __this_module, "mwifiex_usb") [L8888] COND FALSE !(ret != 0) [L8891] descriptor___0.modname = "mwifiex_usb" [L8892] descriptor___0.function = "mwifiex_usb_init_module" [L8893] descriptor___0.filename = "/work/ldvuser/mutilin/launch/work/current--X--drivers/net/--X--defaultlinux-3.16-rc1.tar.xz--X--205_9a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/514/dscv_tempdir/dscv/ri/205_9a/drivers/net/wireless/mwifiex/usb.o.c.prepared" [L8894] descriptor___0.format = "info: Driver registered successfully!\n" [L8895] descriptor___0.lineno = 1054U [L8896] descriptor___0.flags = 0U [L8897] EXPR descriptor___0.flags VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, descriptor={183:0}, descriptor___0={182:0}, descriptor___0.flags=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, ret=0, set_impl={167:0}, tmp=-2, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8897] CALL, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [\old(c)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7336] return (exp); VAL [\old(c)=0, \old(exp)=-3, \result=-3, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, c=0, exp=-3, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8897] RET, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, descriptor={183:0}, descriptor___0={182:0}, descriptor___0.flags=0, last_index=0, ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L)=-3, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, ret=0, set_impl={167:0}, tmp=-2, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8897] tmp___0 = ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) [L8898] COND TRUE tmp___0 != 0L [L8903] return (ret); [L8903] return (ret); [L8903] return (ret); VAL [\result=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, ret=0, set_impl={167:0}, tmp=-2, tmp___0=-3, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9070] RET, EXPR mwifiex_usb_init_module() [L9070] ldv_retval_0 = mwifiex_usb_init_module() [L9071] COND TRUE ldv_retval_0 == 0 [L9072] ldv_state_variable_0 = 3 [L9073] ldv_state_variable_1 = 1 [L9074] CALL ldv_initialize_mwifiex_if_ops_1() [L8939] void *tmp ; [L8940] void *tmp___0 ; VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8942] CALL, EXPR ldv_zalloc(6864UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7288] void *p ; [L7289] void *tmp ; [L7290] int tmp___0 ; [L7292] tmp___0 = __VERIFIER_nondet_int() [L7293] COND TRUE tmp___0 != 0 [L7294] return ((void *)0); VAL [\old(size)=6864, \result={0:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=6864, tmp___0=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8942] RET, EXPR ldv_zalloc(6864UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(6864UL)={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8942] tmp = ldv_zalloc(6864UL) [L8943] usb_ops_group0 = (struct mwifiex_adapter *)tmp VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8944] CALL, EXPR ldv_zalloc(232UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7288] void *p ; [L7289] void *tmp ; [L7290] int tmp___0 ; [L7292] tmp___0 = __VERIFIER_nondet_int() [L7293] COND TRUE tmp___0 != 0 [L7294] return ((void *)0); VAL [\old(size)=232, \result={0:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=232, tmp___0=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8944] RET, EXPR ldv_zalloc(232UL) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(232UL)={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8944] tmp___0 = ldv_zalloc(232UL) [L8945] usb_ops_group1 = (struct sk_buff *)tmp___0 VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp={0:0}, tmp___0={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9074] RET ldv_initialize_mwifiex_if_ops_1() [L9077] COND FALSE !(ldv_retval_0 != 0) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___5=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8980] tmp___3 = __VERIFIER_nondet_int() [L8982] case 0: VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___5=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8983] COND TRUE ldv_state_variable_1 != 0 [L8984] tmp___4 = __VERIFIER_nondet_int() [L8986] case 0: [L8993] case 1: [L9000] case 2: [L9007] case 3: [L9014] case 4: [L9021] case 5: VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=5, tmp___5=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9022] COND TRUE ldv_state_variable_1 == 1 [L9023] CALL mwifiex_usb_dnld_fw(usb_ops_group0, ldvarg2) [L8796] int ret ; [L8797] struct usb_card_rec *card ; [L8799] EXPR adapter->card [L8799] card = (struct usb_card_rec *)adapter->card [L8800] EXPR card->usb_boot_state VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={163:0}, card={167:-25}, card->usb_boot_state=169, fw={0:0}, fw={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8800] COND FALSE !((unsigned int )card->usb_boot_state == 1U) [L8812] CALL, EXPR mwifiex_usb_rx_init(adapter) [L8393] struct usb_card_rec *card ; [L8394] int i ; [L8395] int tmp ; [L8396] int tmp___0 ; [L8398] EXPR adapter->card [L8398] card = (struct usb_card_rec *)adapter->card [L8399] card->rx_cmd.adapter = adapter [L8400] EXPR card->rx_cmd_ep [L8400] card->rx_cmd.ep = card->rx_cmd_ep [L8401] CALL, EXPR usb_alloc_urb(0, 208U) VAL [\old(arg0)=0, \old(arg1)=208, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9548] CALL, EXPR ldv_malloc(sizeof(struct urb)) VAL [\old(size)=184, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7271] void *p ; [L7272] void *tmp ; [L7273] int tmp___0 ; [L7275] tmp___0 = __VERIFIER_nondet_int() [L7276] COND FALSE !(tmp___0 != 0) [L7279] tmp = malloc(size) [L7280] p = tmp VAL [\old(size)=184, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, p={-18446744073709551615:0}, ref_cnt=0, set_impl={167:0}, size=184, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7281] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7267] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, cond=1, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7281] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=184, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, p={-18446744073709551615:0}, ref_cnt=0, set_impl={167:0}, size=184, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7282] return (p); VAL [\old(size)=184, \result={-18446744073709551615:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, p={-18446744073709551615:0}, ref_cnt=0, set_impl={167:0}, size=184, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9548] RET, EXPR ldv_malloc(sizeof(struct urb)) VAL [\old(arg0)=0, \old(arg1)=208, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, arg0=0, arg1=208, last_index=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct urb))={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9548] return ldv_malloc(sizeof(struct urb)); [L8401] RET, EXPR usb_alloc_urb(0, 208U) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={163:0}, card={167:-25}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_alloc_urb(0, 208U)={-18446744073709551615:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8401] card->rx_cmd.urb = usb_alloc_urb(0, 208U) [L8402] EXPR card->rx_cmd.urb VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={163:0}, card={167:-25}, card->rx_cmd.urb={-18446744073709551615:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8402] COND FALSE !((unsigned long )card->rx_cmd.urb == (unsigned long )((struct urb *)0)) [L8407] CALL, EXPR ldv_dev_alloc_skb_14(2048U) VAL [\old(last_index)=0, \old(length)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9212] struct sk_buff *tmp ; VAL [\old(last_index)=0, \old(length)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9214] CALL, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9379] void *skb ; [L9380] void *tmp___7 ; VAL [\old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9382] CALL, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7288] void *p ; [L7289] void *tmp ; [L7290] int tmp___0 ; [L7292] tmp___0 = __VERIFIER_nondet_int() [L7293] COND FALSE !(tmp___0 != 0) [L7296] EXPR, FCALL calloc(1UL, size) [L7296] tmp = calloc(1UL, size) [L7297] p = tmp VAL [\old(last_index)=0, \old(size)=248, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, calloc(1UL, size)={-18446744073709551617:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, p={-18446744073709551617:0}, ref_cnt=0, set_impl={167:0}, size=248, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7298] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, \old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7267] COND FALSE !(!cond) VAL [\old(cond)=1, \old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, cond=1, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7298] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(last_index)=0, \old(size)=248, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, calloc(1UL, size)={-18446744073709551617:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, p={-18446744073709551617:0}, ref_cnt=0, set_impl={167:0}, size=248, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7299] return (p); VAL [\old(last_index)=0, \old(size)=248, \result={-18446744073709551617:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, calloc(1UL, size)={-18446744073709551617:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, p={-18446744073709551617:0}, ref_cnt=0, set_impl={167:0}, size=248, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9382] RET, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(sizeof(struct sk_buff___0 ))={-18446744073709551617:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9382] tmp___7 = ldv_zalloc(sizeof(struct sk_buff___0 )) [L9383] skb = (struct sk_buff___0 *)tmp___7 VAL [\old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, skb={-18446744073709551617:0}, tmp___7={-18446744073709551617:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9384] COND FALSE !(! skb) [L9387] CALL ldv_set_add(LDV_SKBS, skb) [L9255] int i ; [L9257] i = 0 VAL [\old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9258] COND TRUE 1 VAL [\old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9259] COND FALSE !(i < last_index) VAL [\old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9269] COND TRUE last_index < 15 [L9270] set_impl[last_index] = e [L9271] last_index = last_index + 1 VAL [\old(last_index)=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, i=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9387] RET ldv_set_add(LDV_SKBS, skb) [L9388] return (skb); VAL [\old(last_index)=0, \result={-18446744073709551617:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, skb={-18446744073709551617:0}, tmp___7={-18446744073709551617:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9214] RET, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, \old(length)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_skb_alloc()={-18446744073709551617:0}, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9214] tmp = ldv_skb_alloc() [L9215] return (tmp); VAL [\old(last_index)=0, \old(length)=2048, \result={-18446744073709551617:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp={-18446744073709551617:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8407] RET, EXPR ldv_dev_alloc_skb_14(2048U) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={163:0}, card={167:-25}, last_index=1, ldv_dev_alloc_skb_14(2048U)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8407] card->rx_cmd.skb = ldv_dev_alloc_skb_14(2048U) [L8408] EXPR card->rx_cmd.skb VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={163:0}, card={167:-25}, card->rx_cmd.skb={-18446744073709551617:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8408] COND FALSE !((unsigned long )card->rx_cmd.skb == (unsigned long )((struct sk_buff *)0)) [L8413] CALL, EXPR mwifiex_usb_submit_rx_urb(& card->rx_cmd, 2048) VAL [\old(last_index)=1, \old(size)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, ctx={167:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7841] struct mwifiex_adapter *adapter ; [L7842] struct usb_card_rec *card ; [L7843] unsigned int tmp ; [L7844] int tmp___0 ; [L7846] EXPR ctx->adapter [L7846] adapter = ctx->adapter [L7847] EXPR adapter->card [L7847] card = (struct usb_card_rec *)adapter->card [L7848] EXPR card->rx_cmd_ep [L7848] EXPR ctx->ep VAL [\old(last_index)=1, \old(size)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={-18446744073709551617:0}, add_remove_card_sem={163:0}, card={4294967354:-29}, card->rx_cmd_ep=170, ctx={167:0}, ctx={167:0}, ctx->ep=171, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=2048, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7848] COND TRUE (int )card->rx_cmd_ep != (int )ctx->ep [L7849] CALL, EXPR ldv_dev_alloc_skb_14((unsigned int )size) VAL [\old(last_index)=1, \old(length)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9212] struct sk_buff *tmp ; VAL [\old(last_index)=1, \old(length)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9214] CALL, EXPR ldv_skb_alloc() VAL [\old(last_index)=1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9379] void *skb ; [L9380] void *tmp___7 ; VAL [\old(last_index)=1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9382] CALL, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7288] void *p ; [L7289] void *tmp ; [L7290] int tmp___0 ; [L7292] tmp___0 = __VERIFIER_nondet_int() [L7293] COND TRUE tmp___0 != 0 [L7294] return ((void *)0); VAL [\old(last_index)=1, \old(size)=248, \result={0:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=248, tmp___0=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9382] RET, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(sizeof(struct sk_buff___0 ))={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9382] tmp___7 = ldv_zalloc(sizeof(struct sk_buff___0 )) [L9383] skb = (struct sk_buff___0 *)tmp___7 VAL [\old(last_index)=1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, skb={0:0}, tmp___7={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9384] COND TRUE ! skb [L9385] return ((void *)0); VAL [\old(last_index)=1, \result={0:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, skb={0:0}, tmp___7={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9214] RET, EXPR ldv_skb_alloc() VAL [\old(last_index)=1, \old(length)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_skb_alloc()={0:0}, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9214] tmp = ldv_skb_alloc() [L9215] return (tmp); VAL [\old(last_index)=1, \old(length)=2048, \result={0:0}, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp={0:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7849] RET, EXPR ldv_dev_alloc_skb_14((unsigned int )size) VAL [\old(last_index)=1, \old(size)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={-18446744073709551617:0}, add_remove_card_sem={163:0}, card={4294967354:-29}, ctx={167:0}, ctx={167:0}, last_index=1, ldv_dev_alloc_skb_14((unsigned int )size)={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=2048, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7849] ctx->skb = ldv_dev_alloc_skb_14((unsigned int )size) [L7850] EXPR ctx->skb VAL [\old(last_index)=1, \old(size)=2048, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={-18446744073709551617:0}, add_remove_card_sem={163:0}, card={4294967354:-29}, ctx={167:0}, ctx={167:0}, ctx->skb={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=2048, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L7850] COND TRUE (unsigned long )ctx->skb == (unsigned long )((struct sk_buff *)0) [L7851] adapter->dev [L7853] return (-12); VAL [\old(last_index)=1, \old(size)=2048, \result=-12, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={-18446744073709551617:0}, add_remove_card_sem={163:0}, card={4294967354:-29}, ctx={167:0}, ctx={167:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, size=2048, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8413] RET, EXPR mwifiex_usb_submit_rx_urb(& card->rx_cmd, 2048) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={163:0}, card={167:-25}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_submit_rx_urb(& card->rx_cmd, 2048)=-12, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8413] tmp = mwifiex_usb_submit_rx_urb(& card->rx_cmd, 2048) [L8414] COND TRUE tmp != 0 [L8415] return (-1); VAL [\result=-1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={163:0}, card={167:-25}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=-12, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8812] RET, EXPR mwifiex_usb_rx_init(adapter) [L8812] ret = mwifiex_usb_rx_init(adapter) [L8813] COND FALSE !(ret == 0) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={163:0}, card={167:-25}, fw={0:0}, fw={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, ret=-1, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8817] return (ret); VAL [\result=-1, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={163:0}, card={167:-25}, fw={0:0}, fw={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, ret=-1, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9023] RET mwifiex_usb_dnld_fw(usb_ops_group0, ldvarg2) [L9024] ldv_state_variable_1 = 1 VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=5, tmp___5=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8980] tmp___3 = __VERIFIER_nondet_int() [L8982] case 0: [L9056] case 1: VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___4=5, tmp___5=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9057] COND TRUE ldv_state_variable_0 != 0 [L9058] tmp___5 = __VERIFIER_nondet_int() [L9060] case 0: VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___4=5, tmp___5=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L9061] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L9062] CALL mwifiex_usb_cleanup_module() [L8908] int tmp ; [L8910] CALL, EXPR down_interruptible(& add_remove_card_sem) [L9477] return __VERIFIER_nondet_int(); [L8910] RET, EXPR down_interruptible(& add_remove_card_sem) [L8910] tmp = down_interruptible(& add_remove_card_sem) [L8911] COND FALSE !(tmp == 0) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=1, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=0] [L8915] user_rmmod = 1U [L8916] CALL ldv_usb_deregister_18(& mwifiex_usb_driver) [L9235] FCALL usb_deregister(arg) [L9236] ldv_state_variable_2 = 0 VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, arg={165:0}, arg={165:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=1] [L8916] RET ldv_usb_deregister_18(& mwifiex_usb_driver) [L9062] RET mwifiex_usb_cleanup_module() [L9063] ldv_state_variable_0 = 2 VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=11, ldvarg2={0:0}, ldvarg3={181:0}, ldvarg4={0:0}, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp=11, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___4=5, tmp___5=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=1] [L9164] CALL ldv_check_final_state() [L9446] int tmp___7 ; [L9448] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L9337] return (last_index == 0); VAL [\result=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=1] [L9448] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L9448] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L9449] COND FALSE !(\read(tmp___7)) VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, tmp___7=0, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=1] [L9451] CALL ldv_error() VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=1] [L7323] reach_error() VAL [__mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __mod_usb__mwifiex_usb_table_device_table=0, __this_module={4294967353:4294967322}, add_remove_card_sem={163:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={165:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={164:0}, ref_cnt=0, set_impl={167:0}, usb_counter=0, usb_ops={166:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, user_rmmod=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 679 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 99.1s, OverallIterations: 13, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 88.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 29 mSolverCounterUnknown, 8927 SdHoareTripleChecker+Valid, 85.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8320 mSDsluCounter, 66433 SdHoareTripleChecker+Invalid, 81.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54570 mSDsCounter, 5844 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15773 IncrementalHoareTripleChecker+Invalid, 21646 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5844 mSolverCounterUnsat, 11863 mSDtfsCounter, 15773 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 920 GetRequests, 771 SyntacticMatches, 1 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6009occurred in iteration=7, InterpolantAutomatonStates: 123, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 5244 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 2094 NumberOfCodeBlocks, 2094 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2051 ConstructedInterpolants, 0 QuantifiedInterpolants, 4316 SizeOfPredicates, 7 NumberOfNonLiveVariables, 4979 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 1238/1242 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 18:39:41,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 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_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/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--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa --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 03d55f274509719e259063891bf7f51d6ae3645569d8243a0d7434c1b24ad753 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:39:43,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:39:43,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:39:43,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:39:43,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:39:43,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:39:43,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:39:43,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:39:43,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:39:43,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:39:43,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:39:43,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:39:43,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:39:43,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:39:43,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:39:43,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:39:43,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:39:43,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:39:43,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:39:43,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:39:43,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:39:43,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:39:43,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:39:43,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:39:43,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:39:43,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:39:43,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:39:43,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:39:43,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:39:43,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:39:43,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:39:43,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:39:43,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:39:43,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:39:43,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:39:43,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:39:43,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:39:43,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:39:43,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:39:43,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:39:43,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:39:43,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-06 18:39:43,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:39:43,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:39:43,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:39:43,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:39:43,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:39:43,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:39:43,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:39:43,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:39:43,413 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:39:43,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:39:43,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:39:43,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:39:43,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:39:43,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:39:43,414 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 18:39:43,414 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 18:39:43,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 18:39:43,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:39:43,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:39:43,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:39:43,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:39:43,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:39:43,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:39:43,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:39:43,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:39:43,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:39:43,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:39:43,415 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 18:39:43,415 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 18:39:43,416 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:39:43,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:39:43,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:39:43,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:39:43,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 18:39:43,416 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_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d55f274509719e259063891bf7f51d6ae3645569d8243a0d7434c1b24ad753 [2021-12-06 18:39:43,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:39:43,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:39:43,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:39:43,662 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:39:43,662 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:39:43,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2021-12-06 18:39:43,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data/22b576918/bbe692d4b4524f6db6e66973e3233c39/FLAG05dd5ffb8 [2021-12-06 18:39:44,343 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:39:44,343 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2021-12-06 18:39:44,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data/22b576918/bbe692d4b4524f6db6e66973e3233c39/FLAG05dd5ffb8 [2021-12-06 18:39:44,693 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/data/22b576918/bbe692d4b4524f6db6e66973e3233c39 [2021-12-06 18:39:44,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:39:44,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:39:44,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:39:44,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:39:44,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:39:44,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:39:44" (1/1) ... [2021-12-06 18:39:44,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b019a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:44, skipping insertion in model container [2021-12-06 18:39:44,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:39:44" (1/1) ... [2021-12-06 18:39:44,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:39:44,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:39:45,452 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_618477c2-c425-4fec-a90e-833c3f8b90da/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2021-12-06 18:39:45,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:39:45,943 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 18:39:45,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:39:46,115 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_618477c2-c425-4fec-a90e-833c3f8b90da/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2021-12-06 18:39:46,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:39:46,233 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:39:46,341 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_618477c2-c425-4fec-a90e-833c3f8b90da/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2021-12-06 18:39:46,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:39:46,501 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:39:46,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46 WrapperNode [2021-12-06 18:39:46,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:39:46,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:39:46,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:39:46,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:39:46,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,621 INFO L137 Inliner]: procedures = 172, calls = 1181, calls flagged for inlining = 63, calls inlined = 51, statements flattened = 2247 [2021-12-06 18:39:46,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:39:46,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:39:46,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:39:46,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:39:46,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:39:46,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:39:46,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:39:46,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:39:46,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:39:46,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:39:46,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:39:46,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:39:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-06 18:39:46,792 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-06 18:39:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2021-12-06 18:39:46,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2021-12-06 18:39:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-06 18:39:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-06 18:39:46,792 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-06 18:39:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-06 18:39:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-06 18:39:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 18:39:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 18:39:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-06 18:39:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-06 18:39:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-06 18:39:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-06 18:39:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2021-12-06 18:39:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2021-12-06 18:39:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 18:39:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 18:39:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 18:39:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 18:39:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 18:39:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 18:39:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-06 18:39:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-06 18:39:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2021-12-06 18:39:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2021-12-06 18:39:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2021-12-06 18:39:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2021-12-06 18:39:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-06 18:39:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-06 18:39:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 18:39:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 18:39:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-06 18:39:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-06 18:39:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 18:39:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 18:39:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-06 18:39:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-06 18:39:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-06 18:39:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-06 18:39:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-06 18:39:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-06 18:39:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 18:39:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 18:39:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 18:39:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 18:39:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 18:39:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 18:39:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 18:39:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 18:39:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 18:39:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-06 18:39:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-06 18:39:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:39:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-06 18:39:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-06 18:39:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:39:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 18:39:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-06 18:39:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-06 18:39:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-06 18:39:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2021-12-06 18:39:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2021-12-06 18:39:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 18:39:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-06 18:39:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-06 18:39:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2021-12-06 18:39:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2021-12-06 18:39:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-06 18:39:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-06 18:39:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-06 18:39:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-06 18:39:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-06 18:39:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:39:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 18:39:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 18:39:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-06 18:39:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 18:39:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-06 18:39:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-06 18:39:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 18:39:46,800 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 18:39:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-06 18:39:46,801 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-06 18:39:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-06 18:39:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2021-12-06 18:39:46,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2021-12-06 18:39:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-06 18:39:46,801 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-06 18:39:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-06 18:39:46,801 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-06 18:39:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-12-06 18:39:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 18:39:46,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 18:39:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:39:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:39:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-06 18:39:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-06 18:39:47,129 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:39:47,131 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:39:47,270 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 18:40:01,636 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:40:01,648 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:40:01,648 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 18:40:01,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:40:01 BoogieIcfgContainer [2021-12-06 18:40:01,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:40:01,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:40:01,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:40:01,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:40:01,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:39:44" (1/3) ... [2021-12-06 18:40:01,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41803298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:40:01, skipping insertion in model container [2021-12-06 18:40:01,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46" (2/3) ... [2021-12-06 18:40:01,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41803298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:40:01, skipping insertion in model container [2021-12-06 18:40:01,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:40:01" (3/3) ... [2021-12-06 18:40:01,657 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2021-12-06 18:40:01,661 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:40:01,661 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:40:01,699 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:40:01,704 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=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:40:01,704 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:40:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 678 states, 502 states have (on average 1.3764940239043826) internal successors, (691), 515 states have internal predecessors, (691), 137 states have call successors, (137), 38 states have call predecessors, (137), 37 states have return successors, (133), 130 states have call predecessors, (133), 133 states have call successors, (133) [2021-12-06 18:40:01,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 18:40:01,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:01,738 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:01,738 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:01,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:01,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1998328016, now seen corresponding path program 1 times [2021-12-06 18:40:01,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:01,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065273326] [2021-12-06 18:40:01,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:01,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:01,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:01,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:01,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 18:40:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:02,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:40:02,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 18:40:02,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:02,405 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:02,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065273326] [2021-12-06 18:40:02,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065273326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:02,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:02,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:40:02,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029712661] [2021-12-06 18:40:02,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:02,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:40:02,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:02,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:40:02,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:40:02,437 INFO L87 Difference]: Start difference. First operand has 678 states, 502 states have (on average 1.3764940239043826) internal successors, (691), 515 states have internal predecessors, (691), 137 states have call successors, (137), 38 states have call predecessors, (137), 37 states have return successors, (133), 130 states have call predecessors, (133), 133 states have call successors, (133) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 18:40:02,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:02,626 INFO L93 Difference]: Finished difference Result 1354 states and 1960 transitions. [2021-12-06 18:40:02,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:40:02,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2021-12-06 18:40:02,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:02,641 INFO L225 Difference]: With dead ends: 1354 [2021-12-06 18:40:02,642 INFO L226 Difference]: Without dead ends: 668 [2021-12-06 18:40:02,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:40:02,651 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 2 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:02,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2853 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:40:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2021-12-06 18:40:02,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2021-12-06 18:40:02,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 498 states have (on average 1.359437751004016) internal successors, (677), 505 states have internal predecessors, (677), 133 states have call successors, (133), 37 states have call predecessors, (133), 36 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) [2021-12-06 18:40:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 942 transitions. [2021-12-06 18:40:02,752 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 942 transitions. Word has length 45 [2021-12-06 18:40:02,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:02,753 INFO L470 AbstractCegarLoop]: Abstraction has 668 states and 942 transitions. [2021-12-06 18:40:02,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 18:40:02,753 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 942 transitions. [2021-12-06 18:40:02,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 18:40:02,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:02,758 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:02,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:40:02,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:02,959 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:02,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:02,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1712559836, now seen corresponding path program 1 times [2021-12-06 18:40:02,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:02,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907106503] [2021-12-06 18:40:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:02,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:02,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:02,965 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:02,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 18:40:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:03,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:40:03,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 18:40:03,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:40:04,143 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 18:40:04,143 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:04,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907106503] [2021-12-06 18:40:04,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907106503] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:40:04,143 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 18:40:04,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-06 18:40:04,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797604389] [2021-12-06 18:40:04,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 18:40:04,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:40:04,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:04,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:40:04,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:40:04,146 INFO L87 Difference]: Start difference. First operand 668 states and 942 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 18:40:04,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:04,746 INFO L93 Difference]: Finished difference Result 1336 states and 1886 transitions. [2021-12-06 18:40:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:40:04,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 46 [2021-12-06 18:40:04,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:04,755 INFO L225 Difference]: With dead ends: 1336 [2021-12-06 18:40:04,755 INFO L226 Difference]: Without dead ends: 677 [2021-12-06 18:40:04,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:40:04,760 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 11 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3751 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:04,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 3751 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:40:04,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2021-12-06 18:40:04,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 677. [2021-12-06 18:40:04,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 506 states have (on average 1.359683794466403) internal successors, (688), 513 states have internal predecessors, (688), 133 states have call successors, (133), 38 states have call predecessors, (133), 37 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) [2021-12-06 18:40:04,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 953 transitions. [2021-12-06 18:40:04,800 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 953 transitions. Word has length 46 [2021-12-06 18:40:04,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:04,800 INFO L470 AbstractCegarLoop]: Abstraction has 677 states and 953 transitions. [2021-12-06 18:40:04,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 18:40:04,801 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 953 transitions. [2021-12-06 18:40:04,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 18:40:04,803 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:04,804 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:04,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 18:40:05,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:05,006 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:05,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:05,008 INFO L85 PathProgramCache]: Analyzing trace with hash 728136240, now seen corresponding path program 2 times [2021-12-06 18:40:05,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:05,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422025946] [2021-12-06 18:40:05,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 18:40:05,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:05,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:05,014 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:05,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 18:40:05,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 18:40:05,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:40:05,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:40:05,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 18:40:05,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:05,575 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:05,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422025946] [2021-12-06 18:40:05,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422025946] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:05,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:05,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:40:05,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155080564] [2021-12-06 18:40:05,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:05,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:40:05,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:05,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:40:05,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:40:05,578 INFO L87 Difference]: Start difference. First operand 677 states and 953 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 18:40:05,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:05,873 INFO L93 Difference]: Finished difference Result 1955 states and 2762 transitions. [2021-12-06 18:40:05,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:40:05,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 49 [2021-12-06 18:40:05,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:05,884 INFO L225 Difference]: With dead ends: 1955 [2021-12-06 18:40:05,885 INFO L226 Difference]: Without dead ends: 1298 [2021-12-06 18:40:05,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:40:05,887 INFO L933 BasicCegarLoop]: 1075 mSDtfsCounter, 895 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:05,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 1981 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:40:05,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2021-12-06 18:40:05,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1298. [2021-12-06 18:40:05,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 968 states have (on average 1.3646694214876034) internal successors, (1321), 982 states have internal predecessors, (1321), 256 states have call successors, (256), 74 states have call predecessors, (256), 73 states have return successors, (255), 249 states have call predecessors, (255), 255 states have call successors, (255) [2021-12-06 18:40:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1832 transitions. [2021-12-06 18:40:05,954 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1832 transitions. Word has length 49 [2021-12-06 18:40:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:05,955 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 1832 transitions. [2021-12-06 18:40:05,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 18:40:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1832 transitions. [2021-12-06 18:40:05,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-06 18:40:05,959 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:05,959 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:05,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 18:40:06,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:06,160 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:06,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:06,160 INFO L85 PathProgramCache]: Analyzing trace with hash -602378178, now seen corresponding path program 1 times [2021-12-06 18:40:06,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:06,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868663925] [2021-12-06 18:40:06,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:06,162 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:06,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:06,162 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:06,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 18:40:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:06,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1338 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 18:40:06,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 18:40:07,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:07,271 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:07,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868663925] [2021-12-06 18:40:07,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868663925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:07,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:07,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:40:07,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378785004] [2021-12-06 18:40:07,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:07,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:40:07,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:07,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:40:07,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:40:07,273 INFO L87 Difference]: Start difference. First operand 1298 states and 1832 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-06 18:40:08,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:08,904 INFO L93 Difference]: Finished difference Result 2925 states and 4194 transitions. [2021-12-06 18:40:08,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:40:08,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 67 [2021-12-06 18:40:08,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:08,917 INFO L225 Difference]: With dead ends: 2925 [2021-12-06 18:40:08,917 INFO L226 Difference]: Without dead ends: 1647 [2021-12-06 18:40:08,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:40:08,922 INFO L933 BasicCegarLoop]: 1450 mSDtfsCounter, 431 mSDsluCounter, 5282 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 6732 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:08,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 6732 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 18:40:08,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2021-12-06 18:40:08,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1298. [2021-12-06 18:40:08,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 968 states have (on average 1.3636363636363635) internal successors, (1320), 982 states have internal predecessors, (1320), 256 states have call successors, (256), 74 states have call predecessors, (256), 73 states have return successors, (255), 249 states have call predecessors, (255), 255 states have call successors, (255) [2021-12-06 18:40:08,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1831 transitions. [2021-12-06 18:40:08,977 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1831 transitions. Word has length 67 [2021-12-06 18:40:08,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:08,977 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 1831 transitions. [2021-12-06 18:40:08,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-06 18:40:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1831 transitions. [2021-12-06 18:40:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-06 18:40:08,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:08,979 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:09,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 18:40:09,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:09,180 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:09,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:09,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1887150784, now seen corresponding path program 1 times [2021-12-06 18:40:09,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:09,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665320606] [2021-12-06 18:40:09,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:09,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:09,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:09,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:09,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 18:40:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:10,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1338 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:40:10,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 18:40:10,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:10,657 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:10,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665320606] [2021-12-06 18:40:10,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665320606] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:10,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:10,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:40:10,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534742051] [2021-12-06 18:40:10,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:10,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:40:10,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:10,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:40:10,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:40:10,658 INFO L87 Difference]: Start difference. First operand 1298 states and 1831 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:40:11,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:11,030 INFO L93 Difference]: Finished difference Result 3851 states and 5499 transitions. [2021-12-06 18:40:11,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:40:11,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2021-12-06 18:40:11,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:11,050 INFO L225 Difference]: With dead ends: 3851 [2021-12-06 18:40:11,050 INFO L226 Difference]: Without dead ends: 2563 [2021-12-06 18:40:11,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:40:11,057 INFO L933 BasicCegarLoop]: 1128 mSDtfsCounter, 895 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 4317 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:11,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 4317 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:40:11,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-12-06 18:40:11,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2563. [2021-12-06 18:40:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 1910 states have (on average 1.3638743455497382) internal successors, (2605), 1938 states have internal predecessors, (2605), 507 states have call successors, (507), 146 states have call predecessors, (507), 145 states have return successors, (536), 494 states have call predecessors, (536), 506 states have call successors, (536) [2021-12-06 18:40:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3648 transitions. [2021-12-06 18:40:11,165 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3648 transitions. Word has length 67 [2021-12-06 18:40:11,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:11,175 INFO L470 AbstractCegarLoop]: Abstraction has 2563 states and 3648 transitions. [2021-12-06 18:40:11,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:40:11,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3648 transitions. [2021-12-06 18:40:11,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 18:40:11,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:11,181 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 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] [2021-12-06 18:40:11,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 18:40:11,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:11,382 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:11,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:11,383 INFO L85 PathProgramCache]: Analyzing trace with hash 510620113, now seen corresponding path program 1 times [2021-12-06 18:40:11,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:11,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515925350] [2021-12-06 18:40:11,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:11,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:11,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:11,385 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:11,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 18:40:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:12,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1525 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:40:12,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:12,699 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-06 18:40:12,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:12,700 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:12,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515925350] [2021-12-06 18:40:12,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515925350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:12,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:12,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:40:12,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602606464] [2021-12-06 18:40:12,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:12,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:40:12,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:12,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:40:12,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:40:12,702 INFO L87 Difference]: Start difference. First operand 2563 states and 3648 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:40:13,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:13,814 INFO L93 Difference]: Finished difference Result 6763 states and 9544 transitions. [2021-12-06 18:40:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:40:13,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2021-12-06 18:40:13,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:13,845 INFO L225 Difference]: With dead ends: 6763 [2021-12-06 18:40:13,845 INFO L226 Difference]: Without dead ends: 4218 [2021-12-06 18:40:13,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:40:13,855 INFO L933 BasicCegarLoop]: 1095 mSDtfsCounter, 603 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:13,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 1989 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 18:40:13,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4218 states. [2021-12-06 18:40:14,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4218 to 4205. [2021-12-06 18:40:14,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4205 states, 3114 states have (on average 1.3477842003853564) internal successors, (4197), 3162 states have internal predecessors, (4197), 829 states have call successors, (829), 262 states have call predecessors, (829), 261 states have return successors, (876), 808 states have call predecessors, (876), 828 states have call successors, (876) [2021-12-06 18:40:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 5902 transitions. [2021-12-06 18:40:14,025 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 5902 transitions. Word has length 117 [2021-12-06 18:40:14,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:14,025 INFO L470 AbstractCegarLoop]: Abstraction has 4205 states and 5902 transitions. [2021-12-06 18:40:14,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:40:14,026 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 5902 transitions. [2021-12-06 18:40:14,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-06 18:40:14,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:14,033 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:14,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 18:40:14,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:14,233 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:14,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:14,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1507578268, now seen corresponding path program 1 times [2021-12-06 18:40:14,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:14,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103207963] [2021-12-06 18:40:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:14,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:14,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:14,236 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:14,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 18:40:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:15,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:40:15,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-06 18:40:15,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:15,609 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:15,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103207963] [2021-12-06 18:40:15,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103207963] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:15,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:15,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:40:15,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404422166] [2021-12-06 18:40:15,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:15,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:40:15,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:15,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:40:15,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:40:15,612 INFO L87 Difference]: Start difference. First operand 4205 states and 5902 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 18:40:15,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:15,928 INFO L93 Difference]: Finished difference Result 9818 states and 13766 transitions. [2021-12-06 18:40:15,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:40:15,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2021-12-06 18:40:15,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:15,955 INFO L225 Difference]: With dead ends: 9818 [2021-12-06 18:40:15,955 INFO L226 Difference]: Without dead ends: 5633 [2021-12-06 18:40:15,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:40:15,975 INFO L933 BasicCegarLoop]: 1279 mSDtfsCounter, 484 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2179 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:15,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2179 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:40:15,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5633 states. [2021-12-06 18:40:16,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5633 to 5598. [2021-12-06 18:40:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5598 states, 4174 states have (on average 1.35361763296598) internal successors, (5650), 4242 states have internal predecessors, (5650), 1066 states have call successors, (1066), 358 states have call predecessors, (1066), 357 states have return successors, (1129), 1029 states have call predecessors, (1129), 1065 states have call successors, (1129) [2021-12-06 18:40:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5598 states to 5598 states and 7845 transitions. [2021-12-06 18:40:16,136 INFO L78 Accepts]: Start accepts. Automaton has 5598 states and 7845 transitions. Word has length 134 [2021-12-06 18:40:16,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:16,136 INFO L470 AbstractCegarLoop]: Abstraction has 5598 states and 7845 transitions. [2021-12-06 18:40:16,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 18:40:16,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5598 states and 7845 transitions. [2021-12-06 18:40:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-06 18:40:16,156 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:16,156 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:16,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 18:40:16,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:16,357 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:16,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:16,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1851568064, now seen corresponding path program 1 times [2021-12-06 18:40:16,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:16,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288527478] [2021-12-06 18:40:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:16,359 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:16,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:16,359 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:16,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 18:40:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:17,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1594 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:40:17,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-06 18:40:17,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:17,910 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:17,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288527478] [2021-12-06 18:40:17,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288527478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:17,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:17,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:40:17,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838418969] [2021-12-06 18:40:17,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:17,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:40:17,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:17,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:40:17,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:40:17,912 INFO L87 Difference]: Start difference. First operand 5598 states and 7845 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 18:40:18,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:18,684 INFO L93 Difference]: Finished difference Result 8540 states and 11939 transitions. [2021-12-06 18:40:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:40:18,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 142 [2021-12-06 18:40:18,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:18,698 INFO L225 Difference]: With dead ends: 8540 [2021-12-06 18:40:18,698 INFO L226 Difference]: Without dead ends: 2963 [2021-12-06 18:40:18,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:40:18,710 INFO L933 BasicCegarLoop]: 941 mSDtfsCounter, 24 mSDsluCounter, 2813 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3754 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:18,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 3754 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:40:18,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2021-12-06 18:40:18,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 2875. [2021-12-06 18:40:18,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2147 states have (on average 1.351187703772706) internal successors, (2901), 2181 states have internal predecessors, (2901), 540 states have call successors, (540), 188 states have call predecessors, (540), 187 states have return successors, (571), 521 states have call predecessors, (571), 539 states have call successors, (571) [2021-12-06 18:40:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4012 transitions. [2021-12-06 18:40:18,791 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4012 transitions. Word has length 142 [2021-12-06 18:40:18,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:18,791 INFO L470 AbstractCegarLoop]: Abstraction has 2875 states and 4012 transitions. [2021-12-06 18:40:18,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 18:40:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4012 transitions. [2021-12-06 18:40:18,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-06 18:40:18,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:18,798 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:18,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 18:40:18,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:18,998 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:18,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1046565723, now seen corresponding path program 1 times [2021-12-06 18:40:19,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:19,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976211852] [2021-12-06 18:40:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:19,001 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:19,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:19,002 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:19,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 18:40:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:20,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 18:40:20,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-06 18:40:20,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:20,834 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:20,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976211852] [2021-12-06 18:40:20,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976211852] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:20,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:20,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:40:20,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131138795] [2021-12-06 18:40:20,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:20,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:40:20,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:20,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:40:20,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:40:20,836 INFO L87 Difference]: Start difference. First operand 2875 states and 4012 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-06 18:40:22,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:22,279 INFO L93 Difference]: Finished difference Result 5709 states and 7974 transitions. [2021-12-06 18:40:22,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:40:22,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 148 [2021-12-06 18:40:22,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:22,296 INFO L225 Difference]: With dead ends: 5709 [2021-12-06 18:40:22,296 INFO L226 Difference]: Without dead ends: 2880 [2021-12-06 18:40:22,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:40:22,302 INFO L933 BasicCegarLoop]: 945 mSDtfsCounter, 419 mSDsluCounter, 3272 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 4217 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:22,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 4217 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 18:40:22,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2021-12-06 18:40:22,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2875. [2021-12-06 18:40:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2147 states have (on average 1.3502561714019563) internal successors, (2899), 2181 states have internal predecessors, (2899), 540 states have call successors, (540), 188 states have call predecessors, (540), 187 states have return successors, (571), 521 states have call predecessors, (571), 539 states have call successors, (571) [2021-12-06 18:40:22,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4010 transitions. [2021-12-06 18:40:22,380 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4010 transitions. Word has length 148 [2021-12-06 18:40:22,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:22,381 INFO L470 AbstractCegarLoop]: Abstraction has 2875 states and 4010 transitions. [2021-12-06 18:40:22,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-06 18:40:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4010 transitions. [2021-12-06 18:40:22,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-06 18:40:22,387 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:22,387 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:22,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 18:40:22,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:22,588 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:22,588 INFO L85 PathProgramCache]: Analyzing trace with hash 829917095, now seen corresponding path program 1 times [2021-12-06 18:40:22,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:22,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980716261] [2021-12-06 18:40:22,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:22,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:22,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:22,590 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:22,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 18:40:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:23,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 18:40:23,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:24,615 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-06 18:40:24,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:24,615 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:24,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980716261] [2021-12-06 18:40:24,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980716261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:24,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:24,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:40:24,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602342196] [2021-12-06 18:40:24,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:24,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:40:24,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:24,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:40:24,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:40:24,617 INFO L87 Difference]: Start difference. First operand 2875 states and 4010 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 18:40:24,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:24,841 INFO L93 Difference]: Finished difference Result 5736 states and 8025 transitions. [2021-12-06 18:40:24,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:40:24,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 148 [2021-12-06 18:40:24,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:24,855 INFO L225 Difference]: With dead ends: 5736 [2021-12-06 18:40:24,856 INFO L226 Difference]: Without dead ends: 2907 [2021-12-06 18:40:24,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:40:24,861 INFO L933 BasicCegarLoop]: 938 mSDtfsCounter, 0 mSDsluCounter, 4685 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5623 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:24,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5623 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:40:24,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-12-06 18:40:24,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2903. [2021-12-06 18:40:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2903 states, 2167 states have (on average 1.3470235348407937) internal successors, (2919), 2201 states have internal predecessors, (2919), 540 states have call successors, (540), 188 states have call predecessors, (540), 195 states have return successors, (601), 529 states have call predecessors, (601), 539 states have call successors, (601) [2021-12-06 18:40:24,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2903 states to 2903 states and 4060 transitions. [2021-12-06 18:40:24,926 INFO L78 Accepts]: Start accepts. Automaton has 2903 states and 4060 transitions. Word has length 148 [2021-12-06 18:40:24,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:24,926 INFO L470 AbstractCegarLoop]: Abstraction has 2903 states and 4060 transitions. [2021-12-06 18:40:24,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 18:40:24,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2903 states and 4060 transitions. [2021-12-06 18:40:24,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-06 18:40:24,931 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:24,932 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:24,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-06 18:40:25,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:25,134 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:25,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:25,135 INFO L85 PathProgramCache]: Analyzing trace with hash 198615179, now seen corresponding path program 1 times [2021-12-06 18:40:25,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:25,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897243051] [2021-12-06 18:40:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:25,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:25,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:25,142 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:25,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 18:40:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:26,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 18:40:26,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:27,271 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-06 18:40:27,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:27,272 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:27,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897243051] [2021-12-06 18:40:27,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897243051] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:27,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:27,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:40:27,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481404400] [2021-12-06 18:40:27,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:27,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:40:27,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:27,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:40:27,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:40:27,274 INFO L87 Difference]: Start difference. First operand 2903 states and 4060 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-06 18:40:27,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:27,417 INFO L93 Difference]: Finished difference Result 5802 states and 8215 transitions. [2021-12-06 18:40:27,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:40:27,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) Word has length 154 [2021-12-06 18:40:27,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:27,428 INFO L225 Difference]: With dead ends: 5802 [2021-12-06 18:40:27,428 INFO L226 Difference]: Without dead ends: 2945 [2021-12-06 18:40:27,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:40:27,435 INFO L933 BasicCegarLoop]: 937 mSDtfsCounter, 2 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3743 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:27,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 3743 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:40:27,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-12-06 18:40:27,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2933. [2021-12-06 18:40:27,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2933 states, 2188 states have (on average 1.3436928702010968) internal successors, (2940), 2225 states have internal predecessors, (2940), 540 states have call successors, (540), 188 states have call predecessors, (540), 204 states have return successors, (614), 535 states have call predecessors, (614), 539 states have call successors, (614) [2021-12-06 18:40:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2933 states to 2933 states and 4094 transitions. [2021-12-06 18:40:27,498 INFO L78 Accepts]: Start accepts. Automaton has 2933 states and 4094 transitions. Word has length 154 [2021-12-06 18:40:27,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:27,499 INFO L470 AbstractCegarLoop]: Abstraction has 2933 states and 4094 transitions. [2021-12-06 18:40:27,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-06 18:40:27,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2933 states and 4094 transitions. [2021-12-06 18:40:27,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 18:40:27,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:27,504 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:27,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 18:40:27,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:27,705 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:27,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:27,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1478023259, now seen corresponding path program 1 times [2021-12-06 18:40:27,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:27,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786514708] [2021-12-06 18:40:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:27,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:27,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:27,707 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:27,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 18:40:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:28,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 33 conjunts are in the unsatisfiable core [2021-12-06 18:40:28,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:30,590 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-12-06 18:40:30,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:30,590 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:30,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786514708] [2021-12-06 18:40:30,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786514708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:30,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:30,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:40:30,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059109739] [2021-12-06 18:40:30,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:30,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:40:30,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:30,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:40:30,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:40:30,592 INFO L87 Difference]: Start difference. First operand 2933 states and 4094 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 18:40:31,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:31,667 INFO L93 Difference]: Finished difference Result 5858 states and 8257 transitions. [2021-12-06 18:40:31,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:40:31,668 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2021-12-06 18:40:31,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:31,675 INFO L225 Difference]: With dead ends: 5858 [2021-12-06 18:40:31,675 INFO L226 Difference]: Without dead ends: 2971 [2021-12-06 18:40:31,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-06 18:40:31,681 INFO L933 BasicCegarLoop]: 947 mSDtfsCounter, 12 mSDsluCounter, 9435 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10382 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:31,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 10382 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:40:31,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-12-06 18:40:31,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2960. [2021-12-06 18:40:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2960 states, 2208 states have (on average 1.3378623188405796) internal successors, (2954), 2243 states have internal predecessors, (2954), 540 states have call successors, (540), 188 states have call predecessors, (540), 211 states have return successors, (628), 544 states have call predecessors, (628), 539 states have call successors, (628) [2021-12-06 18:40:31,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2960 states to 2960 states and 4122 transitions. [2021-12-06 18:40:31,743 INFO L78 Accepts]: Start accepts. Automaton has 2960 states and 4122 transitions. Word has length 161 [2021-12-06 18:40:31,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:31,744 INFO L470 AbstractCegarLoop]: Abstraction has 2960 states and 4122 transitions. [2021-12-06 18:40:31,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 18:40:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2960 states and 4122 transitions. [2021-12-06 18:40:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-06 18:40:31,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:31,749 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:31,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-12-06 18:40:31,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:31,950 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:31,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:31,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1188259002, now seen corresponding path program 1 times [2021-12-06 18:40:31,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:31,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795397681] [2021-12-06 18:40:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:31,956 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:31,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:31,958 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:31,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 18:40:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:33,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:40:33,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-06 18:40:34,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:34,182 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:34,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795397681] [2021-12-06 18:40:34,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795397681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:34,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:34,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:40:34,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832515552] [2021-12-06 18:40:34,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:34,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:40:34,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:34,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:40:34,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:40:34,184 INFO L87 Difference]: Start difference. First operand 2960 states and 4122 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-06 18:40:34,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:34,536 INFO L93 Difference]: Finished difference Result 6727 states and 9365 transitions. [2021-12-06 18:40:34,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:40:34,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 172 [2021-12-06 18:40:34,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:34,545 INFO L225 Difference]: With dead ends: 6727 [2021-12-06 18:40:34,545 INFO L226 Difference]: Without dead ends: 3813 [2021-12-06 18:40:34,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:40:34,550 INFO L933 BasicCegarLoop]: 1124 mSDtfsCounter, 650 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1849 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:34,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [650 Valid, 1849 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:40:34,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3813 states. [2021-12-06 18:40:34,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3813 to 3782. [2021-12-06 18:40:34,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 2844 states have (on average 1.339310829817159) internal successors, (3809), 2887 states have internal predecessors, (3809), 656 states have call successors, (656), 248 states have call predecessors, (656), 281 states have return successors, (774), 664 states have call predecessors, (774), 655 states have call successors, (774) [2021-12-06 18:40:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 5239 transitions. [2021-12-06 18:40:34,633 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 5239 transitions. Word has length 172 [2021-12-06 18:40:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:34,633 INFO L470 AbstractCegarLoop]: Abstraction has 3782 states and 5239 transitions. [2021-12-06 18:40:34,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-06 18:40:34,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 5239 transitions. [2021-12-06 18:40:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-06 18:40:34,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:34,638 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:34,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-12-06 18:40:34,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:34,839 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:34,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:34,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1891071574, now seen corresponding path program 1 times [2021-12-06 18:40:34,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:34,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280372561] [2021-12-06 18:40:34,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:34,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:34,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:34,841 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:34,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 18:40:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:36,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 1708 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-06 18:40:36,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:40:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-06 18:40:37,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:40:37,552 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:40:37,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280372561] [2021-12-06 18:40:37,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280372561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:37,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:37,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 18:40:37,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609061016] [2021-12-06 18:40:37,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:37,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:40:37,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:40:37,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:40:37,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:40:37,554 INFO L87 Difference]: Start difference. First operand 3782 states and 5239 transitions. Second operand has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 9 states have internal predecessors, (108), 2 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-06 18:40:38,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:40:38,900 INFO L93 Difference]: Finished difference Result 7545 states and 10542 transitions. [2021-12-06 18:40:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 18:40:38,901 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 9 states have internal predecessors, (108), 2 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 1 states have call successors, (19) Word has length 169 [2021-12-06 18:40:38,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:40:38,910 INFO L225 Difference]: With dead ends: 7545 [2021-12-06 18:40:38,910 INFO L226 Difference]: Without dead ends: 3809 [2021-12-06 18:40:38,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-12-06 18:40:38,916 INFO L933 BasicCegarLoop]: 944 mSDtfsCounter, 11 mSDsluCounter, 10350 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 11294 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 18:40:38,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 11294 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 18:40:38,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3809 states. [2021-12-06 18:40:38,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3809 to 3803. [2021-12-06 18:40:38,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 2863 states have (on average 1.3370590289905693) internal successors, (3828), 2899 states have internal predecessors, (3828), 656 states have call successors, (656), 248 states have call predecessors, (656), 283 states have return successors, (777), 673 states have call predecessors, (777), 655 states have call successors, (777) [2021-12-06 18:40:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 5261 transitions. [2021-12-06 18:40:39,006 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 5261 transitions. Word has length 169 [2021-12-06 18:40:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:40:39,007 INFO L470 AbstractCegarLoop]: Abstraction has 3803 states and 5261 transitions. [2021-12-06 18:40:39,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 9 states have internal predecessors, (108), 2 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-06 18:40:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 5261 transitions. [2021-12-06 18:40:39,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-06 18:40:39,012 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:39,012 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:39,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-06 18:40:39,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:40:39,213 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:39,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:39,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1401601602, now seen corresponding path program 1 times [2021-12-06 18:40:39,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:40:39,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575641342] [2021-12-06 18:40:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:39,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:40:39,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:40:39,215 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:40:39,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618477c2-c425-4fec-a90e-833c3f8b90da/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process