./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 9f2fac8642c25f1335350a2814ff7cf3c4ea0fb7f4feaed63baec564397e8f24 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:06:49,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:06:49,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:06:49,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:06:49,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:06:49,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:06:49,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:06:49,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:06:49,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:06:49,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:06:49,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:06:49,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:06:49,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:06:49,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:06:49,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:06:49,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:06:49,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:06:49,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:06:49,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:06:49,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:06:49,905 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:06:49,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:06:49,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:06:49,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:06:49,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:06:49,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:06:49,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:06:49,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:06:49,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:06:49,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:06:49,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:06:49,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:06:49,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:06:49,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:06:49,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:06:49,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:06:49,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:06:49,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:06:49,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:06:49,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:06:49,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:06:49,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:06:49,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:06:49,939 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:06:49,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:06:49,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:06:49,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:06:49,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:06:49,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:06:49,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:06:49,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:06:49,942 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:06:49,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:06:49,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:06:49,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:06:49,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:06:49,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:06:49,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:06:49,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:06:49,943 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:06:49,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:06:49,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:06:49,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:06:49,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:06:49,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:06:49,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:06:49,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:06:49,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:06:49,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:06:49,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:06:49,946 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:06:49,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:06:49,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:06:49,946 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f2fac8642c25f1335350a2814ff7cf3c4ea0fb7f4feaed63baec564397e8f24 [2022-07-14 00:06:50,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:06:50,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:06:50,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:06:50,195 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:06:50,195 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:06:50,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-07-14 00:06:50,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94318ecb5/e87893d4abc84112973551ebe4e04d59/FLAGdab3c0ea8 [2022-07-14 00:06:50,842 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:06:50,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-07-14 00:06:50,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94318ecb5/e87893d4abc84112973551ebe4e04d59/FLAGdab3c0ea8 [2022-07-14 00:06:50,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94318ecb5/e87893d4abc84112973551ebe4e04d59 [2022-07-14 00:06:51,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:06:51,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:06:51,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:06:51,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:06:51,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:06:51,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:06:51" (1/1) ... [2022-07-14 00:06:51,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a3ea58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:51, skipping insertion in model container [2022-07-14 00:06:51,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:06:51" (1/1) ... [2022-07-14 00:06:51,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:06:51,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:06:51,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-07-14 00:06:52,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:06:52,051 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:06:52,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-07-14 00:06:52,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:06:52,335 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:06:52,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52 WrapperNode [2022-07-14 00:06:52,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:06:52,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:06:52,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:06:52,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:06:52,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,485 INFO L137 Inliner]: procedures = 163, calls = 1186, calls flagged for inlining = 76, calls inlined = 76, statements flattened = 3081 [2022-07-14 00:06:52,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:06:52,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:06:52,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:06:52,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:06:52,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:06:52,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:06:52,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:06:52,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:06:52,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (1/1) ... [2022-07-14 00:06:52,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:06:52,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:06:52,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:06:52,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:06:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-14 00:06:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-14 00:06:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unregister_dev [2022-07-14 00:06:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unregister_dev [2022-07-14 00:06:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2022-07-14 00:06:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2022-07-14 00:06:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-14 00:06:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-14 00:06:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:06:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-07-14 00:06:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-07-14 00:06:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:06:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:06:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-14 00:06:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-14 00:06:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:06:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:06:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:06:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-14 00:06:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-14 00:06:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-14 00:06:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-14 00:06:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-14 00:06:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-14 00:06:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:06:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:06:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2022-07-14 00:06:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2022-07-14 00:06:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 00:06:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 00:06:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:06:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:06:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-14 00:06:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-14 00:06:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-14 00:06:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-14 00:06:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-07-14 00:06:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-07-14 00:06:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2022-07-14 00:06:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2022-07-14 00:06:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:06:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:06:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:06:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:06:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:06:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_rx_complete [2022-07-14 00:06:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_rx_complete [2022-07-14 00:06:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-07-14 00:06:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-07-14 00:06:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-14 00:06:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-14 00:06:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:06:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:06:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 00:06:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 00:06:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:06:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:06:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:06:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:06:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:06:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-14 00:06:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-14 00:06:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-14 00:06:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-14 00:06:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:06:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-14 00:06:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-14 00:06:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 00:06:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 00:06:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:06:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:06:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:06:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:06:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2022-07-14 00:06:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2022-07-14 00:06:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2022-07-14 00:06:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2022-07-14 00:06:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:06:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-14 00:06:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-14 00:06:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-07-14 00:06:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-07-14 00:06:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:06:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:06:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_10 [2022-07-14 00:06:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_10 [2022-07-14 00:06:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:06:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:06:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-14 00:06:52,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-14 00:06:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:06:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2022-07-14 00:06:52,713 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2022-07-14 00:06:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-14 00:06:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-14 00:06:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-14 00:06:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-14 00:06:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:06:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-07-14 00:06:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:06:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:06:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:06:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:06:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-07-14 00:06:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-07-14 00:06:53,197 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:06:53,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:06:53,495 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:06:54,142 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-14 00:06:57,231 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:06:57,249 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:06:57,249 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:06:57,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:06:57 BoogieIcfgContainer [2022-07-14 00:06:57,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:06:57,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:06:57,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:06:57,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:06:57,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:06:51" (1/3) ... [2022-07-14 00:06:57,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edde011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:06:57, skipping insertion in model container [2022-07-14 00:06:57,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:06:52" (2/3) ... [2022-07-14 00:06:57,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edde011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:06:57, skipping insertion in model container [2022-07-14 00:06:57,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:06:57" (3/3) ... [2022-07-14 00:06:57,261 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-07-14 00:06:57,271 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:06:57,272 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:06:57,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:06:57,339 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2b799f04, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2f700a40 [2022-07-14 00:06:57,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:06:57,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 855 states, 631 states have (on average 1.3851030110935023) internal successors, (874), 657 states have internal predecessors, (874), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) [2022-07-14 00:06:57,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 00:06:57,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:06:57,354 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:06:57,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:06:57,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:06:57,358 INFO L85 PathProgramCache]: Analyzing trace with hash -967497407, now seen corresponding path program 1 times [2022-07-14 00:06:57,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:06:57,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993408267] [2022-07-14 00:06:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:06:57,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:06:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:57,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:06:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:57,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:06:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:57,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:06:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:06:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:57,830 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 00:06:57,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:06:57,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993408267] [2022-07-14 00:06:57,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993408267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:06:57,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:06:57,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:06:57,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237028546] [2022-07-14 00:06:57,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:06:57,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:06:57,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:06:57,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:06:57,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:06:57,866 INFO L87 Difference]: Start difference. First operand has 855 states, 631 states have (on average 1.3851030110935023) internal successors, (874), 657 states have internal predecessors, (874), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-07-14 00:07:00,215 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 [] [2022-07-14 00:07:02,245 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 [] [2022-07-14 00:07:05,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:07:05,698 INFO L93 Difference]: Finished difference Result 2754 states and 4123 transitions. [2022-07-14 00:07:05,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:07:05,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 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 44 [2022-07-14 00:07:05,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:07:05,735 INFO L225 Difference]: With dead ends: 2754 [2022-07-14 00:07:05,736 INFO L226 Difference]: Without dead ends: 1880 [2022-07-14 00:07:05,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:07:05,747 INFO L413 NwaCegarLoop]: 1335 mSDtfsCounter, 1892 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 1010 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1010 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:07:05,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 3390 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1010 Valid, 1566 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-07-14 00:07:05,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2022-07-14 00:07:05,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1612. [2022-07-14 00:07:05,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1197 states have (on average 1.3751044277360067) internal successors, (1646), 1229 states have internal predecessors, (1646), 332 states have call successors, (332), 83 states have call predecessors, (332), 82 states have return successors, (327), 311 states have call predecessors, (327), 327 states have call successors, (327) [2022-07-14 00:07:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2305 transitions. [2022-07-14 00:07:05,900 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2305 transitions. Word has length 44 [2022-07-14 00:07:05,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:07:05,901 INFO L495 AbstractCegarLoop]: Abstraction has 1612 states and 2305 transitions. [2022-07-14 00:07:05,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-07-14 00:07:05,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2305 transitions. [2022-07-14 00:07:05,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-14 00:07:05,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:07:05,909 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:07:05,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:07:05,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:07:05,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:07:05,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1415687837, now seen corresponding path program 1 times [2022-07-14 00:07:05,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:07:05,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268395128] [2022-07-14 00:07:05,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:07:05,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:07:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:07:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:07:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:07:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:07:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:06,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:07:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:06,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:07:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 00:07:06,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:07:06,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268395128] [2022-07-14 00:07:06,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268395128] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:07:06,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:07:06,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:07:06,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610918746] [2022-07-14 00:07:06,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:07:06,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:07:06,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:07:06,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:07:06,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:07:06,202 INFO L87 Difference]: Start difference. First operand 1612 states and 2305 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:08,365 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 [] [2022-07-14 00:07:10,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:07:13,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:07:15,334 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 [] [2022-07-14 00:07:17,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:07:17,750 INFO L93 Difference]: Finished difference Result 5349 states and 7945 transitions. [2022-07-14 00:07:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:07:17,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2022-07-14 00:07:17,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:07:17,798 INFO L225 Difference]: With dead ends: 5349 [2022-07-14 00:07:17,798 INFO L226 Difference]: Without dead ends: 3748 [2022-07-14 00:07:17,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:07:17,805 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 1948 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 1011 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1011 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:07:17,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2076 Valid, 3472 Invalid, 2588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1011 Valid, 1573 Invalid, 4 Unknown, 0 Unchecked, 11.3s Time] [2022-07-14 00:07:17,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2022-07-14 00:07:17,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3286. [2022-07-14 00:07:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 2434 states have (on average 1.3697617091207888) internal successors, (3334), 2504 states have internal predecessors, (3334), 671 states have call successors, (671), 165 states have call predecessors, (671), 180 states have return successors, (762), 642 states have call predecessors, (762), 666 states have call successors, (762) [2022-07-14 00:07:17,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4767 transitions. [2022-07-14 00:07:17,929 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4767 transitions. Word has length 61 [2022-07-14 00:07:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:07:17,929 INFO L495 AbstractCegarLoop]: Abstraction has 3286 states and 4767 transitions. [2022-07-14 00:07:17,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4767 transitions. [2022-07-14 00:07:17,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-14 00:07:17,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:07:17,931 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:07:17,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:07:17,932 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:07:17,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:07:17,932 INFO L85 PathProgramCache]: Analyzing trace with hash -937016713, now seen corresponding path program 1 times [2022-07-14 00:07:17,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:07:17,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289725636] [2022-07-14 00:07:17,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:07:17,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:07:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:18,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:07:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:07:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:07:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:07:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:18,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:07:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:18,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:07:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 00:07:18,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:07:18,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289725636] [2022-07-14 00:07:18,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289725636] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:07:18,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:07:18,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:07:18,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043002203] [2022-07-14 00:07:18,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:07:18,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:07:18,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:07:18,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:07:18,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:07:18,220 INFO L87 Difference]: Start difference. First operand 3286 states and 4767 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:20,370 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 [] [2022-07-14 00:07:22,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:07:26,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:07:28,045 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 [] [2022-07-14 00:07:29,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:07:29,696 INFO L93 Difference]: Finished difference Result 10731 states and 16197 transitions. [2022-07-14 00:07:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:07:29,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 62 [2022-07-14 00:07:29,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:07:29,735 INFO L225 Difference]: With dead ends: 10731 [2022-07-14 00:07:29,735 INFO L226 Difference]: Without dead ends: 7456 [2022-07-14 00:07:29,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:07:29,749 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 2006 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 1033 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1033 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:07:29,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2145 Valid, 3314 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1033 Valid, 1530 Invalid, 4 Unknown, 0 Unchecked, 11.2s Time] [2022-07-14 00:07:29,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7456 states. [2022-07-14 00:07:29,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7456 to 6627. [2022-07-14 00:07:29,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6627 states, 4901 states have (on average 1.3650275453988983) internal successors, (6690), 5047 states have internal predecessors, (6690), 1349 states have call successors, (1349), 329 states have call predecessors, (1349), 376 states have return successors, (1702), 1304 states have call predecessors, (1702), 1344 states have call successors, (1702) [2022-07-14 00:07:29,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6627 states to 6627 states and 9741 transitions. [2022-07-14 00:07:29,998 INFO L78 Accepts]: Start accepts. Automaton has 6627 states and 9741 transitions. Word has length 62 [2022-07-14 00:07:29,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:07:29,999 INFO L495 AbstractCegarLoop]: Abstraction has 6627 states and 9741 transitions. [2022-07-14 00:07:29,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:30,000 INFO L276 IsEmpty]: Start isEmpty. Operand 6627 states and 9741 transitions. [2022-07-14 00:07:30,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-14 00:07:30,001 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:07:30,001 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:07:30,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:07:30,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:07:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:07:30,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1016891110, now seen corresponding path program 1 times [2022-07-14 00:07:30,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:07:30,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524468418] [2022-07-14 00:07:30,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:07:30,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:07:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:30,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:07:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:30,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:07:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:30,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:07:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:30,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:07:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:30,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:07:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:07:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 00:07:30,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:07:30,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524468418] [2022-07-14 00:07:30,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524468418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:07:30,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:07:30,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:07:30,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539594488] [2022-07-14 00:07:30,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:07:30,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:07:30,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:07:30,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:07:30,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:07:30,239 INFO L87 Difference]: Start difference. First operand 6627 states and 9741 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:32,391 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 [] [2022-07-14 00:07:34,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:07:38,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:07:40,038 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 [] [2022-07-14 00:07:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:07:41,991 INFO L93 Difference]: Finished difference Result 7454 states and 11168 transitions. [2022-07-14 00:07:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:07:41,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2022-07-14 00:07:41,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:07:42,037 INFO L225 Difference]: With dead ends: 7454 [2022-07-14 00:07:42,037 INFO L226 Difference]: Without dead ends: 7451 [2022-07-14 00:07:42,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:07:42,044 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 2003 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 1026 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1026 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:07:42,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 3318 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1026 Valid, 1513 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2022-07-14 00:07:42,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7451 states. [2022-07-14 00:07:42,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7451 to 6628. [2022-07-14 00:07:42,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6628 states, 4902 states have (on average 1.364953080375357) internal successors, (6691), 5048 states have internal predecessors, (6691), 1349 states have call successors, (1349), 329 states have call predecessors, (1349), 376 states have return successors, (1702), 1304 states have call predecessors, (1702), 1344 states have call successors, (1702) [2022-07-14 00:07:42,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6628 states to 6628 states and 9742 transitions. [2022-07-14 00:07:42,366 INFO L78 Accepts]: Start accepts. Automaton has 6628 states and 9742 transitions. Word has length 63 [2022-07-14 00:07:42,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:07:42,368 INFO L495 AbstractCegarLoop]: Abstraction has 6628 states and 9742 transitions. [2022-07-14 00:07:42,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:42,369 INFO L276 IsEmpty]: Start isEmpty. Operand 6628 states and 9742 transitions. [2022-07-14 00:07:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-14 00:07:42,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:07:42,372 INFO L195 NwaCegarLoop]: 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, 1] [2022-07-14 00:07:42,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:07:42,373 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:07:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:07:42,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1458496346, now seen corresponding path program 1 times [2022-07-14 00:07:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:07:42,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260812491] [2022-07-14 00:07:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:07:42,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:07:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:07:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:07:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:07:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:07:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:07:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:07:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 00:07:42,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:07:42,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260812491] [2022-07-14 00:07:42,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260812491] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:07:42,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:07:42,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:07:42,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922528195] [2022-07-14 00:07:42,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:07:42,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:07:42,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:07:42,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:07:42,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:07:42,689 INFO L87 Difference]: Start difference. First operand 6628 states and 9742 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:44,877 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 [] [2022-07-14 00:07:46,910 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 [] [2022-07-14 00:07:48,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:07:48,862 INFO L93 Difference]: Finished difference Result 7450 states and 11164 transitions. [2022-07-14 00:07:48,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:07:48,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 64 [2022-07-14 00:07:48,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:07:48,893 INFO L225 Difference]: With dead ends: 7450 [2022-07-14 00:07:48,893 INFO L226 Difference]: Without dead ends: 7447 [2022-07-14 00:07:48,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:07:48,908 INFO L413 NwaCegarLoop]: 1123 mSDtfsCounter, 1541 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 574 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:07:48,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 2213 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 792 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-07-14 00:07:48,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7447 states. [2022-07-14 00:07:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7447 to 6627. [2022-07-14 00:07:49,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6627 states, 4902 states have (on average 1.364749082007344) internal successors, (6690), 5047 states have internal predecessors, (6690), 1348 states have call successors, (1348), 329 states have call predecessors, (1348), 376 states have return successors, (1702), 1304 states have call predecessors, (1702), 1344 states have call successors, (1702) [2022-07-14 00:07:49,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6627 states to 6627 states and 9740 transitions. [2022-07-14 00:07:49,119 INFO L78 Accepts]: Start accepts. Automaton has 6627 states and 9740 transitions. Word has length 64 [2022-07-14 00:07:49,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:07:49,120 INFO L495 AbstractCegarLoop]: Abstraction has 6627 states and 9740 transitions. [2022-07-14 00:07:49,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:49,120 INFO L276 IsEmpty]: Start isEmpty. Operand 6627 states and 9740 transitions. [2022-07-14 00:07:49,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-14 00:07:49,122 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:07:49,122 INFO L195 NwaCegarLoop]: 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, 1, 1] [2022-07-14 00:07:49,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:07:49,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:07:49,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:07:49,123 INFO L85 PathProgramCache]: Analyzing trace with hash -2031605655, now seen corresponding path program 1 times [2022-07-14 00:07:49,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:07:49,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594766811] [2022-07-14 00:07:49,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:07:49,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:07:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:07:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:49,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:07:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:49,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:07:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:07:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:07:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:49,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:07:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 00:07:49,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:07:49,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594766811] [2022-07-14 00:07:49,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594766811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:07:49,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:07:49,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:07:49,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766252946] [2022-07-14 00:07:49,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:07:49,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:07:49,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:07:49,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:07:49,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:07:49,321 INFO L87 Difference]: Start difference. First operand 6627 states and 9740 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:51,470 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 [] [2022-07-14 00:07:53,497 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 [] [2022-07-14 00:07:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:07:55,526 INFO L93 Difference]: Finished difference Result 7449 states and 11162 transitions. [2022-07-14 00:07:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:07:55,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 65 [2022-07-14 00:07:55,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:07:55,559 INFO L225 Difference]: With dead ends: 7449 [2022-07-14 00:07:55,559 INFO L226 Difference]: Without dead ends: 7417 [2022-07-14 00:07:55,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:07:55,568 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 1537 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 572 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:07:55,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1677 Valid, 2215 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 794 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-07-14 00:07:55,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7417 states. [2022-07-14 00:07:55,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7417 to 6597. [2022-07-14 00:07:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6597 states, 4875 states have (on average 1.3645128205128205) internal successors, (6652), 5019 states have internal predecessors, (6652), 1345 states have call successors, (1345), 329 states have call predecessors, (1345), 376 states have return successors, (1696), 1302 states have call predecessors, (1696), 1342 states have call successors, (1696) [2022-07-14 00:07:55,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 9693 transitions. [2022-07-14 00:07:55,780 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 9693 transitions. Word has length 65 [2022-07-14 00:07:55,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:07:55,782 INFO L495 AbstractCegarLoop]: Abstraction has 6597 states and 9693 transitions. [2022-07-14 00:07:55,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:07:55,782 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 9693 transitions. [2022-07-14 00:07:55,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-14 00:07:55,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:07:55,786 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-07-14 00:07:55,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 00:07:55,786 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:07:55,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:07:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1428627121, now seen corresponding path program 1 times [2022-07-14 00:07:55,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:07:55,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858742137] [2022-07-14 00:07:55,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:07:55,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:07:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:07:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:07:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:07:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:07:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-14 00:07:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:07:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:07:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 00:07:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-14 00:07:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:07:55,951 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 00:07:55,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:07:55,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858742137] [2022-07-14 00:07:55,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858742137] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:07:55,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:07:55,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:07:55,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895191230] [2022-07-14 00:07:55,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:07:55,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:07:55,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:07:55,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:07:55,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:07:55,954 INFO L87 Difference]: Start difference. First operand 6597 states and 9693 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:07:58,098 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 [] [2022-07-14 00:08:00,126 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 [] [2022-07-14 00:08:03,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:03,630 INFO L93 Difference]: Finished difference Result 20473 states and 30444 transitions. [2022-07-14 00:08:03,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 00:08:03,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2022-07-14 00:08:03,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:03,702 INFO L225 Difference]: With dead ends: 20473 [2022-07-14 00:08:03,703 INFO L226 Difference]: Without dead ends: 13887 [2022-07-14 00:08:03,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:08:03,741 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 2133 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 1593 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 3915 SdHoareTripleChecker+Invalid, 3303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1593 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:03,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2271 Valid, 3915 Invalid, 3303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1593 Valid, 1708 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-07-14 00:08:03,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13887 states. [2022-07-14 00:08:04,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13887 to 12437. [2022-07-14 00:08:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12437 states, 9104 states have (on average 1.3474297012302285) internal successors, (12267), 9423 states have internal predecessors, (12267), 2516 states have call successors, (2516), 623 states have call predecessors, (2516), 816 states have return successors, (3667), 2490 states have call predecessors, (3667), 2513 states have call successors, (3667) [2022-07-14 00:08:04,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12437 states to 12437 states and 18450 transitions. [2022-07-14 00:08:04,201 INFO L78 Accepts]: Start accepts. Automaton has 12437 states and 18450 transitions. Word has length 98 [2022-07-14 00:08:04,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:04,202 INFO L495 AbstractCegarLoop]: Abstraction has 12437 states and 18450 transitions. [2022-07-14 00:08:04,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:08:04,202 INFO L276 IsEmpty]: Start isEmpty. Operand 12437 states and 18450 transitions. [2022-07-14 00:08:04,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-14 00:08:04,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:04,208 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-07-14 00:08:04,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 00:08:04,209 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:04,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:04,209 INFO L85 PathProgramCache]: Analyzing trace with hash -173781947, now seen corresponding path program 1 times [2022-07-14 00:08:04,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:08:04,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265158801] [2022-07-14 00:08:04,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:04,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:08:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:08:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:08:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:08:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:08:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:08:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:08:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:08:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:08:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:08:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-07-14 00:08:04,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:08:04,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265158801] [2022-07-14 00:08:04,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265158801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:04,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:04,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 00:08:04,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966655938] [2022-07-14 00:08:04,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:04,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:08:04,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:08:04,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:08:04,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:08:04,565 INFO L87 Difference]: Start difference. First operand 12437 states and 18450 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 00:08:06,781 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 [] [2022-07-14 00:08:08,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:10,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:14,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:14,523 INFO L93 Difference]: Finished difference Result 26259 states and 39141 transitions. [2022-07-14 00:08:14,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:08:14,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 124 [2022-07-14 00:08:14,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:14,584 INFO L225 Difference]: With dead ends: 26259 [2022-07-14 00:08:14,584 INFO L226 Difference]: Without dead ends: 13844 [2022-07-14 00:08:14,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:08:14,630 INFO L413 NwaCegarLoop]: 1150 mSDtfsCounter, 679 mSDsluCounter, 5124 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 696 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 6274 SdHoareTripleChecker+Invalid, 3294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:14,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 6274 Invalid, 3294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2595 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2022-07-14 00:08:14,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13844 states. [2022-07-14 00:08:15,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13844 to 12457. [2022-07-14 00:08:15,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12457 states, 9120 states have (on average 1.3468201754385964) internal successors, (12283), 9435 states have internal predecessors, (12283), 2520 states have call successors, (2520), 623 states have call predecessors, (2520), 816 states have return successors, (3671), 2498 states have call predecessors, (3671), 2517 states have call successors, (3671) [2022-07-14 00:08:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12457 states to 12457 states and 18474 transitions. [2022-07-14 00:08:15,129 INFO L78 Accepts]: Start accepts. Automaton has 12457 states and 18474 transitions. Word has length 124 [2022-07-14 00:08:15,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:15,129 INFO L495 AbstractCegarLoop]: Abstraction has 12457 states and 18474 transitions. [2022-07-14 00:08:15,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 00:08:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 12457 states and 18474 transitions. [2022-07-14 00:08:15,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-14 00:08:15,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:15,137 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-07-14 00:08:15,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 00:08:15,137 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:15,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:15,137 INFO L85 PathProgramCache]: Analyzing trace with hash 582365067, now seen corresponding path program 1 times [2022-07-14 00:08:15,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:08:15,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736688464] [2022-07-14 00:08:15,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:15,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:08:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:08:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:08:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:08:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:08:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:08:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:08:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:08:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:08:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:08:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-07-14 00:08:15,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:08:15,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736688464] [2022-07-14 00:08:15,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736688464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:15,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:15,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:08:15,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709603182] [2022-07-14 00:08:15,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:15,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:08:15,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:08:15,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:08:15,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:08:15,485 INFO L87 Difference]: Start difference. First operand 12457 states and 18474 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:08:17,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:19,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:22,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:22,533 INFO L93 Difference]: Finished difference Result 26280 states and 39126 transitions. [2022-07-14 00:08:22,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 00:08:22,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 130 [2022-07-14 00:08:22,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:22,598 INFO L225 Difference]: With dead ends: 26280 [2022-07-14 00:08:22,598 INFO L226 Difference]: Without dead ends: 13826 [2022-07-14 00:08:22,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:08:22,633 INFO L413 NwaCegarLoop]: 1131 mSDtfsCounter, 914 mSDsluCounter, 2987 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 956 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 4118 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 956 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:22,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 4118 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [956 Valid, 1555 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-07-14 00:08:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13826 states. [2022-07-14 00:08:23,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13826 to 12466. [2022-07-14 00:08:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12466 states, 9129 states have (on average 1.346478256106912) internal successors, (12292), 9444 states have internal predecessors, (12292), 2520 states have call successors, (2520), 623 states have call predecessors, (2520), 816 states have return successors, (3671), 2498 states have call predecessors, (3671), 2517 states have call successors, (3671) [2022-07-14 00:08:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12466 states to 12466 states and 18483 transitions. [2022-07-14 00:08:23,089 INFO L78 Accepts]: Start accepts. Automaton has 12466 states and 18483 transitions. Word has length 130 [2022-07-14 00:08:23,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:23,090 INFO L495 AbstractCegarLoop]: Abstraction has 12466 states and 18483 transitions. [2022-07-14 00:08:23,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:08:23,090 INFO L276 IsEmpty]: Start isEmpty. Operand 12466 states and 18483 transitions. [2022-07-14 00:08:23,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-14 00:08:23,097 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:23,097 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-07-14 00:08:23,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 00:08:23,098 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:23,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:23,098 INFO L85 PathProgramCache]: Analyzing trace with hash -413463987, now seen corresponding path program 1 times [2022-07-14 00:08:23,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:08:23,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514815559] [2022-07-14 00:08:23,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:23,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:08:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:08:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:08:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:08:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:08:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:08:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:08:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:08:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 00:08:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:08:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-07-14 00:08:23,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:08:23,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514815559] [2022-07-14 00:08:23,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514815559] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:08:23,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068594093] [2022-07-14 00:08:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:23,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:08:23,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:08:23,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:08:23,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:08:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:24,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 2200 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-14 00:08:24,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-14 00:08:24,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:24,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068594093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:24,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:08:24,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-14 00:08:24,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189971077] [2022-07-14 00:08:24,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:24,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:08:24,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:08:24,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:08:24,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:08:24,262 INFO L87 Difference]: Start difference. First operand 12466 states and 18483 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:08:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:24,700 INFO L93 Difference]: Finished difference Result 20320 states and 30035 transitions. [2022-07-14 00:08:24,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:08:24,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 131 [2022-07-14 00:08:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:24,740 INFO L225 Difference]: With dead ends: 20320 [2022-07-14 00:08:24,741 INFO L226 Difference]: Without dead ends: 7867 [2022-07-14 00:08:24,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:08:24,778 INFO L413 NwaCegarLoop]: 1195 mSDtfsCounter, 38 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4771 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:24,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4771 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:08:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7867 states. [2022-07-14 00:08:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7867 to 7640. [2022-07-14 00:08:25,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7640 states, 5599 states have (on average 1.342025361671727) internal successors, (7514), 5793 states have internal predecessors, (7514), 1533 states have call successors, (1533), 397 states have call predecessors, (1533), 507 states have return successors, (2172), 1510 states have call predecessors, (2172), 1530 states have call successors, (2172) [2022-07-14 00:08:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7640 states to 7640 states and 11219 transitions. [2022-07-14 00:08:25,084 INFO L78 Accepts]: Start accepts. Automaton has 7640 states and 11219 transitions. Word has length 131 [2022-07-14 00:08:25,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:25,084 INFO L495 AbstractCegarLoop]: Abstraction has 7640 states and 11219 transitions. [2022-07-14 00:08:25,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:08:25,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7640 states and 11219 transitions. [2022-07-14 00:08:25,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-14 00:08:25,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:25,092 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-07-14 00:08:25,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 00:08:25,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 00:08:25,314 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:25,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1984420258, now seen corresponding path program 1 times [2022-07-14 00:08:25,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:08:25,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782206053] [2022-07-14 00:08:25,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:25,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:08:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:08:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:08:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:08:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:08:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-14 00:08:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:08:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 00:08:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:08:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:08:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-14 00:08:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 00:08:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-14 00:08:25,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:08:25,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782206053] [2022-07-14 00:08:25,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782206053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:25,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:25,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:08:25,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162099089] [2022-07-14 00:08:25,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:25,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:08:25,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:08:25,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:08:25,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:08:25,488 INFO L87 Difference]: Start difference. First operand 7640 states and 11219 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 00:08:27,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:29,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:35,338 INFO L93 Difference]: Finished difference Result 22089 states and 33842 transitions. [2022-07-14 00:08:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 00:08:35,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-07-14 00:08:35,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:35,397 INFO L225 Difference]: With dead ends: 22089 [2022-07-14 00:08:35,398 INFO L226 Difference]: Without dead ends: 13885 [2022-07-14 00:08:35,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:08:35,424 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 2469 mSDsluCounter, 3923 mSDsCounter, 0 mSdLazyCounter, 3072 mSolverCounterSat, 1772 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2621 SdHoareTripleChecker+Valid, 5535 SdHoareTripleChecker+Invalid, 4846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1772 IncrementalHoareTripleChecker+Valid, 3072 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:35,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2621 Valid, 5535 Invalid, 4846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1772 Valid, 3072 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2022-07-14 00:08:35,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13885 states. [2022-07-14 00:08:35,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13885 to 11472. [2022-07-14 00:08:35,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11472 states, 8339 states have (on average 1.337570452092577) internal successors, (11154), 8682 states have internal predecessors, (11154), 2250 states have call successors, (2250), 556 states have call predecessors, (2250), 882 states have return successors, (4291), 2306 states have call predecessors, (4291), 2247 states have call successors, (4291) [2022-07-14 00:08:35,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11472 states to 11472 states and 17695 transitions. [2022-07-14 00:08:35,915 INFO L78 Accepts]: Start accepts. Automaton has 11472 states and 17695 transitions. Word has length 135 [2022-07-14 00:08:35,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:35,916 INFO L495 AbstractCegarLoop]: Abstraction has 11472 states and 17695 transitions. [2022-07-14 00:08:35,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 00:08:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 11472 states and 17695 transitions. [2022-07-14 00:08:35,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-14 00:08:35,921 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:35,921 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-14 00:08:35,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 00:08:35,922 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:35,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:35,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2017702408, now seen corresponding path program 1 times [2022-07-14 00:08:35,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:08:35,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176188896] [2022-07-14 00:08:35,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:35,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:08:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:08:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:08:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:08:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:08:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:08:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-14 00:08:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:08:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:08:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:08:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:08:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:36,236 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-14 00:08:36,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:08:36,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176188896] [2022-07-14 00:08:36,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176188896] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:08:36,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130864629] [2022-07-14 00:08:36,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:36,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:08:36,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:08:36,238 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:08:36,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 00:08:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:37,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 2277 conjuncts, 35 conjunts are in the unsatisfiable core [2022-07-14 00:08:37,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-14 00:08:37,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:37,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130864629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:37,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:08:37,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-07-14 00:08:37,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965489574] [2022-07-14 00:08:37,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:37,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:08:37,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:08:37,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:08:37,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:08:37,215 INFO L87 Difference]: Start difference. First operand 11472 states and 17695 transitions. Second operand has 8 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-14 00:08:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:37,851 INFO L93 Difference]: Finished difference Result 22916 states and 35355 transitions. [2022-07-14 00:08:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 00:08:37,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 137 [2022-07-14 00:08:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:37,905 INFO L225 Difference]: With dead ends: 22916 [2022-07-14 00:08:37,906 INFO L226 Difference]: Without dead ends: 11486 [2022-07-14 00:08:37,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-07-14 00:08:37,948 INFO L413 NwaCegarLoop]: 1191 mSDtfsCounter, 435 mSDsluCounter, 6601 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 7792 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:37,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 7792 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:08:37,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11486 states. [2022-07-14 00:08:38,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11486 to 11472. [2022-07-14 00:08:38,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11472 states, 8339 states have (on average 1.337090778270776) internal successors, (11150), 8682 states have internal predecessors, (11150), 2250 states have call successors, (2250), 556 states have call predecessors, (2250), 882 states have return successors, (4291), 2306 states have call predecessors, (4291), 2247 states have call successors, (4291) [2022-07-14 00:08:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11472 states to 11472 states and 17691 transitions. [2022-07-14 00:08:38,433 INFO L78 Accepts]: Start accepts. Automaton has 11472 states and 17691 transitions. Word has length 137 [2022-07-14 00:08:38,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:38,434 INFO L495 AbstractCegarLoop]: Abstraction has 11472 states and 17691 transitions. [2022-07-14 00:08:38,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-14 00:08:38,434 INFO L276 IsEmpty]: Start isEmpty. Operand 11472 states and 17691 transitions. [2022-07-14 00:08:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-14 00:08:38,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:38,440 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-14 00:08:38,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:38,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-14 00:08:38,647 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:38,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:38,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1438231226, now seen corresponding path program 1 times [2022-07-14 00:08:38,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:08:38,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21066694] [2022-07-14 00:08:38,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:38,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:08:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:08:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:08:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:08:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:08:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:08:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-14 00:08:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:08:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:08:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:08:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:08:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:38,991 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-14 00:08:38,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:08:38,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21066694] [2022-07-14 00:08:38,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21066694] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:08:38,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827874971] [2022-07-14 00:08:38,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:38,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:08:38,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:08:39,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:08:39,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 00:08:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:39,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 2278 conjuncts, 37 conjunts are in the unsatisfiable core [2022-07-14 00:08:39,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:39,745 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-14 00:08:39,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:39,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827874971] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:39,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:08:39,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2022-07-14 00:08:39,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394154557] [2022-07-14 00:08:39,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:39,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:08:39,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:08:39,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:08:39,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:08:39,751 INFO L87 Difference]: Start difference. First operand 11472 states and 17691 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 00:08:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:40,304 INFO L93 Difference]: Finished difference Result 22902 states and 35331 transitions. [2022-07-14 00:08:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:08:40,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 137 [2022-07-14 00:08:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:40,340 INFO L225 Difference]: With dead ends: 22902 [2022-07-14 00:08:40,340 INFO L226 Difference]: Without dead ends: 11472 [2022-07-14 00:08:40,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:08:40,366 INFO L413 NwaCegarLoop]: 1189 mSDtfsCounter, 446 mSDsluCounter, 4203 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 5392 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:40,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 5392 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:08:40,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11472 states. [2022-07-14 00:08:40,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11472 to 11472. [2022-07-14 00:08:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11472 states, 8339 states have (on average 1.3366111044489748) internal successors, (11146), 8682 states have internal predecessors, (11146), 2250 states have call successors, (2250), 556 states have call predecessors, (2250), 882 states have return successors, (4291), 2306 states have call predecessors, (4291), 2247 states have call successors, (4291) [2022-07-14 00:08:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11472 states to 11472 states and 17687 transitions. [2022-07-14 00:08:40,718 INFO L78 Accepts]: Start accepts. Automaton has 11472 states and 17687 transitions. Word has length 137 [2022-07-14 00:08:40,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:40,719 INFO L495 AbstractCegarLoop]: Abstraction has 11472 states and 17687 transitions. [2022-07-14 00:08:40,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 00:08:40,719 INFO L276 IsEmpty]: Start isEmpty. Operand 11472 states and 17687 transitions. [2022-07-14 00:08:40,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-14 00:08:40,724 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:40,724 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-14 00:08:40,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:40,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:08:40,946 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:40,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:40,947 INFO L85 PathProgramCache]: Analyzing trace with hash 162839880, now seen corresponding path program 1 times [2022-07-14 00:08:40,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:08:40,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777528932] [2022-07-14 00:08:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:40,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:08:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:08:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:08:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:08:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:08:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:08:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-14 00:08:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:08:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:08:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:08:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:08:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-14 00:08:41,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:08:41,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777528932] [2022-07-14 00:08:41,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777528932] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:08:41,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16340884] [2022-07-14 00:08:41,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:41,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:08:41,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:08:41,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:08:41,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 00:08:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:43,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 56 conjunts are in the unsatisfiable core [2022-07-14 00:08:43,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:43,312 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-14 00:08:43,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:43,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16340884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:43,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:08:43,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 18 [2022-07-14 00:08:43,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609327679] [2022-07-14 00:08:43,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:43,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:08:43,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:08:43,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:08:43,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:08:43,314 INFO L87 Difference]: Start difference. First operand 11472 states and 17687 transitions. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 00:08:44,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:44,836 INFO L93 Difference]: Finished difference Result 26073 states and 40497 transitions. [2022-07-14 00:08:44,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 00:08:44,837 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 137 [2022-07-14 00:08:44,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:44,901 INFO L225 Difference]: With dead ends: 26073 [2022-07-14 00:08:44,901 INFO L226 Difference]: Without dead ends: 14643 [2022-07-14 00:08:44,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-07-14 00:08:44,937 INFO L413 NwaCegarLoop]: 2315 mSDtfsCounter, 2548 mSDsluCounter, 20148 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2639 SdHoareTripleChecker+Valid, 22463 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:44,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2639 Valid, 22463 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 00:08:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14643 states. [2022-07-14 00:08:45,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14643 to 11460. [2022-07-14 00:08:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11460 states, 8327 states have (on average 1.3364957367599375) internal successors, (11129), 8671 states have internal predecessors, (11129), 2250 states have call successors, (2250), 556 states have call predecessors, (2250), 882 states have return successors, (4291), 2305 states have call predecessors, (4291), 2247 states have call successors, (4291) [2022-07-14 00:08:45,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11460 states to 11460 states and 17670 transitions. [2022-07-14 00:08:45,555 INFO L78 Accepts]: Start accepts. Automaton has 11460 states and 17670 transitions. Word has length 137 [2022-07-14 00:08:45,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:45,555 INFO L495 AbstractCegarLoop]: Abstraction has 11460 states and 17670 transitions. [2022-07-14 00:08:45,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 00:08:45,556 INFO L276 IsEmpty]: Start isEmpty. Operand 11460 states and 17670 transitions. [2022-07-14 00:08:45,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-14 00:08:45,562 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:45,563 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-14 00:08:45,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-14 00:08:45,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:08:45,779 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:45,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:45,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1052789049, now seen corresponding path program 1 times [2022-07-14 00:08:45,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:08:45,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173117040] [2022-07-14 00:08:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:45,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:08:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:08:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:08:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:08:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:08:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:08:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-14 00:08:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:08:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:08:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:08:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:08:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 00:08:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:08:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:45,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:08:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:08:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-07-14 00:08:46,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:08:46,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173117040] [2022-07-14 00:08:46,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173117040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:46,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:46,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:08:46,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984163060] [2022-07-14 00:08:46,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:46,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:08:46,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:08:46,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:08:46,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:08:46,008 INFO L87 Difference]: Start difference. First operand 11460 states and 17670 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 00:08:48,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:50,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:53,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:55,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:57,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:08:59,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:09:02,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:02,499 INFO L93 Difference]: Finished difference Result 29846 states and 46823 transitions. [2022-07-14 00:09:02,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 00:09:02,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 158 [2022-07-14 00:09:02,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:02,584 INFO L225 Difference]: With dead ends: 29846 [2022-07-14 00:09:02,585 INFO L226 Difference]: Without dead ends: 18428 [2022-07-14 00:09:02,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:09:02,623 INFO L413 NwaCegarLoop]: 1726 mSDtfsCounter, 1770 mSDsluCounter, 5160 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 890 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 6886 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 890 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:02,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 6886 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [890 Valid, 2489 Invalid, 6 Unknown, 0 Unchecked, 15.7s Time] [2022-07-14 00:09:02,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18428 states. [2022-07-14 00:09:03,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18428 to 11476. [2022-07-14 00:09:03,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11476 states, 8343 states have (on average 1.3358504135203164) internal successors, (11145), 8687 states have internal predecessors, (11145), 2250 states have call successors, (2250), 556 states have call predecessors, (2250), 882 states have return successors, (4291), 2305 states have call predecessors, (4291), 2247 states have call successors, (4291) [2022-07-14 00:09:03,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11476 states to 11476 states and 17686 transitions. [2022-07-14 00:09:03,276 INFO L78 Accepts]: Start accepts. Automaton has 11476 states and 17686 transitions. Word has length 158 [2022-07-14 00:09:03,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:03,276 INFO L495 AbstractCegarLoop]: Abstraction has 11476 states and 17686 transitions. [2022-07-14 00:09:03,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 00:09:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 11476 states and 17686 transitions. [2022-07-14 00:09:03,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-14 00:09:03,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:03,283 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 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] [2022-07-14 00:09:03,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 00:09:03,283 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:03,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:03,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1339354368, now seen corresponding path program 1 times [2022-07-14 00:09:03,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:09:03,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228194881] [2022-07-14 00:09:03,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:03,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:09:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:09:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:09:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:09:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:09:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:09:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:09:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-14 00:09:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:09:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:09:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:09:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:09:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:09:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:09:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:09:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:09:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-07-14 00:09:03,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:09:03,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228194881] [2022-07-14 00:09:03,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228194881] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:09:03,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770745388] [2022-07-14 00:09:03,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:03,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:09:03,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:09:03,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:09:03,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 00:09:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:04,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 2393 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:09:04,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:09:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-14 00:09:04,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:09:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-07-14 00:09:04,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770745388] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:09:04,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:09:04,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 15 [2022-07-14 00:09:04,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753754798] [2022-07-14 00:09:04,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:09:04,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 00:09:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:09:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 00:09:04,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:09:04,549 INFO L87 Difference]: Start difference. First operand 11476 states and 17686 transitions. Second operand has 15 states, 15 states have (on average 9.266666666666667) internal successors, (139), 10 states have internal predecessors, (139), 2 states have call successors, (38), 7 states have call predecessors, (38), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:09:06,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:09:08,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:09:10,930 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 [] [2022-07-14 00:09:15,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:15,361 INFO L93 Difference]: Finished difference Result 24491 states and 37816 transitions. [2022-07-14 00:09:15,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 00:09:15,361 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.266666666666667) internal successors, (139), 10 states have internal predecessors, (139), 2 states have call successors, (38), 7 states have call predecessors, (38), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 153 [2022-07-14 00:09:15,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:15,418 INFO L225 Difference]: With dead ends: 24491 [2022-07-14 00:09:15,418 INFO L226 Difference]: Without dead ends: 13021 [2022-07-14 00:09:15,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 325 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2022-07-14 00:09:15,449 INFO L413 NwaCegarLoop]: 1155 mSDtfsCounter, 928 mSDsluCounter, 4519 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 958 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 3316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:15,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 5674 Invalid, 3316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [958 Valid, 2355 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2022-07-14 00:09:15,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13021 states. [2022-07-14 00:09:15,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13021 to 11487. [2022-07-14 00:09:15,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11487 states, 8354 states have (on average 1.3354081876945176) internal successors, (11156), 8698 states have internal predecessors, (11156), 2250 states have call successors, (2250), 556 states have call predecessors, (2250), 882 states have return successors, (4291), 2305 states have call predecessors, (4291), 2247 states have call successors, (4291) [2022-07-14 00:09:15,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11487 states to 11487 states and 17697 transitions. [2022-07-14 00:09:15,970 INFO L78 Accepts]: Start accepts. Automaton has 11487 states and 17697 transitions. Word has length 153 [2022-07-14 00:09:15,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:15,970 INFO L495 AbstractCegarLoop]: Abstraction has 11487 states and 17697 transitions. [2022-07-14 00:09:15,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.266666666666667) internal successors, (139), 10 states have internal predecessors, (139), 2 states have call successors, (38), 7 states have call predecessors, (38), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:09:15,970 INFO L276 IsEmpty]: Start isEmpty. Operand 11487 states and 17697 transitions. [2022-07-14 00:09:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-14 00:09:15,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:15,977 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 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] [2022-07-14 00:09:16,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:09:16,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-14 00:09:16,190 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:16,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:16,191 INFO L85 PathProgramCache]: Analyzing trace with hash 436590142, now seen corresponding path program 2 times [2022-07-14 00:09:16,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:09:16,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365196343] [2022-07-14 00:09:16,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:16,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:09:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 00:09:16,445 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 00:09:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 00:09:16,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 00:09:16,871 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 00:09:16,872 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-14 00:09:16,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 00:09:16,876 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:09:16,880 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 00:09:16,924 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-07-14 00:09:17,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:09:17 BoogieIcfgContainer [2022-07-14 00:09:17,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 00:09:17,112 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 00:09:17,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 00:09:17,112 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 00:09:17,113 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:06:57" (3/4) ... [2022-07-14 00:09:17,115 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 00:09:17,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 00:09:17,115 INFO L158 Benchmark]: Toolchain (without parser) took 146112.87ms. Allocated memory was 121.6MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 85.3MB in the beginning and 1.1GB in the end (delta: -966.2MB). Peak memory consumption was 440.5MB. Max. memory is 16.1GB. [2022-07-14 00:09:17,116 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:09:17,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1333.61ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 85.3MB in the beginning and 74.8MB in the end (delta: 10.5MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2022-07-14 00:09:17,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.10ms. Allocated memory is still 157.3MB. Free memory was 74.8MB in the beginning and 57.2MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-14 00:09:17,116 INFO L158 Benchmark]: Boogie Preprocessor took 156.79ms. Allocated memory is still 157.3MB. Free memory was 57.2MB in the beginning and 76.5MB in the end (delta: -19.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-07-14 00:09:17,120 INFO L158 Benchmark]: RCFGBuilder took 4609.12ms. Allocated memory was 157.3MB in the beginning and 262.1MB in the end (delta: 104.9MB). Free memory was 76.5MB in the beginning and 169.2MB in the end (delta: -92.6MB). Peak memory consumption was 119.1MB. Max. memory is 16.1GB. [2022-07-14 00:09:17,121 INFO L158 Benchmark]: TraceAbstraction took 139856.90ms. Allocated memory was 262.1MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 169.2MB in the beginning and 1.1GB in the end (delta: -882.4MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-07-14 00:09:17,121 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 1.5GB. Free memory is still 1.1GB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:09:17,127 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1333.61ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 85.3MB in the beginning and 74.8MB in the end (delta: 10.5MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 147.10ms. Allocated memory is still 157.3MB. Free memory was 74.8MB in the beginning and 57.2MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 156.79ms. Allocated memory is still 157.3MB. Free memory was 57.2MB in the beginning and 76.5MB in the end (delta: -19.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * RCFGBuilder took 4609.12ms. Allocated memory was 157.3MB in the beginning and 262.1MB in the end (delta: 104.9MB). Free memory was 76.5MB in the beginning and 169.2MB in the end (delta: -92.6MB). Peak memory consumption was 119.1MB. Max. memory is 16.1GB. * TraceAbstraction took 139856.90ms. Allocated memory was 262.1MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 169.2MB in the beginning and 1.1GB in the end (delta: -882.4MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 1.5GB. Free memory is still 1.1GB. 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) * 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: 7054]: 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 8527. Possible FailurePath: [L7077] int LDV_IN_INTERRUPT = 1; [L7078] struct usb_interface *mwifiex_usb_driver_group1 ; [L7079] int ldv_state_variable_2 ; [L7080] int ref_cnt ; [L7081] struct mwifiex_adapter *usb_ops_group0 ; [L7082] int ldv_state_variable_1 ; [L7083] int usb_counter ; [L7084] struct sk_buff *usb_ops_group1 ; [L7085] int ldv_state_variable_0 ; [L7166-L7168] static char const usbdriver_name[8U] = { 'u', 's', 'b', '8', '7', '9', '7', '\000'}; [L7170] static struct semaphore add_remove_card_sem ; [L7171] static struct usb_card_rec *usb_card ; [L7172-L7176] static struct usb_device_id mwifiex_usb_table[3U] = { {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}}; [L7177] struct usb_device_id const __mod_usb_device_table ; [L8001-L8007] static struct usb_driver mwifiex_usb_driver = {(char const *)(& usbdriver_name), & 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, 1U, (unsigned char)0, (unsigned char)0}; [L8502-L8506] 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}; [L8586] int ldv_retval_0 ; [L8587] int ldv_retval_4 ; [L8588] int ldv_retval_1 ; [L8592] int ldv_retval_3 ; [L8593] int ldv_retval_2 ; [L8989] int INTERF_STATE = 0; [L8990] int SERIAL_STATE = 0; [L8991] void *usb_intfdata = 0; [L8992] struct urb *usb_urb = 0; [L8993] struct usb_device *usb_dev = 0; [L8994] int dev_counter = 0; [L8995] int completeFnIntCounter = 0; [L8996] int completeFnBulkCounter = 0; [L8997] void (*completeFnInt)(struct urb * ) ; [L8998] void (*completeFnBulk)(struct urb * ) ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8617] u8 ldvarg1 ; [L8618] u8 tmp ; [L8619] struct mwifiex_tx_param *ldvarg0 ; [L8620] void *tmp___0 ; [L8621] struct mwifiex_fw_image *ldvarg2 ; [L8622] void *tmp___1 ; [L8623] struct usb_device_id *ldvarg4 ; [L8624] void *tmp___2 ; [L8625] pm_message_t ldvarg3 ; [L8626] int tmp___3 ; [L8627] int tmp___4 ; [L8628] int tmp___5 ; [L8629] int tmp___6 ; [L8631] tmp = __VERIFIER_nondet_u8() [L8632] ldvarg1 = tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1=59, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8633] CALL, EXPR ldv_zalloc(4UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=4, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=4, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8633] RET, EXPR ldv_zalloc(4UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(4UL)={0:0}, ldvarg1=59, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8633] tmp___0 = ldv_zalloc(4UL) [L8634] ldvarg0 = (struct mwifiex_tx_param *)tmp___0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8635] CALL, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=32, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=32, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8635] RET, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(32UL)={0:0}, ldvarg0={0:0}, ldvarg1=59, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8635] tmp___1 = ldv_zalloc(32UL) [L8636] ldvarg2 = (struct mwifiex_fw_image *)tmp___1 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8637] CALL, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=32, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=32, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8637] RET, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(32UL)={0:0}, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8637] tmp___2 = ldv_zalloc(32UL) [L8638] ldvarg4 = (struct usb_device_id *)tmp___2 [L8639] FCALL ldv_initialize() [L8640] FCALL memset((void *)(& ldvarg3), 0, 4UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, memset((void *)(& ldvarg3), 0, 4UL)={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8641] ldv_state_variable_1 = 0 [L8642] ref_cnt = 0 [L8643] ldv_state_variable_0 = 1 [L8644] ldv_state_variable_2 = 0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8646] tmp___3 = __VERIFIER_nondet_int() [L8648] case 0: [L8722] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8723] COND TRUE ldv_state_variable_0 != 0 [L8724] tmp___5 = __VERIFIER_nondet_int() [L8726] case 0: [L8734] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8735] COND TRUE ldv_state_variable_0 == 1 [L8736] CALL, EXPR mwifiex_usb_init_module() [L8509] int ret ; [L8510] struct _ddebug descriptor ; [L8511] long tmp ; [L8512] struct _ddebug descriptor___0 ; [L8513] long tmp___0 ; [L8515] descriptor.modname = "mwifiex_usb" [L8516] descriptor.function = "mwifiex_usb_init_module" [L8517] descriptor.filename = "/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6606/dscv_tempdir/dscv/ri/144_2a/drivers/net/wireless/mwifiex/usb.o.c.prepared" [L8518] descriptor.format = "Marvell USB8797 Driver\n" [L8519] descriptor.lineno = 1030U [L8520] descriptor.flags = 0U [L8521] EXPR descriptor.flags VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor.flags=0, descriptor___0={166:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8521] CALL, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [={0:0}, ={0:0}, \old(c)=0, \old(exp)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7067] return (exp); VAL [={0:0}, ={0:0}, \old(c)=0, \old(exp)=0, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, c=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, exp=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8521] RET, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor.flags=0, descriptor___0={166:0}, dev_counter=0, INTERF_STATE=0, ldv__builtin_expect((long )descriptor.flags & 1L, 0L)=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8521] tmp = ldv__builtin_expect((long )descriptor.flags & 1L, 0L) [L8522] COND FALSE !(tmp != 0L) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor___0={166:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8526] CALL sema_init(& add_remove_card_sem, 1) [L6892] struct lock_class_key __key ; [L6893] struct semaphore __constr_expr_0 ; [L6895] __constr_expr_0.lock.raw_lock.ldv_2243.head_tail = 0U [L6896] __constr_expr_0.lock.magic = 3735899821U [L6897] __constr_expr_0.lock.owner_cpu = 4294967295U [L6898] __constr_expr_0.lock.owner = (void *)-1 [L6899] __constr_expr_0.lock.dep_map.key = 0 [L6900] __constr_expr_0.lock.dep_map.class_cache[0] = 0 [L6901] __constr_expr_0.lock.dep_map.class_cache[1] = 0 [L6902] __constr_expr_0.lock.dep_map.name = "(*sem).lock" [L6903] __constr_expr_0.lock.dep_map.cpu = 0 [L6904] __constr_expr_0.lock.dep_map.ip = 0UL [L6905] __constr_expr_0.count = (unsigned int )val [L6906] __constr_expr_0.wait_list.next = & sem->wait_list [L6907] __constr_expr_0.wait_list.prev = & sem->wait_list [L6908] *sem = __constr_expr_0 [L6909] FCALL lockdep_init_map(& sem->lock.dep_map, "semaphore->lock", & __key, 0) [L6910] return; [L6910] return; VAL [={0:0}, ={0:0}, \old(val)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, sem={161:0}, sem={161:0}, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}, val=1] [L8526] RET sema_init(& add_remove_card_sem, 1) [L8527] CALL, EXPR ldv_usb_register_driver_22(& mwifiex_usb_driver, & __this_module, "mwifiex_usb") [L8961] ldv_func_ret_type ldv_func_res ; [L8962] int tmp ; [L8964] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L9357] return __VERIFIER_nondet_int(); [L8964] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8964] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8965] ldv_func_res = tmp [L8966] ldv_state_variable_2 = 1 [L8967] usb_counter = 0 [L8968] CALL ldv_usb_driver_2() [L8596] void *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8598] CALL, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=1520, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=1520, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8598] RET, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ldv_zalloc(1520UL)={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8598] tmp = ldv_zalloc(1520UL) [L8599] mwifiex_usb_driver_group1 = (struct usb_interface *)tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8968] RET ldv_usb_driver_2() [L8969] return (ldv_func_res); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={163:0}, ldv_func_arg1={163:0}, ldv_func_arg2={4294967313:4294967299}, ldv_func_arg2={4294967313:4294967299}, ldv_func_arg3={153:0}, ldv_func_arg3={153:0}, 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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8527] RET, EXPR ldv_usb_register_driver_22(& mwifiex_usb_driver, & __this_module, "mwifiex_usb") [L8527] ret = ldv_usb_register_driver_22(& mwifiex_usb_driver, & __this_module, "mwifiex_usb") [L8528] COND FALSE !(ret != 0) [L8531] descriptor___0.modname = "mwifiex_usb" [L8532] descriptor___0.function = "mwifiex_usb_init_module" [L8533] descriptor___0.filename = "/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6606/dscv_tempdir/dscv/ri/144_2a/drivers/net/wireless/mwifiex/usb.o.c.prepared" [L8534] descriptor___0.format = "info: Driver registered successfully!\n" [L8535] descriptor___0.lineno = 1038U [L8536] descriptor___0.flags = 0U [L8537] EXPR descriptor___0.flags VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor___0={166:0}, descriptor___0.flags=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=0, SERIAL_STATE=0, tmp=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8537] CALL, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [={0:0}, ={0:0}, \old(c)=0, \old(exp)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7067] return (exp); VAL [={0:0}, ={0:0}, \old(c)=0, \old(exp)=0, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, c=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, exp=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8537] RET, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor___0={166:0}, descriptor___0.flags=0, dev_counter=0, INTERF_STATE=0, ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L)=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=0, SERIAL_STATE=0, tmp=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8537] tmp___0 = ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) [L8538] COND FALSE !(tmp___0 != 0L) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor___0={166:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=0, SERIAL_STATE=0, tmp=0, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8543] return (ret); [L8543] return (ret); [L8543] return (ret); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=0, SERIAL_STATE=0, tmp=0, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8736] RET, EXPR mwifiex_usb_init_module() [L8736] ldv_retval_0 = mwifiex_usb_init_module() [L8737] COND TRUE ldv_retval_0 == 0 [L8738] ldv_state_variable_0 = 3 [L8739] ldv_state_variable_1 = 1 [L8740] CALL ldv_initialize_mwifiex_if_ops_1() [L8605] void *tmp ; [L8606] void *tmp___0 ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8608] CALL, EXPR ldv_zalloc(5920UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=5920, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=5920, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8608] RET, EXPR ldv_zalloc(5920UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(5920UL)={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8608] tmp = ldv_zalloc(5920UL) [L8609] usb_ops_group0 = (struct mwifiex_adapter *)tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8610] CALL, EXPR ldv_zalloc(240UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=240, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=240, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8610] RET, EXPR ldv_zalloc(240UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(240UL)={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8610] tmp___0 = ldv_zalloc(240UL) [L8611] usb_ops_group1 = (struct sk_buff *)tmp___0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8740] RET ldv_initialize_mwifiex_if_ops_1() [L8743] COND FALSE !(ldv_retval_0 != 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8646] tmp___3 = __VERIFIER_nondet_int() [L8648] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8649] COND TRUE ldv_state_variable_1 != 0 [L8650] tmp___4 = __VERIFIER_nondet_int() [L8652] case 0: [L8659] case 1: [L8666] case 2: [L8673] case 3: [L8680] case 4: [L8687] case 5: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=5, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8688] COND TRUE ldv_state_variable_1 == 1 [L8689] CALL mwifiex_usb_dnld_fw(usb_ops_group0, ldvarg2) [L8435] int ret ; [L8436] struct usb_card_rec *card ; [L8438] EXPR adapter->card [L8438] card = (struct usb_card_rec *)adapter->card [L8439] EXPR card->usb_boot_state VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967304:-206}, card->usb_boot_state=171, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, fw={0:0}, fw={0:0}, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8439] COND FALSE !((unsigned int )card->usb_boot_state == 1U) [L8451] CALL, EXPR mwifiex_usb_rx_init(adapter) [L8045] struct usb_card_rec *card ; [L8046] int i ; [L8047] int tmp ; [L8048] int tmp___0 ; [L8050] EXPR adapter->card [L8050] card = (struct usb_card_rec *)adapter->card [L8051] card->rx_cmd.adapter = adapter [L8052] EXPR card->rx_cmd_ep [L8052] card->rx_cmd.ep = card->rx_cmd_ep [L8053] CALL, EXPR ldv_usb_alloc_urb_17(0, 208U) [L8936] struct urb *tmp ; VAL [={0:0}, ={0:0}, \old(iso_packets)=0, \old(mem_flags)=208, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, iso_packets=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mem_flags=208, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8938] CALL, EXPR ldv_alloc_urb() VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9021] struct urb *value ; [L9022] void *tmp ; [L9023] int tmp___0 ; VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9025] CALL, EXPR ldv_malloc(sizeof(struct urb)) VAL [={0:0}, ={0:0}, \old(size)=184, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7002] void *p ; [L7003] void *tmp ; [L7004] int tmp___0 ; [L7006] tmp___0 = __VERIFIER_nondet_int() [L7007] COND FALSE !(tmp___0 != 0) [L7010] tmp = malloc(size) [L7011] p = tmp VAL [={0:0}, ={0:0}, \old(size)=184, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, p={-18446744073709551617:0}, ref_cnt=0, SERIAL_STATE=0, size=184, tmp={-18446744073709551617:0}, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7012] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(cond)=1, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L6998] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \old(cond)=1, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7012] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=184, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, p={-18446744073709551617:0}, ref_cnt=0, SERIAL_STATE=0, size=184, tmp={-18446744073709551617:0}, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7013] return (p); VAL [={0:0}, ={0:0}, \old(size)=184, \old(usb_urb)=0, \old(usb_urb)=0, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, p={-18446744073709551617:0}, ref_cnt=0, SERIAL_STATE=0, size=184, tmp={-18446744073709551617:0}, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9025] RET, EXPR ldv_malloc(sizeof(struct urb)) VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct urb))={-18446744073709551617:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9025] tmp = ldv_malloc(sizeof(struct urb)) [L9026] value = tmp VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L9027] CALL, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7036] int tmp ; [L7038] tmp = __VERIFIER_nondet_int() [L7039] return (tmp); VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, \result=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9027] RET, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_undef_int()=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L9027] tmp___0 = ldv_undef_int() [L9028] COND TRUE \read(tmp___0) VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L9029] COND TRUE (unsigned long )value != (unsigned long )((struct urb *)0) [L9030] usb_urb = value VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L9035] return (usb_urb); VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L8938] RET, EXPR ldv_alloc_urb() VAL [={0:0}, ={0:0}, \old(iso_packets)=0, \old(mem_flags)=208, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, iso_packets=0, ldv_alloc_urb()={-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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mem_flags=208, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8938] tmp = ldv_alloc_urb() [L8939] return (tmp); VAL [={0:0}, ={0:0}, \old(iso_packets)=0, \old(mem_flags)=208, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, iso_packets=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mem_flags=208, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8053] RET, EXPR ldv_usb_alloc_urb_17(0, 208U) [L8053] card->rx_cmd.urb = ldv_usb_alloc_urb_17(0, 208U) [L8054] EXPR card->rx_cmd.urb VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967304:-206}, card->rx_cmd.urb={-18446744073709551617:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8054] COND FALSE !((unsigned long )card->rx_cmd.urb == (unsigned long )((struct urb *)0)) [L8059] CALL, EXPR dev_alloc_skb(2048U) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7104] struct sk_buff *tmp ; [L7106] CALL, EXPR netdev_alloc_skb((struct net_device *)0, length) [L7096] struct sk_buff *tmp ; [L7098] CALL, EXPR __netdev_alloc_skb(dev, length, 32U) [L9240] CALL, EXPR ldv_malloc(sizeof(struct sk_buff)) VAL [={0:0}, ={0:0}, \old(size)=253, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7002] void *p ; [L7003] void *tmp ; [L7004] int tmp___0 ; [L7006] tmp___0 = __VERIFIER_nondet_int() [L7007] COND TRUE tmp___0 != 0 [L7008] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=253, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=253, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L9240] RET, EXPR ldv_malloc(sizeof(struct sk_buff)) VAL [={0:0}, ={0:0}, \old(arg1)=2048, \old(arg2)=32, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, arg0={0:0}, arg0={0:0}, arg1=2048, arg2=32, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct sk_buff))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L9240] struct sk_buff *skb = ldv_malloc(sizeof(struct sk_buff)); [L9241] COND FALSE !(\read(*skb)) VAL [={0:0}, ={0:0}, \old(arg1)=2048, \old(arg2)=32, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, arg0={0:0}, arg0={0:0}, arg1=2048, arg2=32, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, skb={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L9247] return skb; VAL [={0:0}, ={0:0}, \old(arg1)=2048, \old(arg2)=32, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, arg0={0:0}, arg0={0:0}, arg1=2048, arg2=32, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, skb={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7098] RET, EXPR __netdev_alloc_skb(dev, length, 32U) [L7098] tmp = __netdev_alloc_skb(dev, length, 32U) [L7099] return (tmp); VAL [={0:0}, ={0:0}, \old(length)=2048, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:0}, dev={0:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7106] RET, EXPR netdev_alloc_skb((struct net_device *)0, length) [L7106] tmp = netdev_alloc_skb((struct net_device *)0, length) [L7107] return (tmp); VAL [={0:0}, ={0:0}, \old(length)=2048, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8059] RET, EXPR dev_alloc_skb(2048U) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967304:-206}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_alloc_skb(2048U)={0:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8059] card->rx_cmd.skb = dev_alloc_skb(2048U) [L8060] EXPR card->rx_cmd.skb VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967304:-206}, card->rx_cmd.skb={0:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8060] COND TRUE (unsigned long )card->rx_cmd.skb == (unsigned long )((struct sk_buff *)0) [L8061] adapter->dev [L8062] return (-12); VAL [={0:0}, ={0:0}, \result=-12, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967304:-206}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8451] RET, EXPR mwifiex_usb_rx_init(adapter) [L8451] ret = mwifiex_usb_rx_init(adapter) [L8452] COND FALSE !(ret == 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967304:-206}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, fw={0:0}, fw={0:0}, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=-12, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8456] return (ret); VAL [={0:0}, ={0:0}, \result=-12, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967304:-206}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, fw={0:0}, fw={0:0}, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=-12, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8689] RET mwifiex_usb_dnld_fw(usb_ops_group0, ldvarg2) [L8690] ldv_state_variable_1 = 1 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=5, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8646] tmp___3 = __VERIFIER_nondet_int() [L8648] case 0: [L8722] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___4=5, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8723] COND TRUE ldv_state_variable_0 != 0 [L8724] tmp___5 = __VERIFIER_nondet_int() [L8726] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___4=5, tmp___5=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8727] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L8728] CALL mwifiex_usb_cleanup_module() [L8548] int tmp ; [L8549] struct mwifiex_adapter *adapter ; [L8550] int i ; [L8551] struct mwifiex_private *tmp___0 ; [L8553] CALL, EXPR down_interruptible(& add_remove_card_sem) [L9262] return __VERIFIER_nondet_int(); [L8553] RET, EXPR down_interruptible(& add_remove_card_sem) [L8553] tmp = down_interruptible(& add_remove_card_sem) [L8554] COND FALSE !(tmp == 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8558] COND FALSE !((unsigned long )usb_card != (unsigned long )((struct usb_card_rec *)0)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8582] CALL ldv_usb_deregister_23(& mwifiex_usb_driver) [L8975] FCALL usb_deregister(arg) [L8976] ldv_state_variable_2 = 0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, arg={163:0}, arg={163:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8582] RET ldv_usb_deregister_23(& mwifiex_usb_driver) [L8728] RET mwifiex_usb_cleanup_module() [L8729] ldv_state_variable_0 = 2 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___4=5, tmp___5=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8830] CALL ldv_check_final_state() [L9208] COND FALSE !((unsigned long )usb_urb == (unsigned long )((struct urb *)0)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L9210] CALL ldv_error() VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7054] reach_error() VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967313:4294967299}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 857 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 139.6s, OverallIterations: 17, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 121.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 mSolverCounterUnknown, 24881 SdHoareTripleChecker+Valid, 112.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23287 mSDsluCounter, 90742 SdHoareTripleChecker+Invalid, 106.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69016 mSDsCounter, 12303 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22745 IncrementalHoareTripleChecker+Invalid, 35084 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12303 mSolverCounterUnsat, 21726 mSDtfsCounter, 22745 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1318 GetRequests, 1137 SyntacticMatches, 1 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12466occurred in iteration=9, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 22542 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 2550 NumberOfCodeBlocks, 2550 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2525 ConstructedInterpolants, 0 QuantifiedInterpolants, 4867 SizeOfPredicates, 41 NumberOfNonLiveVariables, 11427 ConjunctsInSsa, 150 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 1228/1235 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 [2022-07-14 00:09:17,350 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-07-14 00:09:17,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 9f2fac8642c25f1335350a2814ff7cf3c4ea0fb7f4feaed63baec564397e8f24 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:09:18,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:09:18,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:09:19,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:09:19,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:09:19,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:09:19,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:09:19,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:09:19,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:09:19,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:09:19,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:09:19,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:09:19,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:09:19,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:09:19,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:09:19,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:09:19,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:09:19,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:09:19,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:09:19,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:09:19,037 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:09:19,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:09:19,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:09:19,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:09:19,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:09:19,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:09:19,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:09:19,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:09:19,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:09:19,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:09:19,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:09:19,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:09:19,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:09:19,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:09:19,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:09:19,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:09:19,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:09:19,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:09:19,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:09:19,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:09:19,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:09:19,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:09:19,077 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:09:19,111 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:09:19,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:09:19,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:09:19,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:09:19,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:09:19,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:09:19,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:09:19,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:09:19,113 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:09:19,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:09:19,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:09:19,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:09:19,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:09:19,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:09:19,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:09:19,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:09:19,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:09:19,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:09:19,115 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:09:19,115 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:09:19,116 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:09:19,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:09:19,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:09:19,116 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:09:19,116 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f2fac8642c25f1335350a2814ff7cf3c4ea0fb7f4feaed63baec564397e8f24 [2022-07-14 00:09:19,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:09:19,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:09:19,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:09:19,419 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:09:19,420 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:09:19,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-07-14 00:09:19,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cce56227e/23b3b02df64e4551af0f88c455740c79/FLAGfd65d0763 [2022-07-14 00:09:20,185 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:09:20,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-07-14 00:09:20,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cce56227e/23b3b02df64e4551af0f88c455740c79/FLAGfd65d0763 [2022-07-14 00:09:20,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cce56227e/23b3b02df64e4551af0f88c455740c79 [2022-07-14 00:09:20,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:09:20,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:09:20,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:09:20,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:09:20,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:09:20,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:09:20" (1/1) ... [2022-07-14 00:09:20,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f648d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:20, skipping insertion in model container [2022-07-14 00:09:20,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:09:20" (1/1) ... [2022-07-14 00:09:20,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:09:20,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:09:21,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-07-14 00:09:21,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:09:21,729 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:09:21,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:09:21,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-07-14 00:09:22,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:09:22,080 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:09:22,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-07-14 00:09:22,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:09:22,408 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:09:22,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22 WrapperNode [2022-07-14 00:09:22,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:09:22,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:09:22,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:09:22,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:09:22,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,544 INFO L137 Inliner]: procedures = 178, calls = 1186, calls flagged for inlining = 76, calls inlined = 76, statements flattened = 2976 [2022-07-14 00:09:22,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:09:22,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:09:22,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:09:22,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:09:22,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:09:22,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:09:22,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:09:22,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:09:22,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (1/1) ... [2022-07-14 00:09:22,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:09:22,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:09:22,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:09:22,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:09:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-14 00:09:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-14 00:09:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unregister_dev [2022-07-14 00:09:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unregister_dev [2022-07-14 00:09:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2022-07-14 00:09:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2022-07-14 00:09:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:09:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-14 00:09:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-14 00:09:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-07-14 00:09:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-07-14 00:09:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:09:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:09:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:09:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:09:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:09:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-14 00:09:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-14 00:09:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:09:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:09:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-14 00:09:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-14 00:09:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-14 00:09:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-14 00:09:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-14 00:09:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-14 00:09:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:09:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:09:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2022-07-14 00:09:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2022-07-14 00:09:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 00:09:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 00:09:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:09:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:09:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-14 00:09:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-14 00:09:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-14 00:09:22,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-14 00:09:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-07-14 00:09:22,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-07-14 00:09:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2022-07-14 00:09:22,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2022-07-14 00:09:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:09:22,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:09:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:09:22,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:09:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_rx_complete [2022-07-14 00:09:22,786 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_rx_complete [2022-07-14 00:09:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 00:09:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-07-14 00:09:22,787 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-07-14 00:09:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 00:09:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 00:09:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 00:09:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-14 00:09:22,789 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-14 00:09:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:09:22,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:09:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 00:09:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 00:09:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:09:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:09:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:09:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:09:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:09:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-14 00:09:22,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-14 00:09:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-14 00:09:22,791 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-14 00:09:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:09:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-14 00:09:22,791 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-14 00:09:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 00:09:22,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 00:09:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:09:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:09:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 00:09:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 00:09:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:09:22,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:09:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 00:09:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2022-07-14 00:09:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2022-07-14 00:09:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2022-07-14 00:09:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2022-07-14 00:09:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:09:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-14 00:09:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-14 00:09:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-07-14 00:09:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-07-14 00:09:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:09:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:09:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 00:09:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:09:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:09:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:09:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 00:09:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:09:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:09:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:09:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_10 [2022-07-14 00:09:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_10 [2022-07-14 00:09:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:09:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:09:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-14 00:09:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-14 00:09:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 00:09:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2022-07-14 00:09:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2022-07-14 00:09:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-14 00:09:22,799 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-14 00:09:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-14 00:09:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-14 00:09:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-07-14 00:09:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:09:22,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:09:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:09:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:09:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-07-14 00:09:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-07-14 00:09:23,351 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:09:23,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:09:24,031 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:09:29,624 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-14 00:09:39,303 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:09:39,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:09:39,321 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:09:39,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:09:39 BoogieIcfgContainer [2022-07-14 00:09:39,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:09:39,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:09:39,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:09:39,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:09:39,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:09:20" (1/3) ... [2022-07-14 00:09:39,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d8c93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:09:39, skipping insertion in model container [2022-07-14 00:09:39,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:09:22" (2/3) ... [2022-07-14 00:09:39,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d8c93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:09:39, skipping insertion in model container [2022-07-14 00:09:39,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:09:39" (3/3) ... [2022-07-14 00:09:39,333 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-07-14 00:09:39,344 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:09:39,344 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:09:39,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:09:39,425 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@75214e2d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1b64e7b9 [2022-07-14 00:09:39,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:09:39,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 855 states, 631 states have (on average 1.3851030110935023) internal successors, (874), 657 states have internal predecessors, (874), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) [2022-07-14 00:09:39,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 00:09:39,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:39,453 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:39,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:39,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:39,459 INFO L85 PathProgramCache]: Analyzing trace with hash -967497407, now seen corresponding path program 1 times [2022-07-14 00:09:39,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:09:39,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825701917] [2022-07-14 00:09:39,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:39,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:09:39,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:09:39,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:09:39,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 00:09:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:40,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:09:40,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:09:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 00:09:40,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:09:40,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:09:40,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825701917] [2022-07-14 00:09:40,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825701917] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:40,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:40,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:09:40,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555204131] [2022-07-14 00:09:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:40,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:09:40,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:09:40,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:09:40,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:09:40,232 INFO L87 Difference]: Start difference. First operand has 855 states, 631 states have (on average 1.3851030110935023) internal successors, (874), 657 states have internal predecessors, (874), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-07-14 00:09:40,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:40,515 INFO L93 Difference]: Finished difference Result 1708 states and 2504 transitions. [2022-07-14 00:09:40,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:09:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 44 [2022-07-14 00:09:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:40,538 INFO L225 Difference]: With dead ends: 1708 [2022-07-14 00:09:40,538 INFO L226 Difference]: Without dead ends: 842 [2022-07-14 00:09:40,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:09:40,550 INFO L413 NwaCegarLoop]: 1217 mSDtfsCounter, 2 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3648 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 [2022-07-14 00:09:40,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3648 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:09:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-07-14 00:09:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2022-07-14 00:09:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 626 states have (on average 1.3722044728434504) internal successors, (859), 644 states have internal predecessors, (859), 174 states have call successors, (174), 42 states have call predecessors, (174), 41 states have return successors, (169), 161 states have call predecessors, (169), 169 states have call successors, (169) [2022-07-14 00:09:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1202 transitions. [2022-07-14 00:09:40,623 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1202 transitions. Word has length 44 [2022-07-14 00:09:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:40,624 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1202 transitions. [2022-07-14 00:09:40,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-07-14 00:09:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1202 transitions. [2022-07-14 00:09:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 00:09:40,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:40,627 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:40,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:09:40,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:09:40,842 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:40,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:40,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1457155709, now seen corresponding path program 1 times [2022-07-14 00:09:40,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:09:40,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610153260] [2022-07-14 00:09:40,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:40,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:09:40,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:09:40,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:09:40,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 00:09:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:41,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:09:41,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:09:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 00:09:41,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:09:42,053 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 00:09:42,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:09:42,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610153260] [2022-07-14 00:09:42,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610153260] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:09:42,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:09:42,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 00:09:42,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564112270] [2022-07-14 00:09:42,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:09:42,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:09:42,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:09:42,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:09:42,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:09:42,056 INFO L87 Difference]: Start difference. First operand 842 states and 1202 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2022-07-14 00:09:42,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:42,897 INFO L93 Difference]: Finished difference Result 1685 states and 2407 transitions. [2022-07-14 00:09:42,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 00:09:42,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 45 [2022-07-14 00:09:42,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:42,904 INFO L225 Difference]: With dead ends: 1685 [2022-07-14 00:09:42,904 INFO L226 Difference]: Without dead ends: 851 [2022-07-14 00:09:42,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:09:42,907 INFO L413 NwaCegarLoop]: 1199 mSDtfsCounter, 9 mSDsluCounter, 3592 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4791 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:42,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4791 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 00:09:42,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2022-07-14 00:09:42,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 851. [2022-07-14 00:09:42,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 634 states have (on average 1.3722397476340693) internal successors, (870), 652 states have internal predecessors, (870), 174 states have call successors, (174), 43 states have call predecessors, (174), 42 states have return successors, (169), 161 states have call predecessors, (169), 169 states have call successors, (169) [2022-07-14 00:09:42,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1213 transitions. [2022-07-14 00:09:42,960 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1213 transitions. Word has length 45 [2022-07-14 00:09:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:42,961 INFO L495 AbstractCegarLoop]: Abstraction has 851 states and 1213 transitions. [2022-07-14 00:09:42,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2022-07-14 00:09:42,962 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1213 transitions. [2022-07-14 00:09:42,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 00:09:42,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:42,965 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:42,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:09:43,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:09:43,182 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:43,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:43,182 INFO L85 PathProgramCache]: Analyzing trace with hash 726542785, now seen corresponding path program 2 times [2022-07-14 00:09:43,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:09:43,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734066871] [2022-07-14 00:09:43,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:09:43,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:09:43,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:09:43,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:09:43,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 00:09:43,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:09:43,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:09:43,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:09:43,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:09:43,801 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-14 00:09:43,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:09:43,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:09:43,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734066871] [2022-07-14 00:09:43,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734066871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:43,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:43,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:09:43,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788191089] [2022-07-14 00:09:43,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:43,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:09:43,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:09:43,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:09:43,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:09:43,804 INFO L87 Difference]: Start difference. First operand 851 states and 1213 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-07-14 00:09:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:44,174 INFO L93 Difference]: Finished difference Result 2456 states and 3510 transitions. [2022-07-14 00:09:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:09:44,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 48 [2022-07-14 00:09:44,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:44,182 INFO L225 Difference]: With dead ends: 2456 [2022-07-14 00:09:44,183 INFO L226 Difference]: Without dead ends: 1624 [2022-07-14 00:09:44,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:09:44,186 INFO L413 NwaCegarLoop]: 1387 mSDtfsCounter, 1122 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:44,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 2553 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 00:09:44,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2022-07-14 00:09:44,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1624. [2022-07-14 00:09:44,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1208 states have (on average 1.3741721854304636) internal successors, (1660), 1240 states have internal predecessors, (1660), 332 states have call successors, (332), 84 states have call predecessors, (332), 83 states have return successors, (327), 311 states have call predecessors, (327), 327 states have call successors, (327) [2022-07-14 00:09:44,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2319 transitions. [2022-07-14 00:09:44,262 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2319 transitions. Word has length 48 [2022-07-14 00:09:44,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:44,263 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2319 transitions. [2022-07-14 00:09:44,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-07-14 00:09:44,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2319 transitions. [2022-07-14 00:09:44,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-14 00:09:44,265 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:44,265 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:44,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:09:44,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:09:44,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:44,484 INFO L85 PathProgramCache]: Analyzing trace with hash 11952355, now seen corresponding path program 1 times [2022-07-14 00:09:44,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:09:44,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822316144] [2022-07-14 00:09:44,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:44,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:09:44,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:09:44,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:09:44,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 00:09:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:45,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 00:09:45,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:09:45,660 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-14 00:09:45,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:09:45,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:09:45,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822316144] [2022-07-14 00:09:45,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822316144] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:45,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:45,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:09:45,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525778165] [2022-07-14 00:09:45,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:45,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:09:45,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:09:45,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:09:45,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:09:45,661 INFO L87 Difference]: Start difference. First operand 1624 states and 2319 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2022-07-14 00:09:48,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:48,529 INFO L93 Difference]: Finished difference Result 3576 states and 5163 transitions. [2022-07-14 00:09:48,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:09:48,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 65 [2022-07-14 00:09:48,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:48,551 INFO L225 Difference]: With dead ends: 3576 [2022-07-14 00:09:48,552 INFO L226 Difference]: Without dead ends: 1971 [2022-07-14 00:09:48,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:09:48,561 INFO L413 NwaCegarLoop]: 1655 mSDtfsCounter, 451 mSDsluCounter, 6103 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 7758 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:48,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 7758 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-14 00:09:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2022-07-14 00:09:48,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1624. [2022-07-14 00:09:48,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1208 states have (on average 1.3733443708609272) internal successors, (1659), 1240 states have internal predecessors, (1659), 332 states have call successors, (332), 84 states have call predecessors, (332), 83 states have return successors, (327), 311 states have call predecessors, (327), 327 states have call successors, (327) [2022-07-14 00:09:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2318 transitions. [2022-07-14 00:09:48,642 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2318 transitions. Word has length 65 [2022-07-14 00:09:48,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:48,643 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2318 transitions. [2022-07-14 00:09:48,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2022-07-14 00:09:48,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2318 transitions. [2022-07-14 00:09:48,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-14 00:09:48,649 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:48,649 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:48,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-14 00:09:48,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:09:48,864 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:48,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:48,864 INFO L85 PathProgramCache]: Analyzing trace with hash 230807073, now seen corresponding path program 1 times [2022-07-14 00:09:48,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:09:48,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864550936] [2022-07-14 00:09:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:48,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:09:48,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:09:48,867 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:09:48,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 00:09:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:09:50,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:09:52,502 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-14 00:09:52,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:09:52,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:09:52,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864550936] [2022-07-14 00:09:52,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864550936] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:52,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:52,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:09:52,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095541875] [2022-07-14 00:09:52,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:52,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:09:52,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:09:52,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:09:52,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:09:52,505 INFO L87 Difference]: Start difference. First operand 1624 states and 2318 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:09:52,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:52,839 INFO L93 Difference]: Finished difference Result 4833 states and 7038 transitions. [2022-07-14 00:09:52,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:09:52,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 65 [2022-07-14 00:09:52,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:52,860 INFO L225 Difference]: With dead ends: 4833 [2022-07-14 00:09:52,860 INFO L226 Difference]: Without dead ends: 3228 [2022-07-14 00:09:52,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:09:52,868 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 1169 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 2655 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:52,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 2655 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:09:52,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2022-07-14 00:09:52,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3218. [2022-07-14 00:09:52,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 2397 states have (on average 1.3725490196078431) internal successors, (3290), 2457 states have internal predecessors, (3290), 655 states have call successors, (655), 166 states have call predecessors, (655), 165 states have return successors, (703), 618 states have call predecessors, (703), 650 states have call successors, (703) [2022-07-14 00:09:52,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 4648 transitions. [2022-07-14 00:09:52,999 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 4648 transitions. Word has length 65 [2022-07-14 00:09:53,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:53,001 INFO L495 AbstractCegarLoop]: Abstraction has 3218 states and 4648 transitions. [2022-07-14 00:09:53,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:09:53,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 4648 transitions. [2022-07-14 00:09:53,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-14 00:09:53,004 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:53,004 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:53,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:09:53,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:09:53,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:53,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:53,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1435282055, now seen corresponding path program 1 times [2022-07-14 00:09:53,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:09:53,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523716233] [2022-07-14 00:09:53,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:53,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:09:53,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:09:53,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:09:53,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 00:09:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:54,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:09:54,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:09:56,369 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-14 00:09:56,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:09:56,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:09:56,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523716233] [2022-07-14 00:09:56,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523716233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:56,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:56,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:09:56,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044138238] [2022-07-14 00:09:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:56,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:09:56,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:09:56,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:09:56,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:09:56,371 INFO L87 Difference]: Start difference. First operand 3218 states and 4648 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:09:56,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:56,718 INFO L93 Difference]: Finished difference Result 9607 states and 14192 transitions. [2022-07-14 00:09:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:09:56,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 66 [2022-07-14 00:09:56,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:56,751 INFO L225 Difference]: With dead ends: 9607 [2022-07-14 00:09:56,752 INFO L226 Difference]: Without dead ends: 6408 [2022-07-14 00:09:56,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:09:56,765 INFO L413 NwaCegarLoop]: 1383 mSDtfsCounter, 1159 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:56,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 2557 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:09:56,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6408 states. [2022-07-14 00:09:56,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6408 to 6399. [2022-07-14 00:09:56,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6399 states, 4768 states have (on average 1.36996644295302) internal successors, (6532), 4884 states have internal predecessors, (6532), 1301 states have call successors, (1301), 330 states have call predecessors, (1301), 329 states have return successors, (1513), 1232 states have call predecessors, (1513), 1296 states have call successors, (1513) [2022-07-14 00:09:56,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6399 states to 6399 states and 9346 transitions. [2022-07-14 00:09:56,996 INFO L78 Accepts]: Start accepts. Automaton has 6399 states and 9346 transitions. Word has length 66 [2022-07-14 00:09:56,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:56,996 INFO L495 AbstractCegarLoop]: Abstraction has 6399 states and 9346 transitions. [2022-07-14 00:09:56,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:09:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand 6399 states and 9346 transitions. [2022-07-14 00:09:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-14 00:09:56,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:56,998 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:57,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:09:57,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:09:57,220 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:57,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:57,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1544432604, now seen corresponding path program 1 times [2022-07-14 00:09:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:09:57,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126034515] [2022-07-14 00:09:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:57,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:09:57,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:09:57,222 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:09:57,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 00:09:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:58,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:09:58,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:09:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-14 00:09:59,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:09:59,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:09:59,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126034515] [2022-07-14 00:09:59,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126034515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:59,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:59,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:09:59,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127272724] [2022-07-14 00:09:59,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:59,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:09:59,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:09:59,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:09:59,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:09:59,197 INFO L87 Difference]: Start difference. First operand 6399 states and 9346 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:09:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:59,363 INFO L93 Difference]: Finished difference Result 6406 states and 9352 transitions. [2022-07-14 00:09:59,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:09:59,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 67 [2022-07-14 00:09:59,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:59,393 INFO L225 Difference]: With dead ends: 6406 [2022-07-14 00:09:59,394 INFO L226 Difference]: Without dead ends: 6403 [2022-07-14 00:09:59,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:09:59,398 INFO L413 NwaCegarLoop]: 1385 mSDtfsCounter, 1156 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:59,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 2558 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:09:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6403 states. [2022-07-14 00:09:59,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6403 to 6400. [2022-07-14 00:09:59,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6400 states, 4769 states have (on average 1.3698888655902706) internal successors, (6533), 4885 states have internal predecessors, (6533), 1301 states have call successors, (1301), 330 states have call predecessors, (1301), 329 states have return successors, (1513), 1232 states have call predecessors, (1513), 1296 states have call successors, (1513) [2022-07-14 00:09:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6400 states to 6400 states and 9347 transitions. [2022-07-14 00:09:59,629 INFO L78 Accepts]: Start accepts. Automaton has 6400 states and 9347 transitions. Word has length 67 [2022-07-14 00:09:59,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:59,629 INFO L495 AbstractCegarLoop]: Abstraction has 6400 states and 9347 transitions. [2022-07-14 00:09:59,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:09:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 6400 states and 9347 transitions. [2022-07-14 00:09:59,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-14 00:09:59,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:59,632 INFO L195 NwaCegarLoop]: 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, 1] [2022-07-14 00:09:59,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:09:59,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:09:59,856 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:59,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:59,856 INFO L85 PathProgramCache]: Analyzing trace with hash -633127460, now seen corresponding path program 1 times [2022-07-14 00:09:59,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:09:59,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183847358] [2022-07-14 00:09:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:59,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:09:59,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:09:59,858 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:09:59,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 00:10:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:00,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:10:00,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:10:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-14 00:10:01,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:10:01,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:10:01,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183847358] [2022-07-14 00:10:01,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183847358] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:01,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:01,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:10:01,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030714485] [2022-07-14 00:10:01,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:01,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:10:01,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:10:01,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:10:01,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:10:01,819 INFO L87 Difference]: Start difference. First operand 6400 states and 9347 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:10:01,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:01,909 INFO L93 Difference]: Finished difference Result 6402 states and 9348 transitions. [2022-07-14 00:10:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:10:01,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 68 [2022-07-14 00:10:01,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:01,954 INFO L225 Difference]: With dead ends: 6402 [2022-07-14 00:10:01,954 INFO L226 Difference]: Without dead ends: 6399 [2022-07-14 00:10:01,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:10:01,959 INFO L413 NwaCegarLoop]: 1197 mSDtfsCounter, 1145 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:01,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1145 Valid, 1197 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:10:01,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2022-07-14 00:10:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 6399. [2022-07-14 00:10:02,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6399 states, 4769 states have (on average 1.369679178024743) internal successors, (6532), 4884 states have internal predecessors, (6532), 1300 states have call successors, (1300), 330 states have call predecessors, (1300), 329 states have return successors, (1513), 1232 states have call predecessors, (1513), 1296 states have call successors, (1513) [2022-07-14 00:10:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6399 states to 6399 states and 9345 transitions. [2022-07-14 00:10:02,161 INFO L78 Accepts]: Start accepts. Automaton has 6399 states and 9345 transitions. Word has length 68 [2022-07-14 00:10:02,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:02,162 INFO L495 AbstractCegarLoop]: Abstraction has 6399 states and 9345 transitions. [2022-07-14 00:10:02,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:10:02,162 INFO L276 IsEmpty]: Start isEmpty. Operand 6399 states and 9345 transitions. [2022-07-14 00:10:02,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-14 00:10:02,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:02,165 INFO L195 NwaCegarLoop]: 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, 1, 1] [2022-07-14 00:10:02,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:10:02,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:10:02,376 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:02,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:02,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1847533095, now seen corresponding path program 1 times [2022-07-14 00:10:02,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:10:02,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343284424] [2022-07-14 00:10:02,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:02,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:10:02,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:10:02,378 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:10:02,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 00:10:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:03,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:10:03,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:10:04,260 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-14 00:10:04,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:10:04,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:10:04,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343284424] [2022-07-14 00:10:04,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343284424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:04,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:04,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:10:04,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072401450] [2022-07-14 00:10:04,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:04,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:10:04,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:10:04,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:10:04,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:10:04,262 INFO L87 Difference]: Start difference. First operand 6399 states and 9345 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:10:04,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:04,348 INFO L93 Difference]: Finished difference Result 6401 states and 9346 transitions. [2022-07-14 00:10:04,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:10:04,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 69 [2022-07-14 00:10:04,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:04,372 INFO L225 Difference]: With dead ends: 6401 [2022-07-14 00:10:04,373 INFO L226 Difference]: Without dead ends: 6369 [2022-07-14 00:10:04,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:10:04,379 INFO L413 NwaCegarLoop]: 1196 mSDtfsCounter, 1142 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:04,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:10:04,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6369 states. [2022-07-14 00:10:04,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6369 to 6369. [2022-07-14 00:10:04,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6369 states, 4742 states have (on average 1.3694643610291017) internal successors, (6494), 4856 states have internal predecessors, (6494), 1297 states have call successors, (1297), 330 states have call predecessors, (1297), 329 states have return successors, (1508), 1230 states have call predecessors, (1508), 1294 states have call successors, (1508) [2022-07-14 00:10:04,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6369 states to 6369 states and 9299 transitions. [2022-07-14 00:10:04,572 INFO L78 Accepts]: Start accepts. Automaton has 6369 states and 9299 transitions. Word has length 69 [2022-07-14 00:10:04,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:04,572 INFO L495 AbstractCegarLoop]: Abstraction has 6369 states and 9299 transitions. [2022-07-14 00:10:04,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:10:04,573 INFO L276 IsEmpty]: Start isEmpty. Operand 6369 states and 9299 transitions. [2022-07-14 00:10:04,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-14 00:10:04,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:04,577 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-07-14 00:10:04,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 00:10:04,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:10:04,791 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:04,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:04,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1553347695, now seen corresponding path program 1 times [2022-07-14 00:10:04,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:10:04,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220415132] [2022-07-14 00:10:04,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:04,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:10:04,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:10:04,794 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:10:04,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 00:10:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:05,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:10:05,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:10:05,769 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-14 00:10:05,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:10:05,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:10:05,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220415132] [2022-07-14 00:10:05,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220415132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:05,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:05,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:10:05,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107163402] [2022-07-14 00:10:05,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:05,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:10:05,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:10:05,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:10:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:10:05,771 INFO L87 Difference]: Start difference. First operand 6369 states and 9299 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:10:06,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:06,702 INFO L93 Difference]: Finished difference Result 17378 states and 25193 transitions. [2022-07-14 00:10:06,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:10:06,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-07-14 00:10:06,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:06,745 INFO L225 Difference]: With dead ends: 17378 [2022-07-14 00:10:06,746 INFO L226 Difference]: Without dead ends: 11026 [2022-07-14 00:10:06,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:10:06,766 INFO L413 NwaCegarLoop]: 1603 mSDtfsCounter, 872 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:06,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 2752 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 00:10:06,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11026 states. [2022-07-14 00:10:07,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11026 to 10995. [2022-07-14 00:10:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10995 states, 8148 states have (on average 1.359720176730486) internal successors, (11079), 8361 states have internal predecessors, (11079), 2224 states have call successors, (2224), 623 states have call predecessors, (2224), 622 states have return successors, (2573), 2098 states have call predecessors, (2573), 2221 states have call successors, (2573) [2022-07-14 00:10:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10995 states to 10995 states and 15876 transitions. [2022-07-14 00:10:07,105 INFO L78 Accepts]: Start accepts. Automaton has 10995 states and 15876 transitions. Word has length 102 [2022-07-14 00:10:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:07,105 INFO L495 AbstractCegarLoop]: Abstraction has 10995 states and 15876 transitions. [2022-07-14 00:10:07,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 00:10:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 10995 states and 15876 transitions. [2022-07-14 00:10:07,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-14 00:10:07,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:07,111 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-14 00:10:07,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 00:10:07,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:10:07,337 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:07,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:07,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1390336057, now seen corresponding path program 1 times [2022-07-14 00:10:07,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:10:07,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066970284] [2022-07-14 00:10:07,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:07,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:10:07,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:10:07,341 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:10:07,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 00:10:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:08,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:10:08,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:10:08,741 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-14 00:10:08,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:10:08,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:10:08,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066970284] [2022-07-14 00:10:08,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066970284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:08,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:08,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:10:08,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634051735] [2022-07-14 00:10:08,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:08,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:10:08,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:10:08,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:10:08,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:10:08,743 INFO L87 Difference]: Start difference. First operand 10995 states and 15876 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 00:10:09,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:09,941 INFO L93 Difference]: Finished difference Result 17890 states and 25738 transitions. [2022-07-14 00:10:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:10:09,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-07-14 00:10:09,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:09,970 INFO L225 Difference]: With dead ends: 17890 [2022-07-14 00:10:09,970 INFO L226 Difference]: Without dead ends: 6911 [2022-07-14 00:10:10,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:10:10,001 INFO L413 NwaCegarLoop]: 1194 mSDtfsCounter, 38 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:10,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4767 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-14 00:10:10,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6911 states. [2022-07-14 00:10:10,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6911 to 6795. [2022-07-14 00:10:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6795 states, 5036 states have (on average 1.3534551231135823) internal successors, (6816), 5171 states have internal predecessors, (6816), 1362 states have call successors, (1362), 397 states have call predecessors, (1362), 396 states have return successors, (1549), 1280 states have call predecessors, (1549), 1359 states have call successors, (1549) [2022-07-14 00:10:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6795 states to 6795 states and 9727 transitions. [2022-07-14 00:10:10,261 INFO L78 Accepts]: Start accepts. Automaton has 6795 states and 9727 transitions. Word has length 128 [2022-07-14 00:10:10,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:10,262 INFO L495 AbstractCegarLoop]: Abstraction has 6795 states and 9727 transitions. [2022-07-14 00:10:10,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 00:10:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 6795 states and 9727 transitions. [2022-07-14 00:10:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-14 00:10:10,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:10,268 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-07-14 00:10:10,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 00:10:10,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:10:10,479 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:10,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1851619390, now seen corresponding path program 1 times [2022-07-14 00:10:10,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:10:10,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108653600] [2022-07-14 00:10:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:10,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:10:10,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:10:10,482 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:10:10,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 00:10:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:11,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 00:10:11,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:10:11,913 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-14 00:10:11,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:10:11,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:10:11,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108653600] [2022-07-14 00:10:11,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108653600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:11,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:11,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:10:11,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822648118] [2022-07-14 00:10:11,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:11,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:10:11,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:10:11,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:10:11,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:10:11,916 INFO L87 Difference]: Start difference. First operand 6795 states and 9727 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 00:10:13,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:13,833 INFO L93 Difference]: Finished difference Result 12476 states and 17885 transitions. [2022-07-14 00:10:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:10:13,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2022-07-14 00:10:13,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:13,855 INFO L225 Difference]: With dead ends: 12476 [2022-07-14 00:10:13,856 INFO L226 Difference]: Without dead ends: 6809 [2022-07-14 00:10:13,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:10:13,870 INFO L413 NwaCegarLoop]: 1444 mSDtfsCounter, 435 mSDsluCounter, 5231 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 6675 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:13,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 6675 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-14 00:10:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6809 states. [2022-07-14 00:10:14,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6809 to 6795. [2022-07-14 00:10:14,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6795 states, 5036 states have (on average 1.3526608419380461) internal successors, (6812), 5171 states have internal predecessors, (6812), 1362 states have call successors, (1362), 397 states have call predecessors, (1362), 396 states have return successors, (1549), 1280 states have call predecessors, (1549), 1359 states have call successors, (1549) [2022-07-14 00:10:14,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6795 states to 6795 states and 9723 transitions. [2022-07-14 00:10:14,076 INFO L78 Accepts]: Start accepts. Automaton has 6795 states and 9723 transitions. Word has length 134 [2022-07-14 00:10:14,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:14,076 INFO L495 AbstractCegarLoop]: Abstraction has 6795 states and 9723 transitions. [2022-07-14 00:10:14,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 00:10:14,077 INFO L276 IsEmpty]: Start isEmpty. Operand 6795 states and 9723 transitions. [2022-07-14 00:10:14,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-14 00:10:14,082 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:14,082 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-07-14 00:10:14,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 00:10:14,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:10:14,299 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:14,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:14,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1774718592, now seen corresponding path program 1 times [2022-07-14 00:10:14,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:10:14,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962387806] [2022-07-14 00:10:14,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:14,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:10:14,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:10:14,302 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:10:14,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 00:10:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:15,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 00:10:15,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:10:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 00:10:15,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:10:15,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:10:15,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962387806] [2022-07-14 00:10:15,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962387806] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:15,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:15,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:10:15,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347461091] [2022-07-14 00:10:15,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:15,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:10:15,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:10:15,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:10:15,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:10:15,933 INFO L87 Difference]: Start difference. First operand 6795 states and 9723 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:10:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:16,256 INFO L93 Difference]: Finished difference Result 12514 states and 18007 transitions. [2022-07-14 00:10:16,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:10:16,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 134 [2022-07-14 00:10:16,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:16,282 INFO L225 Difference]: With dead ends: 12514 [2022-07-14 00:10:16,282 INFO L226 Difference]: Without dead ends: 6847 [2022-07-14 00:10:16,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:10:16,297 INFO L413 NwaCegarLoop]: 1203 mSDtfsCounter, 4 mSDsluCounter, 3588 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4791 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:16,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4791 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:10:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6847 states. [2022-07-14 00:10:16,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6847 to 6829. [2022-07-14 00:10:16,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6829 states, 5060 states have (on average 1.3517786561264822) internal successors, (6840), 5197 states have internal predecessors, (6840), 1366 states have call successors, (1366), 397 states have call predecessors, (1366), 402 states have return successors, (1589), 1288 states have call predecessors, (1589), 1363 states have call successors, (1589) [2022-07-14 00:10:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 9795 transitions. [2022-07-14 00:10:16,481 INFO L78 Accepts]: Start accepts. Automaton has 6829 states and 9795 transitions. Word has length 134 [2022-07-14 00:10:16,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:16,481 INFO L495 AbstractCegarLoop]: Abstraction has 6829 states and 9795 transitions. [2022-07-14 00:10:16,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:10:16,482 INFO L276 IsEmpty]: Start isEmpty. Operand 6829 states and 9795 transitions. [2022-07-14 00:10:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-14 00:10:16,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:16,490 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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] [2022-07-14 00:10:16,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 00:10:16,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:10:16,711 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:16,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:16,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1437416734, now seen corresponding path program 1 times [2022-07-14 00:10:16,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:10:16,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266689210] [2022-07-14 00:10:16,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:16,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:10:16,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:10:16,714 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:10:16,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 00:10:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:17,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1643 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:10:17,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:10:17,921 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-14 00:10:17,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:10:17,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:10:17,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266689210] [2022-07-14 00:10:17,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266689210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:17,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:17,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:10:17,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849859998] [2022-07-14 00:10:17,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:17,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:10:17,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:10:17,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:10:17,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:10:17,923 INFO L87 Difference]: Start difference. First operand 6829 states and 9795 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2022-07-14 00:10:18,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:18,294 INFO L93 Difference]: Finished difference Result 16616 states and 23824 transitions. [2022-07-14 00:10:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:10:18,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 138 [2022-07-14 00:10:18,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:18,325 INFO L225 Difference]: With dead ends: 16616 [2022-07-14 00:10:18,326 INFO L226 Difference]: Without dead ends: 9427 [2022-07-14 00:10:18,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:10:18,343 INFO L413 NwaCegarLoop]: 1748 mSDtfsCounter, 897 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2902 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 [2022-07-14 00:10:18,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 2902 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:10:18,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9427 states. [2022-07-14 00:10:18,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9427 to 9304. [2022-07-14 00:10:18,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9304 states, 6922 states have (on average 1.3550996821727825) internal successors, (9380), 7116 states have internal predecessors, (9380), 1814 states have call successors, (1814), 556 states have call predecessors, (1814), 567 states have return successors, (2172), 1693 states have call predecessors, (2172), 1811 states have call successors, (2172) [2022-07-14 00:10:18,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9304 states to 9304 states and 13366 transitions. [2022-07-14 00:10:18,603 INFO L78 Accepts]: Start accepts. Automaton has 9304 states and 13366 transitions. Word has length 138 [2022-07-14 00:10:18,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:18,603 INFO L495 AbstractCegarLoop]: Abstraction has 9304 states and 13366 transitions. [2022-07-14 00:10:18,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2022-07-14 00:10:18,604 INFO L276 IsEmpty]: Start isEmpty. Operand 9304 states and 13366 transitions. [2022-07-14 00:10:18,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-14 00:10:18,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:18,608 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-07-14 00:10:18,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 00:10:18,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:10:18,819 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:18,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:18,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1581890694, now seen corresponding path program 1 times [2022-07-14 00:10:18,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:10:18,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077914142] [2022-07-14 00:10:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:18,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:10:18,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:10:18,822 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:10:18,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 00:10:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:20,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-14 00:10:20,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:10:21,390 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 00:10:21,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:10:21,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:10:21,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077914142] [2022-07-14 00:10:21,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077914142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:21,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:21,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 00:10:21,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288175290] [2022-07-14 00:10:21,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:21,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:10:21,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:10:21,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:10:21,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:10:21,392 INFO L87 Difference]: Start difference. First operand 9304 states and 13366 transitions. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 00:10:29,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:29,477 INFO L93 Difference]: Finished difference Result 21756 states and 31871 transitions. [2022-07-14 00:10:29,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 00:10:29,478 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 140 [2022-07-14 00:10:29,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:29,517 INFO L225 Difference]: With dead ends: 21756 [2022-07-14 00:10:29,517 INFO L226 Difference]: Without dead ends: 12497 [2022-07-14 00:10:29,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:10:29,536 INFO L413 NwaCegarLoop]: 2337 mSDtfsCounter, 2563 mSDsluCounter, 20344 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2649 SdHoareTripleChecker+Valid, 22681 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:29,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2649 Valid, 22681 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-07-14 00:10:29,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12497 states. [2022-07-14 00:10:29,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12497 to 9288. [2022-07-14 00:10:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9288 states, 6906 states have (on average 1.3540399652476107) internal successors, (9351), 7101 states have internal predecessors, (9351), 1814 states have call successors, (1814), 556 states have call predecessors, (1814), 567 states have return successors, (2172), 1692 states have call predecessors, (2172), 1811 states have call successors, (2172) [2022-07-14 00:10:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9288 states to 9288 states and 13337 transitions. [2022-07-14 00:10:29,883 INFO L78 Accepts]: Start accepts. Automaton has 9288 states and 13337 transitions. Word has length 140 [2022-07-14 00:10:29,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:29,884 INFO L495 AbstractCegarLoop]: Abstraction has 9288 states and 13337 transitions. [2022-07-14 00:10:29,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 00:10:29,884 INFO L276 IsEmpty]: Start isEmpty. Operand 9288 states and 13337 transitions. [2022-07-14 00:10:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-14 00:10:29,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:29,890 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-14 00:10:29,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 00:10:30,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:10:30,103 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1703720375, now seen corresponding path program 1 times [2022-07-14 00:10:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:10:30,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579330379] [2022-07-14 00:10:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:30,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:10:30,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:10:30,108 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:10:30,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 00:10:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:10:31,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:10:31,641 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 00:10:31,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:10:31,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:10:31,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579330379] [2022-07-14 00:10:31,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579330379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:31,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:31,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:10:31,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885342434] [2022-07-14 00:10:31,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:31,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:10:31,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:10:31,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:10:31,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:10:31,642 INFO L87 Difference]: Start difference. First operand 9288 states and 13337 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 00:10:32,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:32,383 INFO L93 Difference]: Finished difference Result 23965 states and 35282 transitions. [2022-07-14 00:10:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:10:32,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2022-07-14 00:10:32,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:32,431 INFO L225 Difference]: With dead ends: 23965 [2022-07-14 00:10:32,432 INFO L226 Difference]: Without dead ends: 14722 [2022-07-14 00:10:32,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:10:32,458 INFO L413 NwaCegarLoop]: 1799 mSDtfsCounter, 1094 mSDsluCounter, 2989 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 4788 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:32,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 4788 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 00:10:32,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14722 states. [2022-07-14 00:10:32,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14722 to 9304. [2022-07-14 00:10:32,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9304 states, 6922 states have (on average 1.3532216122507945) internal successors, (9367), 7117 states have internal predecessors, (9367), 1814 states have call successors, (1814), 556 states have call predecessors, (1814), 567 states have return successors, (2172), 1692 states have call predecessors, (2172), 1811 states have call successors, (2172) [2022-07-14 00:10:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9304 states to 9304 states and 13353 transitions. [2022-07-14 00:10:32,907 INFO L78 Accepts]: Start accepts. Automaton has 9304 states and 13353 transitions. Word has length 161 [2022-07-14 00:10:32,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:32,907 INFO L495 AbstractCegarLoop]: Abstraction has 9304 states and 13353 transitions. [2022-07-14 00:10:32,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 00:10:32,907 INFO L276 IsEmpty]: Start isEmpty. Operand 9304 states and 13353 transitions. [2022-07-14 00:10:32,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-14 00:10:32,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:32,913 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 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] [2022-07-14 00:10:32,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-14 00:10:33,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:10:33,135 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:33,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:33,136 INFO L85 PathProgramCache]: Analyzing trace with hash 436590142, now seen corresponding path program 1 times [2022-07-14 00:10:33,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:10:33,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968688735] [2022-07-14 00:10:33,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:33,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:10:33,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:10:33,139 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:10:33,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process