./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.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 36ffbabf76f0a0e87302d8b80308134217d4fdef380ae154dfcdec710817c6e2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:46:04,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:46:04,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:46:05,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:46:05,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:46:05,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:46:05,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:46:05,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:46:05,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:46:05,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:46:05,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:46:05,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:46:05,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:46:05,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:46:05,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:46:05,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:46:05,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:46:05,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:46:05,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:46:05,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:46:05,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:46:05,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:46:05,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:46:05,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:46:05,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:46:05,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:46:05,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:46:05,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:46:05,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:46:05,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:46:05,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:46:05,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:46:05,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:46:05,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:46:05,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:46:05,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:46:05,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:46:05,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:46:05,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:46:05,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:46:05,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:46:05,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:46:05,100 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:46:05,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:46:05,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:46:05,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:46:05,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:46:05,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:46:05,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:46:05,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:46:05,103 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:46:05,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:46:05,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:46:05,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:46:05,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:46:05,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:46:05,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:46:05,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:46:05,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:46:05,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:46:05,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:46:05,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:46:05,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:46:05,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:46:05,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:46:05,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:46:05,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:46:05,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:46:05,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:46:05,108 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:46:05,109 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:46:05,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:46:05,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:46:05,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36ffbabf76f0a0e87302d8b80308134217d4fdef380ae154dfcdec710817c6e2 [2021-12-22 14:46:05,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:46:05,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:46:05,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:46:05,347 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:46:05,347 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:46:05,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-12-22 14:46:05,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4db915df/a5bcf18508624c44b4fefeb4be61eec8/FLAG5960bc80d [2021-12-22 14:46:06,185 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:46:06,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-12-22 14:46:06,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4db915df/a5bcf18508624c44b4fefeb4be61eec8/FLAG5960bc80d [2021-12-22 14:46:06,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4db915df/a5bcf18508624c44b4fefeb4be61eec8 [2021-12-22 14:46:06,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:46:06,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:46:06,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:46:06,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:46:06,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:46:06,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:46:06" (1/1) ... [2021-12-22 14:46:06,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd3061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:06, skipping insertion in model container [2021-12-22 14:46:06,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:46:06" (1/1) ... [2021-12-22 14:46:06,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:46:06,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:46:07,262 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-22 14:46:07,264 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2021-12-22 14:46:07,497 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2021-12-22 14:46:08,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:46:08,157 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:46:08,262 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-22 14:46:08,263 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2021-12-22 14:46:08,280 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2021-12-22 14:46:08,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:46:08,618 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:46:08,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08 WrapperNode [2021-12-22 14:46:08,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:46:08,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:46:08,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:46:08,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:46:08,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:08,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:08,917 INFO L137 Inliner]: procedures = 264, calls = 3505, calls flagged for inlining = 131, calls inlined = 111, statements flattened = 6309 [2021-12-22 14:46:08,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:46:08,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:46:08,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:46:08,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:46:08,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:08,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:08,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:08,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:09,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:09,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:09,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:09,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:46:09,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:46:09,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:46:09,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:46:09,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (1/1) ... [2021-12-22 14:46:09,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:46:09,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:46:09,180 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) [2021-12-22 14:46:09,200 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 [2021-12-22 14:46:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2021-12-22 14:46:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2021-12-22 14:46:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2021-12-22 14:46:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2021-12-22 14:46:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-12-22 14:46:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-22 14:46:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-22 14:46:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-22 14:46:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-22 14:46:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 14:46:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:46:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:46:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:46:09,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:46:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-22 14:46:09,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-22 14:46:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2021-12-22 14:46:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2021-12-22 14:46:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:46:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:46:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 14:46:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 14:46:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:46:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:46:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-22 14:46:09,218 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-22 14:46:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-22 14:46:09,218 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-22 14:46:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2021-12-22 14:46:09,218 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2021-12-22 14:46:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:46:09,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:46:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-22 14:46:09,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-22 14:46:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:46:09,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:46:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-22 14:46:09,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-22 14:46:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-22 14:46:09,220 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-22 14:46:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:46:09,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:46:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:46:09,221 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:46:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:46:09,221 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:46:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2021-12-22 14:46:09,221 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2021-12-22 14:46:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2021-12-22 14:46:09,221 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2021-12-22 14:46:09,222 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2021-12-22 14:46:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2021-12-22 14:46:09,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:46:09,223 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:46:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:46:09,224 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 14:46:09,224 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2021-12-22 14:46:09,224 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2021-12-22 14:46:09,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-22 14:46:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-22 14:46:09,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:46:09,225 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2021-12-22 14:46:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2021-12-22 14:46:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-22 14:46:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-22 14:46:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-22 14:46:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-22 14:46:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:46:09,227 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:46:09,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:46:09,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:46:09,227 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 14:46:09,227 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 14:46:09,227 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-22 14:46:09,228 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-22 14:46:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:46:09,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:46:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2021-12-22 14:46:09,228 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2021-12-22 14:46:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-22 14:46:09,228 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-22 14:46:09,229 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2021-12-22 14:46:09,229 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2021-12-22 14:46:09,229 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2021-12-22 14:46:09,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2021-12-22 14:46:09,229 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-22 14:46:09,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-22 14:46:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:46:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:46:09,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:46:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 14:46:09,231 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 14:46:09,231 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2021-12-22 14:46:09,231 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2021-12-22 14:46:09,231 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:46:09,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:46:09,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:46:09,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-22 14:46:09,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-22 14:46:09,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:46:09,233 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2021-12-22 14:46:09,233 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2021-12-22 14:46:09,233 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-22 14:46:09,233 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-22 14:46:09,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:46:09,233 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:46:09,233 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 14:46:09,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 14:46:09,234 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2021-12-22 14:46:09,234 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2021-12-22 14:46:09,234 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2021-12-22 14:46:09,234 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2021-12-22 14:46:09,234 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:46:09,235 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:46:09,236 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 14:46:09,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 14:46:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 14:46:09,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 14:46:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2021-12-22 14:46:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2021-12-22 14:46:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2021-12-22 14:46:09,240 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2021-12-22 14:46:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-22 14:46:09,240 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-22 14:46:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:46:09,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:46:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:46:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-22 14:46:09,245 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-22 14:46:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2021-12-22 14:46:09,245 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2021-12-22 14:46:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2021-12-22 14:46:09,245 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2021-12-22 14:46:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2021-12-22 14:46:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2021-12-22 14:46:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-22 14:46:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-22 14:46:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:46:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:46:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2021-12-22 14:46:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2021-12-22 14:46:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2021-12-22 14:46:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2021-12-22 14:46:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:46:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:46:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:46:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:46:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-22 14:46:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-22 14:46:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-22 14:46:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-22 14:46:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-22 14:46:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-22 14:46:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2021-12-22 14:46:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2021-12-22 14:46:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 14:46:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 14:46:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-22 14:46:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-22 14:46:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2021-12-22 14:46:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2021-12-22 14:46:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2021-12-22 14:46:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2021-12-22 14:46:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2021-12-22 14:46:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2021-12-22 14:46:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2021-12-22 14:46:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2021-12-22 14:46:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-22 14:46:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-22 14:46:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:46:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:46:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:46:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-22 14:46:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-22 14:46:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-22 14:46:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-22 14:46:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2021-12-22 14:46:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2021-12-22 14:46:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:46:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:46:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-22 14:46:09,252 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-22 14:46:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:46:09,252 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:46:09,837 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:46:09,840 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:46:10,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:46:19,309 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:46:19,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:46:19,332 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:46:19,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:46:19 BoogieIcfgContainer [2021-12-22 14:46:19,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:46:19,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:46:19,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:46:19,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:46:19,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:46:06" (1/3) ... [2021-12-22 14:46:19,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366576ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:46:19, skipping insertion in model container [2021-12-22 14:46:19,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:46:08" (2/3) ... [2021-12-22 14:46:19,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366576ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:46:19, skipping insertion in model container [2021-12-22 14:46:19,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:46:19" (3/3) ... [2021-12-22 14:46:19,343 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-12-22 14:46:19,347 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:46:19,347 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:46:19,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:46:19,405 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:46:19,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:46:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 1447 states, 1034 states have (on average 1.3375241779497098) internal successors, (1383), 1049 states have internal predecessors, (1383), 330 states have call successors, (330), 82 states have call predecessors, (330), 81 states have return successors, (322), 322 states have call predecessors, (322), 322 states have call successors, (322) [2021-12-22 14:46:19,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-22 14:46:19,486 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:46:19,486 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:46:19,487 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:46:19,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:46:19,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1676759204, now seen corresponding path program 1 times [2021-12-22 14:46:19,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:46:19,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377217966] [2021-12-22 14:46:19,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:46:19,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:46:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:46:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:46:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:46:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:46:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:46:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:46:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:46:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:46:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:46:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:46:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:46:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:46:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:46:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:46:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 14:46:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 14:46:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 14:46:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:46:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 14:46:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-22 14:46:20,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:46:20,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377217966] [2021-12-22 14:46:20,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377217966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:46:20,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:46:20,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:46:20,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167441378] [2021-12-22 14:46:20,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:46:20,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:46:20,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:46:20,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:46:20,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:46:20,410 INFO L87 Difference]: Start difference. First operand has 1447 states, 1034 states have (on average 1.3375241779497098) internal successors, (1383), 1049 states have internal predecessors, (1383), 330 states have call successors, (330), 82 states have call predecessors, (330), 81 states have return successors, (322), 322 states have call predecessors, (322), 322 states have call successors, (322) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-22 14:46:24,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:26,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:29,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:31,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:34,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:36,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:39,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:41,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:43,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:46:43,016 INFO L93 Difference]: Finished difference Result 4264 states and 6159 transitions. [2021-12-22 14:46:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:46:43,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 130 [2021-12-22 14:46:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:46:43,044 INFO L225 Difference]: With dead ends: 4264 [2021-12-22 14:46:43,045 INFO L226 Difference]: Without dead ends: 2781 [2021-12-22 14:46:43,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:46:43,059 INFO L933 BasicCegarLoop]: 2153 mSDtfsCounter, 2636 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 1513 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2868 SdHoareTripleChecker+Valid, 5730 SdHoareTripleChecker+Invalid, 3425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1513 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:46:43,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2868 Valid, 5730 Invalid, 3425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1513 Valid, 1904 Invalid, 8 Unknown, 0 Unchecked, 22.2s Time] [2021-12-22 14:46:43,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2021-12-22 14:46:43,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2690. [2021-12-22 14:46:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 1941 states have (on average 1.3312725399278722) internal successors, (2584), 1951 states have internal predecessors, (2584), 589 states have call successors, (589), 160 states have call predecessors, (589), 159 states have return successors, (588), 588 states have call predecessors, (588), 588 states have call successors, (588) [2021-12-22 14:46:43,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3761 transitions. [2021-12-22 14:46:43,243 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3761 transitions. Word has length 130 [2021-12-22 14:46:43,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:46:43,244 INFO L470 AbstractCegarLoop]: Abstraction has 2690 states and 3761 transitions. [2021-12-22 14:46:43,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-22 14:46:43,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3761 transitions. [2021-12-22 14:46:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-22 14:46:43,256 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:46:43,256 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:46:43,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:46:43,257 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:46:43,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:46:43,257 INFO L85 PathProgramCache]: Analyzing trace with hash -681871988, now seen corresponding path program 1 times [2021-12-22 14:46:43,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:46:43,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033307247] [2021-12-22 14:46:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:46:43,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:46:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:46:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:46:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:46:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:46:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:46:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:46:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:46:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:46:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:46:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:46:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:46:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:46:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:46:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:46:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 14:46:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 14:46:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 14:46:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:43,756 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-22 14:46:43,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:46:43,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033307247] [2021-12-22 14:46:43,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033307247] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:46:43,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:46:43,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:46:43,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628467118] [2021-12-22 14:46:43,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:46:43,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:46:43,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:46:43,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:46:43,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:46:43,760 INFO L87 Difference]: Start difference. First operand 2690 states and 3761 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 14:46:46,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:48,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:53,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:55,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:46:59,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:47:01,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:47:03,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:47:03,413 INFO L93 Difference]: Finished difference Result 7251 states and 10155 transitions. [2021-12-22 14:47:03,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 14:47:03,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2021-12-22 14:47:03,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:47:03,436 INFO L225 Difference]: With dead ends: 7251 [2021-12-22 14:47:03,436 INFO L226 Difference]: Without dead ends: 4594 [2021-12-22 14:47:03,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-22 14:47:03,446 INFO L933 BasicCegarLoop]: 2126 mSDtfsCounter, 2593 mSDsluCounter, 3816 mSDsCounter, 0 mSdLazyCounter, 3074 mSolverCounterSat, 1950 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 5942 SdHoareTripleChecker+Invalid, 5030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1950 IncrementalHoareTripleChecker+Valid, 3074 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:47:03,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2858 Valid, 5942 Invalid, 5030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1950 Valid, 3074 Invalid, 6 Unknown, 0 Unchecked, 19.3s Time] [2021-12-22 14:47:03,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-12-22 14:47:03,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4433. [2021-12-22 14:47:03,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 3174 states have (on average 1.316950220541903) internal successors, (4180), 3193 states have internal predecessors, (4180), 978 states have call successors, (978), 281 states have call predecessors, (978), 280 states have return successors, (977), 976 states have call predecessors, (977), 977 states have call successors, (977) [2021-12-22 14:47:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6135 transitions. [2021-12-22 14:47:03,589 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6135 transitions. Word has length 130 [2021-12-22 14:47:03,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:47:03,591 INFO L470 AbstractCegarLoop]: Abstraction has 4433 states and 6135 transitions. [2021-12-22 14:47:03,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 14:47:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6135 transitions. [2021-12-22 14:47:03,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-22 14:47:03,593 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:47:03,594 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:47:03,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:47:03,594 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:47:03,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:47:03,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2103859548, now seen corresponding path program 1 times [2021-12-22 14:47:03,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:47:03,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759864640] [2021-12-22 14:47:03,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:47:03,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:47:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:03,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:47:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:47:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:03,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:47:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:47:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:47:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:03,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:47:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:03,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:47:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:47:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:47:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:47:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:47:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:47:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:47:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:47:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 14:47:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 14:47:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:47:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:47:04,107 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-22 14:47:04,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:47:04,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759864640] [2021-12-22 14:47:04,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759864640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:47:04,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:47:04,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:47:04,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723176186] [2021-12-22 14:47:04,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:47:04,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:47:04,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:47:04,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:47:04,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:47:04,111 INFO L87 Difference]: Start difference. First operand 4433 states and 6135 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 14:47:06,488 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 []