./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 ae007674 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-ae00767 [2021-12-28 04:04:22,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:04:22,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:04:22,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:04:22,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:04:22,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:04:22,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:04:22,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:04:22,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:04:22,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:04:22,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:04:22,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:04:22,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:04:22,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:04:22,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:04:22,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:04:22,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:04:22,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:04:22,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:04:22,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:04:22,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:04:22,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:04:22,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:04:22,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:04:22,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:04:22,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:04:22,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:04:22,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:04:22,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:04:22,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:04:22,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:04:22,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:04:22,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:04:22,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:04:22,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:04:22,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:04:22,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:04:22,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:04:22,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:04:22,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:04:22,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:04:22,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:04:22,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:04:22,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:04:22,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:04:22,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:04:22,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:04:22,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:04:22,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:04:22,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:04:22,172 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:04:22,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:04:22,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:04:22,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:04:22,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:04:22,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:04:22,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:04:22,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:04:22,174 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:04:22,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:04:22,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:04:22,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:04:22,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:04:22,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:04:22,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:04:22,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:04:22,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:04:22,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:04:22,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:04:22,175 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:04:22,176 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:04:22,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:04:22,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36ffbabf76f0a0e87302d8b80308134217d4fdef380ae154dfcdec710817c6e2 [2021-12-28 04:04:22,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:04:22,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:04:22,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:04:22,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:04:22,452 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:04:22,453 INFO L432 ainManager$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 [2021-12-28 04:04:22,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f46e1d1d/1a8625cb21c64aa6ae30e35fdfab7593/FLAGf3eb765bc [2021-12-28 04:04:23,127 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:04:23,130 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 [2021-12-28 04:04:23,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f46e1d1d/1a8625cb21c64aa6ae30e35fdfab7593/FLAGf3eb765bc [2021-12-28 04:04:23,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f46e1d1d/1a8625cb21c64aa6ae30e35fdfab7593 [2021-12-28 04:04:23,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:04:23,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:04:23,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:04:23,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:04:23,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:04:23,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:04:23" (1/1) ... [2021-12-28 04:04:23,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d3a0282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:23, skipping insertion in model container [2021-12-28 04:04:23,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:04:23" (1/1) ... [2021-12-28 04:04:23,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:04:23,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:04:23,904 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-28 04:04:23,904 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] [2021-12-28 04:04:24,081 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] [2021-12-28 04:04:24,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:04:24,572 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:04:24,635 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-28 04:04:24,636 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] [2021-12-28 04:04:24,653 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] [2021-12-28 04:04:24,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:04:25,002 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:04:25,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25 WrapperNode [2021-12-28 04:04:25,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:04:25,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:04:25,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:04:25,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:04:25,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,273 INFO L137 Inliner]: procedures = 264, calls = 3505, calls flagged for inlining = 131, calls inlined = 111, statements flattened = 6309 [2021-12-28 04:04:25,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:04:25,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:04:25,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:04:25,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:04:25,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:04:25,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:04:25,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:04:25,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:04:25,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (1/1) ... [2021-12-28 04:04:25,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:04:25,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:04:25,640 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) [2021-12-28 04:04:25,665 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 [2021-12-28 04:04:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2021-12-28 04:04:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2021-12-28 04:04:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2021-12-28 04:04:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2021-12-28 04:04:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-12-28 04:04:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-28 04:04:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-28 04:04:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-28 04:04:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-28 04:04:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-28 04:04:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:04:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:04:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:04:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:04:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-28 04:04:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-28 04:04:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2021-12-28 04:04:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2021-12-28 04:04:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 04:04:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 04:04:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:04:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:04:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:04:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:04:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-28 04:04:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-28 04:04:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-28 04:04:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-28 04:04:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2021-12-28 04:04:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2021-12-28 04:04:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:04:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:04:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-28 04:04:25,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-28 04:04:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:04:25,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:04:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-28 04:04:25,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-28 04:04:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-28 04:04:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-28 04:04:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:04:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:04:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:04:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:04:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:04:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:04:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2021-12-28 04:04:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2021-12-28 04:04:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2021-12-28 04:04:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2021-12-28 04:04:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2021-12-28 04:04:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2021-12-28 04:04:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:04:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:04:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:04:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-28 04:04:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2021-12-28 04:04:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2021-12-28 04:04:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-28 04:04:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-28 04:04:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:04:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2021-12-28 04:04:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2021-12-28 04:04:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-28 04:04:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-28 04:04:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:04:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:04:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:04:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:04:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:04:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:04:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 04:04:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 04:04:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-28 04:04:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-28 04:04:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 04:04:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 04:04:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2021-12-28 04:04:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2021-12-28 04:04:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-28 04:04:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-28 04:04:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2021-12-28 04:04:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2021-12-28 04:04:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2021-12-28 04:04:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2021-12-28 04:04:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-28 04:04:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-28 04:04:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:04:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 04:04:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 04:04:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 04:04:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 04:04:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2021-12-28 04:04:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2021-12-28 04:04:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:04:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:04:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:04:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-28 04:04:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-28 04:04:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:04:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2021-12-28 04:04:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2021-12-28 04:04:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-28 04:04:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-28 04:04:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:04:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:04:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-28 04:04:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-28 04:04:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2021-12-28 04:04:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2021-12-28 04:04:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2021-12-28 04:04:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2021-12-28 04:04:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 04:04:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 04:04:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-28 04:04:25,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-28 04:04:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:04:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:04:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2021-12-28 04:04:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2021-12-28 04:04:25,701 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2021-12-28 04:04:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2021-12-28 04:04:25,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-28 04:04:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-28 04:04:25,702 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:04:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:04:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:04:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-28 04:04:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-28 04:04:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2021-12-28 04:04:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2021-12-28 04:04:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2021-12-28 04:04:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2021-12-28 04:04:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2021-12-28 04:04:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2021-12-28 04:04:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 04:04:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 04:04:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:04:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:04:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2021-12-28 04:04:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2021-12-28 04:04:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2021-12-28 04:04:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2021-12-28 04:04:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:04:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:04:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:04:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:04:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-28 04:04:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-28 04:04:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 04:04:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 04:04:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-28 04:04:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-28 04:04:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2021-12-28 04:04:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2021-12-28 04:04:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 04:04:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 04:04:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-28 04:04:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-28 04:04:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2021-12-28 04:04:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2021-12-28 04:04:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2021-12-28 04:04:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2021-12-28 04:04:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2021-12-28 04:04:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2021-12-28 04:04:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2021-12-28 04:04:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2021-12-28 04:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-28 04:04:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-28 04:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 04:04:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 04:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-28 04:04:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-28 04:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-28 04:04:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-28 04:04:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2021-12-28 04:04:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2021-12-28 04:04:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:04:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:04:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-28 04:04:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-28 04:04:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 04:04:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 04:04:26,295 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:04:26,297 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:04:26,519 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:04:34,636 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:04:34,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:04:34,658 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:04:34,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:04:34 BoogieIcfgContainer [2021-12-28 04:04:34,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:04:34,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:04:34,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:04:34,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:04:34,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:04:23" (1/3) ... [2021-12-28 04:04:34,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be0bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:04:34, skipping insertion in model container [2021-12-28 04:04:34,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:04:25" (2/3) ... [2021-12-28 04:04:34,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be0bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:04:34, skipping insertion in model container [2021-12-28 04:04:34,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:04:34" (3/3) ... [2021-12-28 04:04:34,666 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 [2021-12-28 04:04:34,670 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:04:34,670 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:04:34,715 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:04:34,719 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 [2021-12-28 04:04:34,719 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:04:34,746 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) [2021-12-28 04:04:34,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-28 04:04:34,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:04:34,765 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] [2021-12-28 04:04:34,765 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:04:34,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:04:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1676759204, now seen corresponding path program 1 times [2021-12-28 04:04:34,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:04:34,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251927164] [2021-12-28 04:04:34,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:04:34,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:04:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:04:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:04:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:04:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:04:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:04:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:04:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 04:04:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 04:04:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:04:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:04:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:04:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 04:04:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 04:04:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:04:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:04:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:04:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 04:04:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:04:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:04:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-28 04:04:35,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:04:35,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251927164] [2021-12-28 04:04:35,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251927164] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:04:35,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:04:35,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:04:35,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646134397] [2021-12-28 04:04:35,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:04:35,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:04:35,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:04:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:04:35,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:04:35,497 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) [2021-12-28 04:04:39,463 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 [] [2021-12-28 04:04:41,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:43,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:46,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:49,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:51,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:53,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:55,894 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 [] [2021-12-28 04:04:57,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:04:57,774 INFO L93 Difference]: Finished difference Result 4264 states and 6159 transitions. [2021-12-28 04:04:57,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:04:57,777 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 [2021-12-28 04:04:57,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:04:57,817 INFO L225 Difference]: With dead ends: 4264 [2021-12-28 04:04:57,817 INFO L226 Difference]: Without dead ends: 2781 [2021-12-28 04:04:57,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:04:57,841 INFO L933 BasicCegarLoop]: 2150 mSDtfsCounter, 2636 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 1513 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2869 SdHoareTripleChecker+Valid, 5481 SdHoareTripleChecker+Invalid, 3663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1513 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:04:57,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2869 Valid, 5481 Invalid, 3663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1513 Valid, 2142 Invalid, 8 Unknown, 0 Unchecked, 21.9s Time] [2021-12-28 04:04:57,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2021-12-28 04:04:58,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2690. [2021-12-28 04:04:58,020 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) [2021-12-28 04:04:58,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3761 transitions. [2021-12-28 04:04:58,037 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3761 transitions. Word has length 130 [2021-12-28 04:04:58,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:04:58,037 INFO L470 AbstractCegarLoop]: Abstraction has 2690 states and 3761 transitions. [2021-12-28 04:04:58,038 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) [2021-12-28 04:04:58,038 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3761 transitions. [2021-12-28 04:04:58,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-28 04:04:58,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:04:58,047 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] [2021-12-28 04:04:58,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:04:58,047 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:04:58,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:04:58,048 INFO L85 PathProgramCache]: Analyzing trace with hash -681871988, now seen corresponding path program 1 times [2021-12-28 04:04:58,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:04:58,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405209136] [2021-12-28 04:04:58,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:04:58,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:04:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:04:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:04:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:04:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:04:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:04:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:04:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 04:04:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 04:04:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:04:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:04:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:04:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 04:04:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 04:04:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:04:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:04:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 04:04:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:04:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-28 04:04:58,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:04:58,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405209136] [2021-12-28 04:04:58,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405209136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:04:58,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:04:58,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:04:58,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043407560] [2021-12-28 04:04:58,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:04:58,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:04:58,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:04:58,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:04:58,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:04:58,468 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) [2021-12-28 04:05:01,296 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 [] [2021-12-28 04:05:03,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:05:06,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:05:08,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:05:12,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:05:14,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:05:17,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:05:19,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:05:22,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:05:22,142 INFO L93 Difference]: Finished difference Result 7251 states and 10155 transitions. [2021-12-28 04:05:22,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 04:05:22,143 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 [2021-12-28 04:05:22,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:05:22,164 INFO L225 Difference]: With dead ends: 7251 [2021-12-28 04:05:22,164 INFO L226 Difference]: Without dead ends: 4594 [2021-12-28 04:05:22,173 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 [2021-12-28 04:05:22,174 INFO L933 BasicCegarLoop]: 2126 mSDtfsCounter, 2593 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 1950 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 5532 SdHoareTripleChecker+Invalid, 5442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1950 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:05:22,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2858 Valid, 5532 Invalid, 5442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1950 Valid, 3484 Invalid, 8 Unknown, 0 Unchecked, 23.3s Time] [2021-12-28 04:05:22,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-12-28 04:05:22,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4433. [2021-12-28 04:05:22,289 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) [2021-12-28 04:05:22,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6135 transitions. [2021-12-28 04:05:22,304 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6135 transitions. Word has length 130 [2021-12-28 04:05:22,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:05:22,305 INFO L470 AbstractCegarLoop]: Abstraction has 4433 states and 6135 transitions. [2021-12-28 04:05:22,305 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) [2021-12-28 04:05:22,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6135 transitions. [2021-12-28 04:05:22,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-28 04:05:22,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:05:22,309 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] [2021-12-28 04:05:22,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:05:22,309 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:05:22,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:05:22,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2103859548, now seen corresponding path program 1 times [2021-12-28 04:05:22,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:05:22,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398943480] [2021-12-28 04:05:22,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:05:22,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:05:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:05:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:05:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:05:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:05:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:05:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:05:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 04:05:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 04:05:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:05:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:05:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:05:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 04:05:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 04:05:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:05:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:05:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:05:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 04:05:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-28 04:05:22,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:05:22,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398943480] [2021-12-28 04:05:22,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398943480] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:05:22,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:05:22,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:05:22,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086201524] [2021-12-28 04:05:22,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:05:22,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:05:22,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:05:22,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:05:22,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:05:22,695 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) [2021-12-28 04:05:25,047 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 [] [2021-12-28 04:05:27,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:05:30,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []