./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 04:06:06,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:06:06,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:06:06,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:06:06,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:06:06,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:06:06,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:06:06,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:06:06,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:06:06,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:06:06,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:06:06,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:06:06,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:06:06,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:06:06,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:06:06,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:06:06,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:06:06,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:06:06,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:06:06,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:06:06,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:06:06,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:06:06,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:06:06,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:06:06,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:06:06,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:06:06,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:06:06,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:06:06,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:06:06,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:06:06,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:06:06,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:06:06,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:06:06,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:06:06,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:06:06,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:06:06,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:06:06,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:06:06,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:06:06,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:06:06,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:06:06,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:06:06,714 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:06:06,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:06:06,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:06:06,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:06:06,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:06:06,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:06:06,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:06:06,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:06:06,717 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:06:06,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:06:06,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:06:06,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:06:06,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:06:06,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:06:06,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:06:06,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:06:06,720 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:06:06,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:06:06,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:06:06,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:06:06,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:06:06,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:06:06,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:06:06,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:06:06,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:06:06,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:06:06,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:06:06,722 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:06:06,722 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:06:06,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:06:06,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:06:06,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36ffbabf76f0a0e87302d8b80308134217d4fdef380ae154dfcdec710817c6e2 [2021-12-16 04:06:06,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:06:06,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:06:06,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:06:06,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:06:06,957 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:06:06,958 INFO L432 ainManager$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 [2021-12-16 04:06:07,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be0c37c3/ea3017c871d649f6abef78f021895169/FLAG8b9db68da [2021-12-16 04:06:07,721 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:06:07,721 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 [2021-12-16 04:06:07,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be0c37c3/ea3017c871d649f6abef78f021895169/FLAG8b9db68da [2021-12-16 04:06:08,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be0c37c3/ea3017c871d649f6abef78f021895169 [2021-12-16 04:06:08,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:06:08,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:06:08,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:06:08,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:06:08,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:06:08,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:06:08" (1/1) ... [2021-12-16 04:06:08,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d871de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:08, skipping insertion in model container [2021-12-16 04:06:08,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:06:08" (1/1) ... [2021-12-16 04:06:08,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:06:08,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:06:08,523 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-16 04:06:08,535 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] [2021-12-16 04:06:08,935 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] [2021-12-16 04:06:09,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:06:10,021 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:06:10,090 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-16 04:06:10,092 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] [2021-12-16 04:06:10,108 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] [2021-12-16 04:06:10,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:06:10,459 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:06:10,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10 WrapperNode [2021-12-16 04:06:10,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:06:10,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:06:10,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:06:10,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:06:10,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:10,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:10,759 INFO L137 Inliner]: procedures = 264, calls = 3505, calls flagged for inlining = 131, calls inlined = 111, statements flattened = 6309 [2021-12-16 04:06:10,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:06:10,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:06:10,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:06:10,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:06:10,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:10,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:10,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:10,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:10,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:10,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:10,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:11,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:06:11,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:06:11,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:06:11,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:06:11,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (1/1) ... [2021-12-16 04:06:11,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:06:11,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:06:11,036 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) [2021-12-16 04:06:11,097 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 [2021-12-16 04:06:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2021-12-16 04:06:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2021-12-16 04:06:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2021-12-16 04:06:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2021-12-16 04:06:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-12-16 04:06:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-16 04:06:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-16 04:06:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-16 04:06:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-16 04:06:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-16 04:06:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:06:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:06:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:06:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:06:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-16 04:06:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-16 04:06:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2021-12-16 04:06:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2021-12-16 04:06:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-16 04:06:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-16 04:06:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:06:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:06:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:06:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:06:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-16 04:06:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-16 04:06:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-16 04:06:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-16 04:06:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2021-12-16 04:06:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2021-12-16 04:06:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 04:06:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 04:06:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-16 04:06:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-16 04:06:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:06:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:06:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-16 04:06:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-16 04:06:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-16 04:06:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-16 04:06:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:06:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:06:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:06:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:06:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 04:06:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 04:06:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2021-12-16 04:06:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2021-12-16 04:06:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2021-12-16 04:06:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2021-12-16 04:06:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2021-12-16 04:06:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2021-12-16 04:06:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:06:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 04:06:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 04:06:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-16 04:06:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2021-12-16 04:06:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2021-12-16 04:06:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-16 04:06:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-16 04:06:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:06:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2021-12-16 04:06:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2021-12-16 04:06:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-16 04:06:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-16 04:06:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 04:06:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 04:06:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:06:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:06:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:06:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:06:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-16 04:06:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-16 04:06:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-16 04:06:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-16 04:06:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-16 04:06:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-16 04:06:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2021-12-16 04:06:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2021-12-16 04:06:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-16 04:06:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-16 04:06:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2021-12-16 04:06:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2021-12-16 04:06:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2021-12-16 04:06:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2021-12-16 04:06:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-16 04:06:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-16 04:06:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:06:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 04:06:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 04:06:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-16 04:06:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-16 04:06:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2021-12-16 04:06:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2021-12-16 04:06:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 04:06:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 04:06:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:06:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-16 04:06:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-16 04:06:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:06:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2021-12-16 04:06:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2021-12-16 04:06:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-16 04:06:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-16 04:06:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 04:06:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 04:06:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-16 04:06:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-16 04:06:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2021-12-16 04:06:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2021-12-16 04:06:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2021-12-16 04:06:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2021-12-16 04:06:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 04:06:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 04:06:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-16 04:06:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-16 04:06:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:06:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:06:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2021-12-16 04:06:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2021-12-16 04:06:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2021-12-16 04:06:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2021-12-16 04:06:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-16 04:06:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-16 04:06:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:06:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:06:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:06:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-16 04:06:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-16 04:06:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2021-12-16 04:06:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2021-12-16 04:06:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2021-12-16 04:06:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2021-12-16 04:06:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2021-12-16 04:06:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2021-12-16 04:06:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-16 04:06:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-16 04:06:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:06:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:06:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2021-12-16 04:06:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2021-12-16 04:06:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2021-12-16 04:06:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2021-12-16 04:06:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:06:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:06:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:06:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 04:06:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-16 04:06:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-16 04:06:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-16 04:06:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-16 04:06:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-16 04:06:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-16 04:06:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2021-12-16 04:06:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2021-12-16 04:06:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-16 04:06:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-16 04:06:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-16 04:06:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-16 04:06:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2021-12-16 04:06:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2021-12-16 04:06:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2021-12-16 04:06:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2021-12-16 04:06:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2021-12-16 04:06:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2021-12-16 04:06:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2021-12-16 04:06:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2021-12-16 04:06:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-16 04:06:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-16 04:06:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 04:06:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 04:06:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:06:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-16 04:06:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-16 04:06:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-16 04:06:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-16 04:06:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2021-12-16 04:06:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2021-12-16 04:06:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:06:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:06:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-16 04:06:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-16 04:06:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-16 04:06:11,155 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-16 04:06:11,784 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:06:11,787 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:06:11,983 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:06:20,569 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:06:20,593 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:06:20,594 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:06:20,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:06:20 BoogieIcfgContainer [2021-12-16 04:06:20,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:06:20,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:06:20,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:06:20,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:06:20,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:06:08" (1/3) ... [2021-12-16 04:06:20,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e01cbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:06:20, skipping insertion in model container [2021-12-16 04:06:20,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:06:10" (2/3) ... [2021-12-16 04:06:20,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e01cbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:06:20, skipping insertion in model container [2021-12-16 04:06:20,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:06:20" (3/3) ... [2021-12-16 04:06:20,606 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 [2021-12-16 04:06:20,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:06:20,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:06:20,666 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:06:20,673 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 [2021-12-16 04:06:20,674 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:06:20,729 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) [2021-12-16 04:06:20,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-16 04:06:20,752 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:06:20,753 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] [2021-12-16 04:06:20,753 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:06:20,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:06:20,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1676759204, now seen corresponding path program 1 times [2021-12-16 04:06:20,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:06:20,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392942645] [2021-12-16 04:06:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:06:20,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:06:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:06:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:06:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:06:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:06:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:06:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:06:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 04:06:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 04:06:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:06:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 04:06:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 04:06:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 04:06:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 04:06:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:06:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 04:06:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:06:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 04:06:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 04:06:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:06:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-16 04:06:21,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:06:21,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392942645] [2021-12-16 04:06:21,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392942645] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:06:21,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:06:21,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:06:21,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625483633] [2021-12-16 04:06:21,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:06:21,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:06:21,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:06:21,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:06:21,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:06:21,749 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) [2021-12-16 04:06:26,627 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 [] [2021-12-16 04:06:28,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:31,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:33,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:36,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:38,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:41,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:43,312 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 [] [2021-12-16 04:06:45,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:06:45,447 INFO L93 Difference]: Finished difference Result 4264 states and 6159 transitions. [2021-12-16 04:06:45,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:06:45,450 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 [2021-12-16 04:06:45,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:06:45,489 INFO L225 Difference]: With dead ends: 4264 [2021-12-16 04:06:45,489 INFO L226 Difference]: Without dead ends: 2781 [2021-12-16 04:06:45,498 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 [2021-12-16 04:06:45,501 INFO L933 BasicCegarLoop]: 2152 mSDtfsCounter, 2636 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 1513 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2869 SdHoareTripleChecker+Valid, 5729 SdHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1513 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:06:45,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2869 Valid, 5729 Invalid, 3423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1513 Valid, 1902 Invalid, 8 Unknown, 0 Unchecked, 23.3s Time] [2021-12-16 04:06:45,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2021-12-16 04:06:45,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2690. [2021-12-16 04:06:45,717 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) [2021-12-16 04:06:45,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3761 transitions. [2021-12-16 04:06:45,737 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3761 transitions. Word has length 130 [2021-12-16 04:06:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:06:45,738 INFO L470 AbstractCegarLoop]: Abstraction has 2690 states and 3761 transitions. [2021-12-16 04:06:45,739 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) [2021-12-16 04:06:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3761 transitions. [2021-12-16 04:06:45,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-16 04:06:45,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:06:45,748 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] [2021-12-16 04:06:45,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:06:45,749 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:06:45,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:06:45,750 INFO L85 PathProgramCache]: Analyzing trace with hash -681871988, now seen corresponding path program 1 times [2021-12-16 04:06:45,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:06:45,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928156187] [2021-12-16 04:06:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:06:45,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:06:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:06:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:06:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:06:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:06:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:06:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:06:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 04:06:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 04:06:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:06:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 04:06:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 04:06:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 04:06:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 04:06:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:06:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 04:06:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 04:06:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:06:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-16 04:06:46,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:06:46,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928156187] [2021-12-16 04:06:46,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928156187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:06:46,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:06:46,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:06:46,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609732791] [2021-12-16 04:06:46,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:06:46,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:06:46,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:06:46,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:06:46,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:06:46,262 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) [2021-12-16 04:06:49,599 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 [] [2021-12-16 04:06:51,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:55,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:06:58,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:07:00,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:07:05,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:07:07,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []