./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:51:51,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:51:51,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:51:51,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:51:51,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:51:51,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:51:51,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:51:51,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:51:51,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:51:51,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:51:51,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:51:51,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:51:51,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:51:51,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:51:51,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:51:51,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:51:51,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:51:51,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:51:51,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:51:51,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:51:51,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:51:51,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:51:51,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:51:51,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:51:51,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:51:51,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:51:51,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:51:51,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:51:51,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:51:51,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:51:51,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:51:51,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:51:51,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:51:51,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:51:51,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:51:51,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:51:51,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:51:51,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:51:51,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:51:51,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:51:51,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:51:51,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:51:51,777 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:51:51,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:51:51,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:51:51,781 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:51:51,782 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:51:51,782 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:51:51,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:51:51,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:51:51,783 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:51:51,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:51:51,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:51:51,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:51:51,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:51:51,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:51:51,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:51:51,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:51:51,785 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:51:51,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:51:51,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:51:51,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:51:51,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:51:51,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:51:51,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:51:51,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:51:51,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:51:51,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:51:51,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:51:51,789 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:51:51,789 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:51:51,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:51:51,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:51:51,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36ffbabf76f0a0e87302d8b80308134217d4fdef380ae154dfcdec710817c6e2 [2021-12-14 17:51:52,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:51:52,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:51:52,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:51:52,041 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:51:52,042 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:51:52,043 INFO L432 ainManager$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 [2021-12-14 17:51:52,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdd7dd616/2c38f8a953c04ae98e57525089822777/FLAG483f3b1b3 [2021-12-14 17:51:52,813 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:51:52,813 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 [2021-12-14 17:51:52,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdd7dd616/2c38f8a953c04ae98e57525089822777/FLAG483f3b1b3 [2021-12-14 17:51:52,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdd7dd616/2c38f8a953c04ae98e57525089822777 [2021-12-14 17:51:52,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:51:52,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:51:52,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:51:52,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:51:52,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:51:52,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:51:52" (1/1) ... [2021-12-14 17:51:52,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48984754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:52, skipping insertion in model container [2021-12-14 17:51:52,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:51:52" (1/1) ... [2021-12-14 17:51:52,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:51:53,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:51:53,415 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-14 17:51:53,415 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] [2021-12-14 17:51:53,738 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] [2021-12-14 17:51:54,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:51:54,555 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:51:54,631 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-14 17:51:54,633 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] [2021-12-14 17:51:54,648 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] [2021-12-14 17:51:54,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:51:54,973 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:51:54,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54 WrapperNode [2021-12-14 17:51:54,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:51:54,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:51:54,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:51:54,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:51:54,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,253 INFO L137 Inliner]: procedures = 264, calls = 3505, calls flagged for inlining = 131, calls inlined = 111, statements flattened = 6309 [2021-12-14 17:51:55,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:51:55,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:51:55,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:51:55,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:51:55,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:51:55,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:51:55,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:51:55,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:51:55,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (1/1) ... [2021-12-14 17:51:55,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:51:55,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:51:55,593 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) [2021-12-14 17:51:55,597 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 [2021-12-14 17:51:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2021-12-14 17:51:55,628 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2021-12-14 17:51:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2021-12-14 17:51:55,628 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2021-12-14 17:51:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-12-14 17:51:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-14 17:51:55,629 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-14 17:51:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-14 17:51:55,629 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-14 17:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 17:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:51:55,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-14 17:51:55,630 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-14 17:51:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2021-12-14 17:51:55,631 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2021-12-14 17:51:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:51:55,631 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:51:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 17:51:55,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 17:51:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:51:55,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:51:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-14 17:51:55,632 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-14 17:51:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-14 17:51:55,632 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-14 17:51:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2021-12-14 17:51:55,632 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2021-12-14 17:51:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:51:55,633 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:51:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-14 17:51:55,633 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-14 17:51:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:51:55,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:51:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-14 17:51:55,634 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-14 17:51:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-14 17:51:55,634 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-14 17:51:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:51:55,635 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:51:55,635 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:51:55,636 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:51:55,636 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:51:55,636 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:51:55,636 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2021-12-14 17:51:55,636 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2021-12-14 17:51:55,636 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2021-12-14 17:51:55,636 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2021-12-14 17:51:55,637 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2021-12-14 17:51:55,637 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2021-12-14 17:51:55,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:51:55,638 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:51:55,638 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:51:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-14 17:51:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2021-12-14 17:51:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2021-12-14 17:51:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-14 17:51:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-14 17:51:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:51:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2021-12-14 17:51:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2021-12-14 17:51:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-14 17:51:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-14 17:51:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 17:51:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 17:51:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:51:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:51:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:51:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:51:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 17:51:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 17:51:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-14 17:51:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-14 17:51:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:51:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:51:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2021-12-14 17:51:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2021-12-14 17:51:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-14 17:51:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-14 17:51:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2021-12-14 17:51:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2021-12-14 17:51:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2021-12-14 17:51:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2021-12-14 17:51:55,644 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-14 17:51:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-14 17:51:55,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:51:55,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:51:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:51:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 17:51:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 17:51:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2021-12-14 17:51:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2021-12-14 17:51:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:51:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:51:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:51:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-14 17:51:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-14 17:51:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:51:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2021-12-14 17:51:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2021-12-14 17:51:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-14 17:51:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-14 17:51:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:51:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:51:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-14 17:51:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-14 17:51:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2021-12-14 17:51:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2021-12-14 17:51:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2021-12-14 17:51:55,649 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2021-12-14 17:51:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:51:55,649 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:51:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-14 17:51:55,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-14 17:51:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 17:51:55,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 17:51:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2021-12-14 17:51:55,653 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2021-12-14 17:51:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2021-12-14 17:51:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2021-12-14 17:51:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-14 17:51:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-14 17:51:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:51:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 17:51:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 17:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2021-12-14 17:51:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2021-12-14 17:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2021-12-14 17:51:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2021-12-14 17:51:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2021-12-14 17:51:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2021-12-14 17:51:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-14 17:51:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-14 17:51:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:51:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:51:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2021-12-14 17:51:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2021-12-14 17:51:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2021-12-14 17:51:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2021-12-14 17:51:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:51:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:51:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:51:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:51:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-14 17:51:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-14 17:51:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-14 17:51:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-14 17:51:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-14 17:51:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-14 17:51:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2021-12-14 17:51:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2021-12-14 17:51:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:51:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:51:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-14 17:51:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-14 17:51:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2021-12-14 17:51:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2021-12-14 17:51:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2021-12-14 17:51:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2021-12-14 17:51:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2021-12-14 17:51:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2021-12-14 17:51:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2021-12-14 17:51:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2021-12-14 17:51:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-14 17:51:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-14 17:51:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:51:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:51:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:51:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-14 17:51:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-14 17:51:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-14 17:51:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-14 17:51:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2021-12-14 17:51:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2021-12-14 17:51:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:51:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:51:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-14 17:51:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-14 17:51:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:51:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:51:56,326 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:51:56,328 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:51:56,466 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:52:05,776 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:52:05,798 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:52:05,798 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:52:05,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:52:05 BoogieIcfgContainer [2021-12-14 17:52:05,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:52:05,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:52:05,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:52:05,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:52:05,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:51:52" (1/3) ... [2021-12-14 17:52:05,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638e33f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:52:05, skipping insertion in model container [2021-12-14 17:52:05,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:54" (2/3) ... [2021-12-14 17:52:05,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638e33f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:52:05, skipping insertion in model container [2021-12-14 17:52:05,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:52:05" (3/3) ... [2021-12-14 17:52:05,809 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 [2021-12-14 17:52:05,813 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:52:05,814 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:52:05,867 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:52:05,873 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 [2021-12-14 17:52:05,874 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:52:05,914 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) [2021-12-14 17:52:05,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-14 17:52:05,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:52:05,943 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] [2021-12-14 17:52:05,949 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:52:05,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:52:05,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1676759204, now seen corresponding path program 1 times [2021-12-14 17:52:05,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:52:05,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983842418] [2021-12-14 17:52:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:52:05,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:52:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:52:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:52:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:52:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:52:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:52:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:52:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:52:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:52:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:52:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:52:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:52:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:52:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:52:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:52:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:06,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 17:52:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:07,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 17:52:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:07,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 17:52:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:07,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:52:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:07,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 17:52:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-14 17:52:07,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:52:07,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983842418] [2021-12-14 17:52:07,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983842418] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:52:07,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:52:07,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:52:07,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562693567] [2021-12-14 17:52:07,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:52:07,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:52:07,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:52:07,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:52:07,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:52:07,080 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) [2021-12-14 17:52:11,405 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 [] [2021-12-14 17:52:13,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:15,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:18,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:20,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:24,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:26,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:28,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:30,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:52:32,915 INFO L93 Difference]: Finished difference Result 4258 states and 6152 transitions. [2021-12-14 17:52:32,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:52:32,918 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 [2021-12-14 17:52:32,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:52:32,951 INFO L225 Difference]: With dead ends: 4258 [2021-12-14 17:52:32,951 INFO L226 Difference]: Without dead ends: 2775 [2021-12-14 17:52:32,963 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 [2021-12-14 17:52:32,966 INFO L933 BasicCegarLoop]: 2166 mSDtfsCounter, 2599 mSDsluCounter, 3579 mSDsCounter, 0 mSdLazyCounter, 1892 mSolverCounterSat, 1502 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 5745 SdHoareTripleChecker+Invalid, 3403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1502 IncrementalHoareTripleChecker+Valid, 1892 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:52:32,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2833 Valid, 5745 Invalid, 3403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1502 Valid, 1892 Invalid, 9 Unknown, 0 Unchecked, 25.4s Time] [2021-12-14 17:52:32,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2021-12-14 17:52:33,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2691. [2021-12-14 17:52:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 1941 states have (on average 1.3302421432251417) internal successors, (2582), 1953 states have internal predecessors, (2582), 589 states have call successors, (589), 160 states have call predecessors, (589), 160 states have return successors, (592), 587 states have call predecessors, (592), 588 states have call successors, (592) [2021-12-14 17:52:33,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3763 transitions. [2021-12-14 17:52:33,175 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3763 transitions. Word has length 130 [2021-12-14 17:52:33,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:52:33,177 INFO L470 AbstractCegarLoop]: Abstraction has 2691 states and 3763 transitions. [2021-12-14 17:52:33,177 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) [2021-12-14 17:52:33,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3763 transitions. [2021-12-14 17:52:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-14 17:52:33,192 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:52:33,193 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] [2021-12-14 17:52:33,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:52:33,193 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:52:33,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:52:33,194 INFO L85 PathProgramCache]: Analyzing trace with hash -681871988, now seen corresponding path program 1 times [2021-12-14 17:52:33,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:52:33,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601896506] [2021-12-14 17:52:33,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:52:33,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:52:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:52:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:52:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:52:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:52:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:52:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:52:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:52:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:52:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:52:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:52:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:52:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:52:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:52:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:52:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 17:52:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 17:52:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 17:52:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-14 17:52:33,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:52:33,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601896506] [2021-12-14 17:52:33,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601896506] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:52:33,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:52:33,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:52:33,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862633507] [2021-12-14 17:52:33,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:52:33,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:52:33,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:52:33,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:52:33,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:52:33,727 INFO L87 Difference]: Start difference. First operand 2691 states and 3763 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) [2021-12-14 17:52:37,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:39,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:46,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:48,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:50,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:52:50,378 INFO L93 Difference]: Finished difference Result 7244 states and 10148 transitions. [2021-12-14 17:52:50,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 17:52:50,379 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 [2021-12-14 17:52:50,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:52:50,402 INFO L225 Difference]: With dead ends: 7244 [2021-12-14 17:52:50,402 INFO L226 Difference]: Without dead ends: 4586 [2021-12-14 17:52:50,412 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 [2021-12-14 17:52:50,413 INFO L933 BasicCegarLoop]: 2130 mSDtfsCounter, 2592 mSDsluCounter, 3820 mSDsCounter, 0 mSdLazyCounter, 3084 mSolverCounterSat, 1950 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2857 SdHoareTripleChecker+Valid, 5950 SdHoareTripleChecker+Invalid, 5038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1950 IncrementalHoareTripleChecker+Valid, 3084 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:52:50,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2857 Valid, 5950 Invalid, 5038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1950 Valid, 3084 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2021-12-14 17:52:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4586 states. [2021-12-14 17:52:50,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4586 to 4437. [2021-12-14 17:52:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 3176 states have (on average 1.3161209068010076) internal successors, (4180), 3197 states have internal predecessors, (4180), 979 states have call successors, (979), 281 states have call predecessors, (979), 281 states have return successors, (982), 976 states have call predecessors, (982), 978 states have call successors, (982) [2021-12-14 17:52:50,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 6141 transitions. [2021-12-14 17:52:50,580 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 6141 transitions. Word has length 130 [2021-12-14 17:52:50,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:52:50,581 INFO L470 AbstractCegarLoop]: Abstraction has 4437 states and 6141 transitions. [2021-12-14 17:52:50,581 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) [2021-12-14 17:52:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 6141 transitions. [2021-12-14 17:52:50,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-14 17:52:50,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:52:50,584 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] [2021-12-14 17:52:50,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:52:50,585 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:52:50,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:52:50,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2103859548, now seen corresponding path program 1 times [2021-12-14 17:52:50,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:52:50,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257365757] [2021-12-14 17:52:50,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:52:50,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:52:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:52:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:52:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:52:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:52:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:52:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:52:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:52:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:52:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:52:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:52:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:52:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:52:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:52:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:50,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:52:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 17:52:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:51,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 17:52:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:52:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:51,045 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-14 17:52:51,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:52:51,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257365757] [2021-12-14 17:52:51,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257365757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:52:51,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:52:51,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:52:51,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473099624] [2021-12-14 17:52:51,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:52:51,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:52:51,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:52:51,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:52:51,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:52:51,052 INFO L87 Difference]: Start difference. First operand 4437 states and 6141 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) [2021-12-14 17:52:53,559 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 []