/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 01:15:19,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 01:15:19,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 01:15:19,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 01:15:19,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 01:15:19,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 01:15:19,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 01:15:19,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 01:15:19,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 01:15:19,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 01:15:19,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 01:15:19,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 01:15:19,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 01:15:19,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 01:15:19,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 01:15:19,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 01:15:19,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 01:15:19,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 01:15:19,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 01:15:19,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 01:15:19,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 01:15:19,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 01:15:19,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 01:15:19,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 01:15:19,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 01:15:19,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 01:15:19,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 01:15:19,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 01:15:19,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 01:15:19,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 01:15:19,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 01:15:19,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 01:15:19,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 01:15:19,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 01:15:19,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 01:15:19,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 01:15:19,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 01:15:19,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 01:15:19,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 01:15:19,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 01:15:19,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 01:15:19,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 01:15:19,552 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 01:15:19,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 01:15:19,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 01:15:19,554 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 01:15:19,554 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 01:15:19,554 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 01:15:19,554 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 01:15:19,555 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 01:15:19,555 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 01:15:19,555 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 01:15:19,556 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 01:15:19,556 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 01:15:19,557 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 01:15:19,557 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 01:15:19,557 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 01:15:19,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 01:15:19,559 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 01:15:19,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 01:15:19,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 01:15:19,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 01:15:19,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 01:15:19,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 01:15:19,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 01:15:19,560 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 01:15:19,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 01:15:19,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 01:15:19,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 01:15:19,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 01:15:19,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 01:15:19,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:15:19,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 01:15:19,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 01:15:19,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 01:15:19,563 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 01:15:19,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 01:15:19,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 01:15:19,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 01:15:19,565 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 01:15:19,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 01:15:19,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 01:15:19,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 01:15:19,854 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 01:15:19,854 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 01:15:19,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2019-11-24 01:15:19,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd74171fb/09f28d1b172448939b1f6a684afda960/FLAG3b985fe8b [2019-11-24 01:15:20,818 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 01:15:20,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2019-11-24 01:15:20,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd74171fb/09f28d1b172448939b1f6a684afda960/FLAG3b985fe8b [2019-11-24 01:15:21,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd74171fb/09f28d1b172448939b1f6a684afda960 [2019-11-24 01:15:21,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 01:15:21,286 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 01:15:21,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 01:15:21,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 01:15:21,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 01:15:21,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:15:21" (1/1) ... [2019-11-24 01:15:21,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc321d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:21, skipping insertion in model container [2019-11-24 01:15:21,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:15:21" (1/1) ... [2019-11-24 01:15:21,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 01:15:21,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 01:15:23,910 WARN L612 FunctionHandler]: implicit declaration of function ldv_malloc [2019-11-24 01:15:23,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:15:24,007 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 01:15:24,466 WARN L612 FunctionHandler]: implicit declaration of function ldv_malloc [2019-11-24 01:15:24,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:15:24,748 INFO L208 MainTranslator]: Completed translation [2019-11-24 01:15:24,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24 WrapperNode [2019-11-24 01:15:24,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 01:15:24,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 01:15:24,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 01:15:24,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 01:15:24,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... [2019-11-24 01:15:24,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... [2019-11-24 01:15:25,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 01:15:25,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 01:15:25,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 01:15:25,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 01:15:25,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... [2019-11-24 01:15:25,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... [2019-11-24 01:15:25,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... [2019-11-24 01:15:25,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... [2019-11-24 01:15:25,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... [2019-11-24 01:15:25,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... [2019-11-24 01:15:25,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... [2019-11-24 01:15:25,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 01:15:25,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 01:15:25,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 01:15:25,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 01:15:25,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:15:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:15:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-24 01:15:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-24 01:15:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-24 01:15:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 01:15:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2019-11-24 01:15:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2019-11-24 01:15:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-24 01:15:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 01:15:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 01:15:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 01:15:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-24 01:15:25,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-24 01:15:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 01:15:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 01:15:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 01:15:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2019-11-24 01:15:25,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2019-11-24 01:15:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2019-11-24 01:15:25,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2019-11-24 01:15:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-11-24 01:15:25,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-11-24 01:15:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2019-11-24 01:15:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2019-11-24 01:15:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 01:15:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-24 01:15:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 01:15:25,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 01:15:27,012 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:15:32,986 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##607: assume !false; [2019-11-24 01:15:32,986 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##606: assume false; [2019-11-24 01:15:32,988 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:15:33,215 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2019-11-24 01:15:33,216 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2019-11-24 01:15:33,223 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:15:33,224 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:15:41,443 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2019-11-24 01:15:41,443 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2019-11-24 01:15:41,444 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint L8642: ttusb_dec_start_feed_#res := 0; [2019-11-24 01:15:41,444 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##189: assume false; [2019-11-24 01:15:41,444 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##190: assume !false; [2019-11-24 01:15:41,447 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:15:45,998 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2019-11-24 01:15:45,999 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false;