/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-usb-serial-whiteheat.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 01:16:39,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 01:16:39,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 01:16:39,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 01:16:39,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 01:16:39,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 01:16:39,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 01:16:39,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 01:16:39,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 01:16:39,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 01:16:39,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 01:16:39,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 01:16:39,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 01:16:39,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 01:16:39,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 01:16:39,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 01:16:39,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 01:16:39,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 01:16:39,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 01:16:39,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 01:16:39,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 01:16:39,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 01:16:39,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 01:16:39,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 01:16:39,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 01:16:39,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 01:16:39,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 01:16:39,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 01:16:39,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 01:16:39,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 01:16:39,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 01:16:39,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 01:16:39,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 01:16:39,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 01:16:39,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 01:16:39,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 01:16:39,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 01:16:39,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 01:16:39,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 01:16:39,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 01:16:39,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 01:16:39,135 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 01:16:39,149 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 01:16:39,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 01:16:39,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 01:16:39,151 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 01:16:39,151 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 01:16:39,151 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 01:16:39,151 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 01:16:39,151 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 01:16:39,152 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 01:16:39,152 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 01:16:39,152 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 01:16:39,152 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 01:16:39,152 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 01:16:39,153 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 01:16:39,153 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 01:16:39,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 01:16:39,154 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 01:16:39,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 01:16:39,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 01:16:39,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 01:16:39,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 01:16:39,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 01:16:39,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 01:16:39,155 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 01:16:39,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 01:16:39,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 01:16:39,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 01:16:39,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 01:16:39,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 01:16:39,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:16:39,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 01:16:39,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 01:16:39,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 01:16:39,157 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 01:16:39,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 01:16:39,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 01:16:39,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 01:16:39,158 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 01:16:39,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 01:16:39,460 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 01:16:39,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 01:16:39,464 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 01:16:39,464 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 01:16:39,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2019-11-24 01:16:39,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0fb4da2/6c3d9b5d87fa4b2aa3bdc0445a7207b1/FLAG60afe4f84 [2019-11-24 01:16:40,333 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 01:16:40,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2019-11-24 01:16:40,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0fb4da2/6c3d9b5d87fa4b2aa3bdc0445a7207b1/FLAG60afe4f84 [2019-11-24 01:16:40,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0fb4da2/6c3d9b5d87fa4b2aa3bdc0445a7207b1 [2019-11-24 01:16:40,870 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 01:16:40,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 01:16:40,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 01:16:40,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 01:16:40,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 01:16:40,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:16:40" (1/1) ... [2019-11-24 01:16:40,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321a3806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:40, skipping insertion in model container [2019-11-24 01:16:40,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:16:40" (1/1) ... [2019-11-24 01:16:40,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 01:16:40,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 01:16:42,615 WARN L612 FunctionHandler]: implicit declaration of function ldv_malloc [2019-11-24 01:16:42,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:16:42,680 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 01:16:42,970 WARN L612 FunctionHandler]: implicit declaration of function ldv_malloc [2019-11-24 01:16:42,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:16:43,336 INFO L208 MainTranslator]: Completed translation [2019-11-24 01:16:43,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43 WrapperNode [2019-11-24 01:16:43,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 01:16:43,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 01:16:43,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 01:16:43,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 01:16:43,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (1/1) ... [2019-11-24 01:16:43,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (1/1) ... [2019-11-24 01:16:43,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 01:16:43,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 01:16:43,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 01:16:43,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 01:16:43,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (1/1) ... [2019-11-24 01:16:43,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (1/1) ... [2019-11-24 01:16:43,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (1/1) ... [2019-11-24 01:16:43,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (1/1) ... [2019-11-24 01:16:43,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (1/1) ... [2019-11-24 01:16:44,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (1/1) ... [2019-11-24 01:16:44,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (1/1) ... [2019-11-24 01:16:44,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 01:16:44,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 01:16:44,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 01:16:44,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 01:16:44,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (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 01:16:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-24 01:16:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-24 01:16:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-24 01:16:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 01:16:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-24 01:16:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 01:16:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 01:16:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 01:16:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-11-24 01:16:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 01:16:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 01:16:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 01:16:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 01:16:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-24 01:16:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 01:16:44,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 01:16:45,025 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,159 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,166 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,172 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,176 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,180 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,190 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,196 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,201 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,237 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,238 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,242 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,246 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,251 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,256 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:16:45,260 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 01:17:00,684 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1145: assume false; [2019-11-24 01:17:00,684 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1146: assume !false; [2019-11-24 01:17:00,684 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2458: assume !false; [2019-11-24 01:17:00,684 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2457: assume false; [2019-11-24 01:17:00,685 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1031: assume false; [2019-11-24 01:17:00,685 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1032: assume !false; [2019-11-24 01:17:00,685 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2344: assume !false; [2019-11-24 01:17:00,685 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2343: assume false; [2019-11-24 01:17:00,685 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume !false; [2019-11-24 01:17:00,686 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##59: assume false; [2019-11-24 01:17:00,686 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume !false; [2019-11-24 01:17:00,686 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##227: assume false; [2019-11-24 01:17:00,687 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1957: assume false; [2019-11-24 01:17:00,687 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1958: assume !false; [2019-11-24 01:17:00,687 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##352: assume !false; [2019-11-24 01:17:00,688 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##351: assume false; [2019-11-24 01:17:00,688 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##467: assume false; [2019-11-24 01:17:00,688 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##468: assume !false; [2019-11-24 01:17:00,689 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##554: assume !false; [2019-11-24 01:17:00,689 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##553: assume false; [2019-11-24 01:17:00,689 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1822: assume false; [2019-11-24 01:17:00,689 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1823: assume !false; [2019-11-24 01:17:00,689 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1809: assume false; [2019-11-24 01:17:00,689 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1810: assume !false; [2019-11-24 01:17:00,690 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2199: assume !false; [2019-11-24 01:17:00,691 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2198: assume false; [2019-11-24 01:17:00,691 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##689: assume !false; [2019-11-24 01:17:00,691 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##688: assume false; [2019-11-24 01:17:00,691 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2072: assume !false; [2019-11-24 01:17:00,692 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2071: assume false; [2019-11-24 01:17:00,692 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##884: assume !false; [2019-11-24 01:17:00,693 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##883: assume false; [2019-11-24 01:17:58,843 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 01:17:58,843 INFO L284 CfgBuilder]: Removed 1574 assume(true) statements. [2019-11-24 01:17:58,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:17:58 BoogieIcfgContainer [2019-11-24 01:17:58,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 01:17:58,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 01:17:58,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 01:17:58,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 01:17:58,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:16:40" (1/3) ... [2019-11-24 01:17:58,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59667585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:17:58, skipping insertion in model container [2019-11-24 01:17:58,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:16:43" (2/3) ... [2019-11-24 01:17:58,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59667585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:17:58, skipping insertion in model container [2019-11-24 01:17:58,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:17:58" (3/3) ... [2019-11-24 01:17:58,852 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2019-11-24 01:17:58,859 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 01:17:58,868 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-24 01:17:58,878 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-24 01:17:58,909 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 01:17:58,909 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 01:17:58,909 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 01:17:58,909 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 01:17:58,909 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 01:17:58,909 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 01:17:58,910 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 01:17:58,910 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 01:17:58,940 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states. [2019-11-24 01:17:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 01:17:58,946 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:17:58,947 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:17:58,948 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:17:58,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:17:58,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1600893472, now seen corresponding path program 1 times [2019-11-24 01:17:58,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:17:58,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720499714] [2019-11-24 01:17:58,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:17:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:17:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:17:59,652 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720499714] [2019-11-24 01:17:59,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:17:59,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 01:17:59,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129190660] [2019-11-24 01:17:59,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:17:59,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:17:59,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:17:59,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:17:59,676 INFO L87 Difference]: Start difference. First operand 569 states. Second operand 3 states. [2019-11-24 01:18:00,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:18:00,164 INFO L93 Difference]: Finished difference Result 1666 states and 2867 transitions. [2019-11-24 01:18:00,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:18:00,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-24 01:18:00,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:18:00,190 INFO L225 Difference]: With dead ends: 1666 [2019-11-24 01:18:00,190 INFO L226 Difference]: Without dead ends: 1091 [2019-11-24 01:18:00,197 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:18:00,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2019-11-24 01:18:00,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1079. [2019-11-24 01:18:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1079 states. [2019-11-24 01:18:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1704 transitions. [2019-11-24 01:18:00,322 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1704 transitions. Word has length 7 [2019-11-24 01:18:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:18:00,326 INFO L462 AbstractCegarLoop]: Abstraction has 1079 states and 1704 transitions. [2019-11-24 01:18:00,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:18:00,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1704 transitions. [2019-11-24 01:18:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 01:18:00,335 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:18:00,335 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:18:00,335 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:18:00,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:18:00,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1911916488, now seen corresponding path program 1 times [2019-11-24 01:18:00,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:18:00,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032520935] [2019-11-24 01:18:00,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:18:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:18:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:18:00,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032520935] [2019-11-24 01:18:00,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:18:00,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 01:18:00,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898902880] [2019-11-24 01:18:00,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:18:00,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:18:00,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:18:00,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:18:00,646 INFO L87 Difference]: Start difference. First operand 1079 states and 1704 transitions. Second operand 3 states. [2019-11-24 01:18:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:18:00,679 INFO L93 Difference]: Finished difference Result 1079 states and 1704 transitions. [2019-11-24 01:18:00,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:18:00,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 01:18:00,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:18:00,687 INFO L225 Difference]: With dead ends: 1079 [2019-11-24 01:18:00,687 INFO L226 Difference]: Without dead ends: 1074 [2019-11-24 01:18:00,688 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:18:00,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2019-11-24 01:18:00,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1074. [2019-11-24 01:18:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1074 states. [2019-11-24 01:18:00,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1695 transitions. [2019-11-24 01:18:00,745 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1695 transitions. Word has length 8 [2019-11-24 01:18:00,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:18:00,746 INFO L462 AbstractCegarLoop]: Abstraction has 1074 states and 1695 transitions. [2019-11-24 01:18:00,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:18:00,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1695 transitions. [2019-11-24 01:18:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-24 01:18:00,756 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:18:00,756 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:18:00,756 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:18:00,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:18:00,757 INFO L82 PathProgramCache]: Analyzing trace with hash 625289446, now seen corresponding path program 1 times [2019-11-24 01:18:00,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:18:00,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980732898] [2019-11-24 01:18:00,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:18:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:18:01,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:18:01,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980732898] [2019-11-24 01:18:01,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:18:01,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:18:01,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606259611] [2019-11-24 01:18:01,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:18:01,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:18:01,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:18:01,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:18:01,214 INFO L87 Difference]: Start difference. First operand 1074 states and 1695 transitions. Second operand 3 states. [2019-11-24 01:18:04,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:18:04,135 INFO L93 Difference]: Finished difference Result 2690 states and 4254 transitions. [2019-11-24 01:18:04,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:18:04,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-24 01:18:04,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:18:04,144 INFO L225 Difference]: With dead ends: 2690 [2019-11-24 01:18:04,144 INFO L226 Difference]: Without dead ends: 1623 [2019-11-24 01:18:04,147 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:18:04,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2019-11-24 01:18:04,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1613. [2019-11-24 01:18:04,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1613 states. [2019-11-24 01:18:04,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2554 transitions. [2019-11-24 01:18:04,206 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2554 transitions. Word has length 27 [2019-11-24 01:18:04,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:18:04,207 INFO L462 AbstractCegarLoop]: Abstraction has 1613 states and 2554 transitions. [2019-11-24 01:18:04,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:18:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2554 transitions. [2019-11-24 01:18:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-24 01:18:04,209 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:18:04,209 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:18:04,209 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:18:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:18:04,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1345677640, now seen corresponding path program 1 times [2019-11-24 01:18:04,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:18:04,210 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241202077] [2019-11-24 01:18:04,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY