/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--serial--jsm--jsm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:18:07,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:18:07,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:18:07,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:18:07,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:18:07,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:18:07,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:18:07,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:18:07,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:18:07,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:18:07,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:18:07,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:18:07,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:18:07,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:18:07,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:18:07,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:18:07,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:18:07,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:18:07,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:18:07,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:18:07,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:18:07,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:18:07,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:18:07,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:18:07,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:18:07,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:18:07,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:18:07,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:18:07,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:18:07,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:18:07,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:18:07,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:18:07,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:18:07,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:18:07,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:18:07,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:18:07,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:18:07,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:18:07,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:18:07,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:18:07,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:18:07,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:18:07,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:18:07,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:18:07,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:18:07,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:18:07,205 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:18:07,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:18:07,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:18:07,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:18:07,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:18:07,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:18:07,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:18:07,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:18:07,207 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:18:07,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:18:07,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:18:07,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:18:07,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:18:07,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:18:07,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:18:07,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:18:07,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:18:07,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:18:07,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:18:07,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:18:07,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:18:07,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:18:07,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:18:07,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:18:07,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:18:07,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:18:07,723 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:18:07,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--serial--jsm--jsm.ko-entry_point.cil.out.i [2020-12-22 15:18:07,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3ebd888/ca6612bf5a02401285b7d99b786a2be7/FLAG5783c85d1 [2020-12-22 15:18:09,020 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:18:09,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--serial--jsm--jsm.ko-entry_point.cil.out.i [2020-12-22 15:18:09,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3ebd888/ca6612bf5a02401285b7d99b786a2be7/FLAG5783c85d1 [2020-12-22 15:18:09,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3ebd888/ca6612bf5a02401285b7d99b786a2be7 [2020-12-22 15:18:09,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:18:09,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:18:09,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:18:09,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:18:09,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:18:09,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:18:09" (1/1) ... [2020-12-22 15:18:09,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c9c339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:09, skipping insertion in model container [2020-12-22 15:18:09,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:18:09" (1/1) ... [2020-12-22 15:18:09,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:18:09,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:18:12,248 WARN L226 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--serial--jsm--jsm.ko-entry_point.cil.out.i[298129,298142] [2020-12-22 15:18:12,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:18:12,378 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:18:13,010 WARN L226 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--serial--jsm--jsm.ko-entry_point.cil.out.i[298129,298142] [2020-12-22 15:18:13,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:18:13,478 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:18:13,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13 WrapperNode [2020-12-22 15:18:13,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:18:13,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:18:13,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:18:13,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:18:13,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (1/1) ... [2020-12-22 15:18:13,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (1/1) ... [2020-12-22 15:18:15,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:18:15,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:18:15,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:18:15,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:18:15,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (1/1) ... [2020-12-22 15:18:15,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (1/1) ... [2020-12-22 15:18:15,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (1/1) ... [2020-12-22 15:18:15,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (1/1) ... [2020-12-22 15:18:16,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (1/1) ... [2020-12-22 15:18:17,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (1/1) ... [2020-12-22 15:18:17,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (1/1) ... [2020-12-22 15:18:17,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:18:17,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:18:17,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:18:17,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:18:17,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (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 [2020-12-22 15:18:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:18:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:18:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure jsm_tty_stop_rx [2020-12-22 15:18:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure jsm_tty_stop_rx [2020-12-22 15:18:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:18:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:18:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure jsm_tty_close [2020-12-22 15:18:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure jsm_tty_close [2020-12-22 15:18:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:18:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:18:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:18:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:18:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:18:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:18:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:18:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:18:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:18:17,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:18:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure jsm_tty_start_tx [2020-12-22 15:18:17,738 INFO L138 BoogieDeclarations]: Found implementation of procedure jsm_tty_start_tx [2020-12-22 15:18:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure jsm_tty_write [2020-12-22 15:18:17,738 INFO L138 BoogieDeclarations]: Found implementation of procedure jsm_tty_write [2020-12-22 15:18:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:18:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:18:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:19:35,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:19:35,038 INFO L299 CfgBuilder]: Removed 5072 assume(true) statements. [2020-12-22 15:19:35,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:19:35 BoogieIcfgContainer [2020-12-22 15:19:35,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:19:35,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:19:35,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:19:35,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:19:35,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:18:09" (1/3) ... [2020-12-22 15:19:35,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1919ad6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:19:35, skipping insertion in model container [2020-12-22 15:19:35,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:18:13" (2/3) ... [2020-12-22 15:19:35,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1919ad6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:19:35, skipping insertion in model container [2020-12-22 15:19:35,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:19:35" (3/3) ... [2020-12-22 15:19:35,055 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--serial--jsm--jsm.ko-entry_point.cil.out.i [2020-12-22 15:19:35,061 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:19:35,070 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-12-22 15:19:35,091 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-22 15:19:35,138 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:19:35,138 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:19:35,138 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:19:35,138 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:19:35,139 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:19:35,139 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:19:35,139 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:19:35,139 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:19:35,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states. [2020-12-22 15:19:35,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 15:19:35,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:19:35,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:19:35,249 INFO L429 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]=== [2020-12-22 15:19:35,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:19:35,256 INFO L82 PathProgramCache]: Analyzing trace with hash 591552274, now seen corresponding path program 1 times [2020-12-22 15:19:35,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:19:35,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909651286] [2020-12-22 15:19:35,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:19:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:19:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:19:36,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909651286] [2020-12-22 15:19:36,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:19:36,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:19:36,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027159197] [2020-12-22 15:19:36,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:19:36,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:19:36,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:19:36,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:19:36,748 INFO L87 Difference]: Start difference. First operand 6081 states. Second operand 3 states. [2020-12-22 15:19:37,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:19:37,845 INFO L93 Difference]: Finished difference Result 17960 states and 26512 transitions. [2020-12-22 15:19:37,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:19:37,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-22 15:19:37,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:19:38,037 INFO L225 Difference]: With dead ends: 17960 [2020-12-22 15:19:38,037 INFO L226 Difference]: Without dead ends: 11858 [2020-12-22 15:19:38,212 INFO L677 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 [2020-12-22 15:19:38,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11858 states. [2020-12-22 15:19:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11858 to 11845. [2020-12-22 15:19:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11845 states. [2020-12-22 15:19:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11845 states to 11845 states and 17450 transitions. [2020-12-22 15:19:39,463 INFO L78 Accepts]: Start accepts. Automaton has 11845 states and 17450 transitions. Word has length 21 [2020-12-22 15:19:39,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:19:39,464 INFO L481 AbstractCegarLoop]: Abstraction has 11845 states and 17450 transitions. [2020-12-22 15:19:39,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:19:39,464 INFO L276 IsEmpty]: Start isEmpty. Operand 11845 states and 17450 transitions. [2020-12-22 15:19:39,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 15:19:39,478 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:19:39,478 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:19:39,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:19:39,480 INFO L429 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]=== [2020-12-22 15:19:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:19:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -940550010, now seen corresponding path program 1 times [2020-12-22 15:19:39,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:19:39,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984779714] [2020-12-22 15:19:39,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:19:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:19:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:19:40,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984779714] [2020-12-22 15:19:40,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:19:40,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:19:40,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97464464] [2020-12-22 15:19:40,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:19:40,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:19:40,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:19:40,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:19:40,312 INFO L87 Difference]: Start difference. First operand 11845 states and 17450 transitions. Second operand 3 states. [2020-12-22 15:19:43,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:19:43,198 INFO L93 Difference]: Finished difference Result 23682 states and 34891 transitions. [2020-12-22 15:19:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:19:43,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-12-22 15:19:43,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:19:43,327 INFO L225 Difference]: With dead ends: 23682 [2020-12-22 15:19:43,328 INFO L226 Difference]: Without dead ends: 11845 [2020-12-22 15:19:43,591 INFO L677 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 [2020-12-22 15:19:43,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11845 states. [2020-12-22 15:19:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11845 to 11845. [2020-12-22 15:19:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11845 states. [2020-12-22 15:19:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11845 states to 11845 states and 17448 transitions. [2020-12-22 15:19:44,232 INFO L78 Accepts]: Start accepts. Automaton has 11845 states and 17448 transitions. Word has length 43 [2020-12-22 15:19:44,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:19:44,233 INFO L481 AbstractCegarLoop]: Abstraction has 11845 states and 17448 transitions. [2020-12-22 15:19:44,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:19:44,234 INFO L276 IsEmpty]: Start isEmpty. Operand 11845 states and 17448 transitions. [2020-12-22 15:19:44,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 15:19:44,240 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:19:44,241 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:19:44,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:19:44,242 INFO L429 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]=== [2020-12-22 15:19:44,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:19:44,245 INFO L82 PathProgramCache]: Analyzing trace with hash -298008223, now seen corresponding path program 1 times [2020-12-22 15:19:44,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:19:44,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884817086] [2020-12-22 15:19:44,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:19:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:19:45,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:19:45,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884817086] [2020-12-22 15:19:45,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:19:45,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:19:45,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640704985] [2020-12-22 15:19:45,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:19:45,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:19:45,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:19:45,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:19:45,019 INFO L87 Difference]: Start difference. First operand 11845 states and 17448 transitions. Second operand 3 states. [2020-12-22 15:19:46,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:19:46,572 INFO L93 Difference]: Finished difference Result 34007 states and 50072 transitions. [2020-12-22 15:19:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:19:46,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-12-22 15:19:46,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:19:46,848 INFO L225 Difference]: With dead ends: 34007 [2020-12-22 15:19:46,849 INFO L226 Difference]: Without dead ends: 22172 [2020-12-22 15:19:47,000 INFO L677 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 [2020-12-22 15:19:47,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22172 states. [2020-12-22 15:19:48,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22172 to 22140. [2020-12-22 15:19:48,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22140 states. [2020-12-22 15:19:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22140 states to 22140 states and 32598 transitions. [2020-12-22 15:19:48,194 INFO L78 Accepts]: Start accepts. Automaton has 22140 states and 32598 transitions. Word has length 49 [2020-12-22 15:19:48,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:19:48,194 INFO L481 AbstractCegarLoop]: Abstraction has 22140 states and 32598 transitions. [2020-12-22 15:19:48,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:19:48,194 INFO L276 IsEmpty]: Start isEmpty. Operand 22140 states and 32598 transitions. [2020-12-22 15:19:48,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 15:19:48,199 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:19:48,199 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:19:48,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:19:48,200 INFO L429 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]=== [2020-12-22 15:19:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:19:48,200 INFO L82 PathProgramCache]: Analyzing trace with hash -470613710, now seen corresponding path program 1 times [2020-12-22 15:19:48,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:19:48,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521281682] [2020-12-22 15:19:48,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:19:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:19:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 15:19:49,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521281682] [2020-12-22 15:19:49,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:19:49,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:19:49,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039598576] [2020-12-22 15:19:49,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:19:49,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:19:49,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:19:49,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:19:49,105 INFO L87 Difference]: Start difference. First operand 22140 states and 32598 transitions. Second operand 3 states. [2020-12-22 15:19:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:19:50,472 INFO L93 Difference]: Finished difference Result 30910 states and 46340 transitions. [2020-12-22 15:19:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:19:50,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-12-22 15:19:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:19:50,474 INFO L225 Difference]: With dead ends: 30910 [2020-12-22 15:19:50,474 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 15:19:50,822 INFO L677 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 [2020-12-22 15:19:50,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 15:19:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 15:19:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 15:19:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 15:19:50,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2020-12-22 15:19:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:19:50,824 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 15:19:50,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:19:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 15:19:50,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 15:19:50,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:19:50,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 15:19:52,433 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-12-22 15:19:53,446 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-12-22 15:21:29,181 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-12-22 15:21:53,111 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 1