/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/ntdrivers-simplified/floppy_simpl3.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:15:07,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:15:07,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:15:07,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-21 23:15:07,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-21 23:15:07,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-21 23:15:07,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-21 23:15:07,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-21 23:15:07,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-21 23:15:07,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-21 23:15:07,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-21 23:15:07,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-21 23:15:07,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:15:07,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:15:07,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:15:07,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:15:07,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:15:07,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:15:07,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:15:07,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:15:07,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:15:07,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:15:07,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:15:07,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:15:07,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-21 23:15:07,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-21 23:15:07,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-21 23:15:07,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-21 23:15:07,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-21 23:15:07,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-21 23:15:07,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-21 23:15:07,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-21 23:15:07,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-21 23:15:07,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-21 23:15:07,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-21 23:15:07,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-21 23:15:07,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-21 23:15:07,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-21 23:15:07,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:15:07,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:15:07,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:15:07,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:15:07,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:15:07,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:15:07,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:15:07,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:15:07,859 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:15:07,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:15:07,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:15:07,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:15:07,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:15:07,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:15:07,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:15:07,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:15:07,862 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:15:07,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:15:07,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:15:07,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:15:07,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:15:07,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:15:07,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:15:07,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:15:07,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:15:07,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:15:07,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:15:07,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:15:07,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:15:07,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:15:08,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:15:08,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:15:08,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:15:08,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:15:08,349 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:15:08,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2020-12-21 23:15:08,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84c0d7e8/9991d5ebc3594bc4b5a909482153afd6/FLAG11f85ef80 [2020-12-21 23:15:09,091 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:15:09,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2020-12-21 23:15:09,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84c0d7e8/9991d5ebc3594bc4b5a909482153afd6/FLAG11f85ef80 [2020-12-21 23:15:09,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84c0d7e8/9991d5ebc3594bc4b5a909482153afd6 [2020-12-21 23:15:09,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:15:09,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:15:09,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:15:09,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:15:09,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:15:09,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:09,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5ba7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09, skipping insertion in model container [2020-12-21 23:15:09,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:09,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:15:09,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:15:09,652 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/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2020-12-21 23:15:09,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:15:09,824 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:15:09,859 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/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2020-12-21 23:15:09,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:15:09,974 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:15:09,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09 WrapperNode [2020-12-21 23:15:09,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:15:09,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:15:09,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:15:09,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:15:09,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:10,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:10,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:15:10,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:15:10,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:15:10,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:15:10,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:10,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:10,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:10,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:10,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:10,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:10,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (1/1) ... [2020-12-21 23:15:10,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:15:10,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:15:10,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:15:10,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:15:10,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (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 [2020-12-21 23:15:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:15:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:15:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:15:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:15:10,719 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,726 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,730 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,737 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,738 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,741 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,745 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,749 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,752 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,753 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,758 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,764 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,767 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,771 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,772 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,777 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,781 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,786 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,787 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,790 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,792 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,793 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,793 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:10,796 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:15:11,992 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume !false; [2020-12-21 23:15:11,993 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume false; [2020-12-21 23:15:11,993 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2020-12-21 23:15:11,993 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume false; [2020-12-21 23:15:11,994 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##291: assume !false; [2020-12-21 23:15:11,994 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !false; [2020-12-21 23:15:11,994 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##269: assume false; [2020-12-21 23:15:11,994 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume !false; [2020-12-21 23:15:11,994 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2020-12-21 23:15:11,995 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2020-12-21 23:15:11,995 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2020-12-21 23:15:11,995 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2020-12-21 23:15:11,995 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2020-12-21 23:15:11,995 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##470: assume false; [2020-12-21 23:15:11,996 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2020-12-21 23:15:11,996 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##471: assume !false; [2020-12-21 23:15:11,996 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2020-12-21 23:15:11,996 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !false; [2020-12-21 23:15:11,996 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume false; [2020-12-21 23:15:11,996 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume false; [2020-12-21 23:15:11,997 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume !false; [2020-12-21 23:15:11,997 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume false; [2020-12-21 23:15:11,997 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-12-21 23:15:11,998 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-12-21 23:15:11,998 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2020-12-21 23:15:11,998 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2020-12-21 23:15:11,998 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2020-12-21 23:15:11,998 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2020-12-21 23:15:11,999 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2020-12-21 23:15:11,999 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2020-12-21 23:15:11,999 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2020-12-21 23:15:11,999 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2020-12-21 23:15:11,999 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2020-12-21 23:15:12,000 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2020-12-21 23:15:12,000 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2020-12-21 23:15:12,000 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2020-12-21 23:15:12,000 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume false; [2020-12-21 23:15:12,000 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2020-12-21 23:15:12,001 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume !false; [2020-12-21 23:15:12,001 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2020-12-21 23:15:12,001 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2020-12-21 23:15:12,001 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2020-12-21 23:15:12,001 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2020-12-21 23:15:12,002 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2020-12-21 23:15:12,002 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2020-12-21 23:15:12,002 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2020-12-21 23:15:12,002 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume !false; [2020-12-21 23:15:12,002 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##363: assume false; [2020-12-21 23:15:12,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:15:12,018 INFO L299 CfgBuilder]: Removed 207 assume(true) statements. [2020-12-21 23:15:12,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:15:12 BoogieIcfgContainer [2020-12-21 23:15:12,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:15:12,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:15:12,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:15:12,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:15:12,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:15:09" (1/3) ... [2020-12-21 23:15:12,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3652430d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:15:12, skipping insertion in model container [2020-12-21 23:15:12,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:09" (2/3) ... [2020-12-21 23:15:12,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3652430d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:15:12, skipping insertion in model container [2020-12-21 23:15:12,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:15:12" (3/3) ... [2020-12-21 23:15:12,029 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2020-12-21 23:15:12,036 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:15:12,043 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 41 error locations. [2020-12-21 23:15:12,060 INFO L253 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2020-12-21 23:15:12,091 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:15:12,091 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:15:12,091 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:15:12,091 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:15:12,092 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:15:12,092 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:15:12,092 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:15:12,092 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:15:12,121 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states. [2020-12-21 23:15:12,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-21 23:15:12,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:12,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:15:12,129 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:12,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:12,135 INFO L82 PathProgramCache]: Analyzing trace with hash 660910296, now seen corresponding path program 1 times [2020-12-21 23:15:12,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:12,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523306956] [2020-12-21 23:15:12,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:12,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523306956] [2020-12-21 23:15:12,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:12,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:12,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23035030] [2020-12-21 23:15:12,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:12,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:12,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:12,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:12,366 INFO L87 Difference]: Start difference. First operand 421 states. Second operand 3 states. [2020-12-21 23:15:12,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:12,510 INFO L93 Difference]: Finished difference Result 763 states and 1090 transitions. [2020-12-21 23:15:12,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:12,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-21 23:15:12,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:12,530 INFO L225 Difference]: With dead ends: 763 [2020-12-21 23:15:12,530 INFO L226 Difference]: Without dead ends: 416 [2020-12-21 23:15:12,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:12,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-12-21 23:15:12,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2020-12-21 23:15:12,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-12-21 23:15:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 546 transitions. [2020-12-21 23:15:12,629 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 546 transitions. Word has length 11 [2020-12-21 23:15:12,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:12,629 INFO L481 AbstractCegarLoop]: Abstraction has 416 states and 546 transitions. [2020-12-21 23:15:12,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 546 transitions. [2020-12-21 23:15:12,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-21 23:15:12,630 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:12,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:15:12,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:15:12,631 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:12,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:12,632 INFO L82 PathProgramCache]: Analyzing trace with hash -32433196, now seen corresponding path program 1 times [2020-12-21 23:15:12,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:12,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173504677] [2020-12-21 23:15:12,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:12,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173504677] [2020-12-21 23:15:12,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:12,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:12,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646583268] [2020-12-21 23:15:12,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:12,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:12,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:12,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:12,756 INFO L87 Difference]: Start difference. First operand 416 states and 546 transitions. Second operand 3 states. [2020-12-21 23:15:13,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:13,181 INFO L93 Difference]: Finished difference Result 714 states and 941 transitions. [2020-12-21 23:15:13,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:13,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-21 23:15:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:13,191 INFO L225 Difference]: With dead ends: 714 [2020-12-21 23:15:13,191 INFO L226 Difference]: Without dead ends: 547 [2020-12-21 23:15:13,196 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 [2020-12-21 23:15:13,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-12-21 23:15:13,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 521. [2020-12-21 23:15:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-12-21 23:15:13,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 697 transitions. [2020-12-21 23:15:13,295 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 697 transitions. Word has length 13 [2020-12-21 23:15:13,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:13,295 INFO L481 AbstractCegarLoop]: Abstraction has 521 states and 697 transitions. [2020-12-21 23:15:13,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:13,296 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 697 transitions. [2020-12-21 23:15:13,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-21 23:15:13,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:13,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:15:13,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-21 23:15:13,297 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:13,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:13,298 INFO L82 PathProgramCache]: Analyzing trace with hash 563627937, now seen corresponding path program 1 times [2020-12-21 23:15:13,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:13,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541987198] [2020-12-21 23:15:13,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:13,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541987198] [2020-12-21 23:15:13,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:13,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:13,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978690336] [2020-12-21 23:15:13,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:13,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:13,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:13,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:13,380 INFO L87 Difference]: Start difference. First operand 521 states and 697 transitions. Second operand 3 states. [2020-12-21 23:15:13,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:13,470 INFO L93 Difference]: Finished difference Result 1000 states and 1335 transitions. [2020-12-21 23:15:13,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:13,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-21 23:15:13,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:13,477 INFO L225 Difference]: With dead ends: 1000 [2020-12-21 23:15:13,477 INFO L226 Difference]: Without dead ends: 690 [2020-12-21 23:15:13,484 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 [2020-12-21 23:15:13,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2020-12-21 23:15:13,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 519. [2020-12-21 23:15:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2020-12-21 23:15:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 696 transitions. [2020-12-21 23:15:13,542 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 696 transitions. Word has length 16 [2020-12-21 23:15:13,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:13,542 INFO L481 AbstractCegarLoop]: Abstraction has 519 states and 696 transitions. [2020-12-21 23:15:13,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 696 transitions. [2020-12-21 23:15:13,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-21 23:15:13,545 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:13,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:15:13,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-21 23:15:13,546 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:13,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:13,546 INFO L82 PathProgramCache]: Analyzing trace with hash 6806604, now seen corresponding path program 1 times [2020-12-21 23:15:13,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:13,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478019266] [2020-12-21 23:15:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:13,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478019266] [2020-12-21 23:15:13,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:13,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:13,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631249946] [2020-12-21 23:15:13,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:13,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:13,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:13,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:13,684 INFO L87 Difference]: Start difference. First operand 519 states and 696 transitions. Second operand 3 states. [2020-12-21 23:15:13,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:13,747 INFO L93 Difference]: Finished difference Result 601 states and 797 transitions. [2020-12-21 23:15:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:13,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-21 23:15:13,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:13,752 INFO L225 Difference]: With dead ends: 601 [2020-12-21 23:15:13,752 INFO L226 Difference]: Without dead ends: 578 [2020-12-21 23:15:13,752 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 [2020-12-21 23:15:13,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-12-21 23:15:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 537. [2020-12-21 23:15:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-12-21 23:15:13,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 727 transitions. [2020-12-21 23:15:13,780 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 727 transitions. Word has length 19 [2020-12-21 23:15:13,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:13,781 INFO L481 AbstractCegarLoop]: Abstraction has 537 states and 727 transitions. [2020-12-21 23:15:13,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:13,781 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 727 transitions. [2020-12-21 23:15:13,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-21 23:15:13,783 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:13,783 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] [2020-12-21 23:15:13,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-21 23:15:13,784 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:13,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:13,784 INFO L82 PathProgramCache]: Analyzing trace with hash -450647822, now seen corresponding path program 1 times [2020-12-21 23:15:13,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:13,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901438792] [2020-12-21 23:15:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:13,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901438792] [2020-12-21 23:15:13,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:13,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:13,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658431573] [2020-12-21 23:15:13,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:13,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:13,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:13,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:13,847 INFO L87 Difference]: Start difference. First operand 537 states and 727 transitions. Second operand 4 states. [2020-12-21 23:15:13,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:13,914 INFO L93 Difference]: Finished difference Result 650 states and 863 transitions. [2020-12-21 23:15:13,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-21 23:15:13,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-21 23:15:13,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:13,919 INFO L225 Difference]: With dead ends: 650 [2020-12-21 23:15:13,919 INFO L226 Difference]: Without dead ends: 599 [2020-12-21 23:15:13,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:13,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-12-21 23:15:13,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 539. [2020-12-21 23:15:13,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-12-21 23:15:13,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 729 transitions. [2020-12-21 23:15:13,952 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 729 transitions. Word has length 22 [2020-12-21 23:15:13,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:13,953 INFO L481 AbstractCegarLoop]: Abstraction has 539 states and 729 transitions. [2020-12-21 23:15:13,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 729 transitions. [2020-12-21 23:15:13,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-21 23:15:13,959 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:13,959 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] [2020-12-21 23:15:13,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-21 23:15:13,960 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:13,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:13,961 INFO L82 PathProgramCache]: Analyzing trace with hash 364241657, now seen corresponding path program 1 times [2020-12-21 23:15:13,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:13,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260771111] [2020-12-21 23:15:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:14,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:14,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260771111] [2020-12-21 23:15:14,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:14,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:14,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747249312] [2020-12-21 23:15:14,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:14,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:14,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:14,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:14,060 INFO L87 Difference]: Start difference. First operand 539 states and 729 transitions. Second operand 3 states. [2020-12-21 23:15:14,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:14,277 INFO L93 Difference]: Finished difference Result 574 states and 773 transitions. [2020-12-21 23:15:14,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:14,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-21 23:15:14,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:14,281 INFO L225 Difference]: With dead ends: 574 [2020-12-21 23:15:14,281 INFO L226 Difference]: Without dead ends: 569 [2020-12-21 23:15:14,282 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 [2020-12-21 23:15:14,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-12-21 23:15:14,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 566. [2020-12-21 23:15:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-12-21 23:15:14,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 765 transitions. [2020-12-21 23:15:14,325 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 765 transitions. Word has length 22 [2020-12-21 23:15:14,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:14,325 INFO L481 AbstractCegarLoop]: Abstraction has 566 states and 765 transitions. [2020-12-21 23:15:14,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:14,326 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 765 transitions. [2020-12-21 23:15:14,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-21 23:15:14,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:14,328 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] [2020-12-21 23:15:14,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-21 23:15:14,330 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:14,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:14,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1575831316, now seen corresponding path program 1 times [2020-12-21 23:15:14,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:14,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118905715] [2020-12-21 23:15:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:14,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118905715] [2020-12-21 23:15:14,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:14,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:14,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384372413] [2020-12-21 23:15:14,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:14,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:14,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:14,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:14,448 INFO L87 Difference]: Start difference. First operand 566 states and 765 transitions. Second operand 4 states. [2020-12-21 23:15:14,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:14,698 INFO L93 Difference]: Finished difference Result 578 states and 775 transitions. [2020-12-21 23:15:14,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:14,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-12-21 23:15:14,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:14,702 INFO L225 Difference]: With dead ends: 578 [2020-12-21 23:15:14,702 INFO L226 Difference]: Without dead ends: 569 [2020-12-21 23:15:14,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:14,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-12-21 23:15:14,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 566. [2020-12-21 23:15:14,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-12-21 23:15:14,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 763 transitions. [2020-12-21 23:15:14,739 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 763 transitions. Word has length 23 [2020-12-21 23:15:14,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:14,739 INFO L481 AbstractCegarLoop]: Abstraction has 566 states and 763 transitions. [2020-12-21 23:15:14,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:14,740 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 763 transitions. [2020-12-21 23:15:14,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-21 23:15:14,741 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:14,741 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] [2020-12-21 23:15:14,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-21 23:15:14,741 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:14,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:14,742 INFO L82 PathProgramCache]: Analyzing trace with hash -2139092952, now seen corresponding path program 1 times [2020-12-21 23:15:14,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:14,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672221796] [2020-12-21 23:15:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:14,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:14,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672221796] [2020-12-21 23:15:14,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:14,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:14,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122705916] [2020-12-21 23:15:14,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:14,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:14,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:14,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:14,828 INFO L87 Difference]: Start difference. First operand 566 states and 763 transitions. Second operand 4 states. [2020-12-21 23:15:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:15,059 INFO L93 Difference]: Finished difference Result 578 states and 773 transitions. [2020-12-21 23:15:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:15,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-12-21 23:15:15,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:15,067 INFO L225 Difference]: With dead ends: 578 [2020-12-21 23:15:15,067 INFO L226 Difference]: Without dead ends: 569 [2020-12-21 23:15:15,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-12-21 23:15:15,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 566. [2020-12-21 23:15:15,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-12-21 23:15:15,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 761 transitions. [2020-12-21 23:15:15,107 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 761 transitions. Word has length 24 [2020-12-21 23:15:15,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:15,109 INFO L481 AbstractCegarLoop]: Abstraction has 566 states and 761 transitions. [2020-12-21 23:15:15,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 761 transitions. [2020-12-21 23:15:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-21 23:15:15,110 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:15,111 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] [2020-12-21 23:15:15,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-21 23:15:15,111 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:15,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:15,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1167485085, now seen corresponding path program 1 times [2020-12-21 23:15:15,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:15,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606504435] [2020-12-21 23:15:15,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:15,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606504435] [2020-12-21 23:15:15,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:15,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:15,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087279141] [2020-12-21 23:15:15,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:15,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:15,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:15,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:15,157 INFO L87 Difference]: Start difference. First operand 566 states and 761 transitions. Second operand 3 states. [2020-12-21 23:15:15,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:15,417 INFO L93 Difference]: Finished difference Result 768 states and 1029 transitions. [2020-12-21 23:15:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:15,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-21 23:15:15,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:15,423 INFO L225 Difference]: With dead ends: 768 [2020-12-21 23:15:15,423 INFO L226 Difference]: Without dead ends: 760 [2020-12-21 23:15:15,424 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 [2020-12-21 23:15:15,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-12-21 23:15:15,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 584. [2020-12-21 23:15:15,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-12-21 23:15:15,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 788 transitions. [2020-12-21 23:15:15,468 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 788 transitions. Word has length 25 [2020-12-21 23:15:15,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:15,469 INFO L481 AbstractCegarLoop]: Abstraction has 584 states and 788 transitions. [2020-12-21 23:15:15,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:15,469 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 788 transitions. [2020-12-21 23:15:15,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-21 23:15:15,471 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:15,472 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] [2020-12-21 23:15:15,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-21 23:15:15,473 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:15,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:15,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1184010678, now seen corresponding path program 1 times [2020-12-21 23:15:15,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:15,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718463652] [2020-12-21 23:15:15,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:15,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718463652] [2020-12-21 23:15:15,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:15,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:15,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937975772] [2020-12-21 23:15:15,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:15,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:15,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:15,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:15,521 INFO L87 Difference]: Start difference. First operand 584 states and 788 transitions. Second operand 3 states. [2020-12-21 23:15:15,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:15,717 INFO L93 Difference]: Finished difference Result 584 states and 788 transitions. [2020-12-21 23:15:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:15,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-21 23:15:15,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:15,720 INFO L225 Difference]: With dead ends: 584 [2020-12-21 23:15:15,720 INFO L226 Difference]: Without dead ends: 572 [2020-12-21 23:15:15,721 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 [2020-12-21 23:15:15,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2020-12-21 23:15:15,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2020-12-21 23:15:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-12-21 23:15:15,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 775 transitions. [2020-12-21 23:15:15,764 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 775 transitions. Word has length 25 [2020-12-21 23:15:15,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:15,764 INFO L481 AbstractCegarLoop]: Abstraction has 572 states and 775 transitions. [2020-12-21 23:15:15,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:15,764 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 775 transitions. [2020-12-21 23:15:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-21 23:15:15,767 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:15,767 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] [2020-12-21 23:15:15,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-21 23:15:15,767 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:15,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:15,768 INFO L82 PathProgramCache]: Analyzing trace with hash 2043637155, now seen corresponding path program 1 times [2020-12-21 23:15:15,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:15,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443231884] [2020-12-21 23:15:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:15,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:15,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443231884] [2020-12-21 23:15:15,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:15,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:15,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64707875] [2020-12-21 23:15:15,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:15,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:15,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:15,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:15,821 INFO L87 Difference]: Start difference. First operand 572 states and 775 transitions. Second operand 4 states. [2020-12-21 23:15:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:15,882 INFO L93 Difference]: Finished difference Result 585 states and 787 transitions. [2020-12-21 23:15:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:15,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-21 23:15:15,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:15,907 INFO L225 Difference]: With dead ends: 585 [2020-12-21 23:15:15,907 INFO L226 Difference]: Without dead ends: 570 [2020-12-21 23:15:15,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:15,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-12-21 23:15:15,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2020-12-21 23:15:15,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-12-21 23:15:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 772 transitions. [2020-12-21 23:15:15,953 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 772 transitions. Word has length 25 [2020-12-21 23:15:15,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:15,954 INFO L481 AbstractCegarLoop]: Abstraction has 570 states and 772 transitions. [2020-12-21 23:15:15,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:15,954 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 772 transitions. [2020-12-21 23:15:15,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-21 23:15:15,955 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:15,955 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] [2020-12-21 23:15:15,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-21 23:15:15,956 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:15,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:15,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1824640765, now seen corresponding path program 1 times [2020-12-21 23:15:15,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:15,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844835567] [2020-12-21 23:15:15,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:16,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:16,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844835567] [2020-12-21 23:15:16,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:16,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:16,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773246172] [2020-12-21 23:15:16,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:16,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:16,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:16,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:16,034 INFO L87 Difference]: Start difference. First operand 570 states and 772 transitions. Second operand 4 states. [2020-12-21 23:15:16,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:16,310 INFO L93 Difference]: Finished difference Result 870 states and 1155 transitions. [2020-12-21 23:15:16,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:16,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-21 23:15:16,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:16,314 INFO L225 Difference]: With dead ends: 870 [2020-12-21 23:15:16,314 INFO L226 Difference]: Without dead ends: 611 [2020-12-21 23:15:16,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:16,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-12-21 23:15:16,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 553. [2020-12-21 23:15:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-12-21 23:15:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 736 transitions. [2020-12-21 23:15:16,355 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 736 transitions. Word has length 26 [2020-12-21 23:15:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:16,355 INFO L481 AbstractCegarLoop]: Abstraction has 553 states and 736 transitions. [2020-12-21 23:15:16,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 736 transitions. [2020-12-21 23:15:16,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-21 23:15:16,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:16,357 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] [2020-12-21 23:15:16,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-21 23:15:16,357 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:16,358 INFO L82 PathProgramCache]: Analyzing trace with hash -944626100, now seen corresponding path program 1 times [2020-12-21 23:15:16,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:16,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580200866] [2020-12-21 23:15:16,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:16,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:16,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580200866] [2020-12-21 23:15:16,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:16,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:16,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746616461] [2020-12-21 23:15:16,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:16,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:16,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:16,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:16,398 INFO L87 Difference]: Start difference. First operand 553 states and 736 transitions. Second operand 3 states. [2020-12-21 23:15:16,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:16,585 INFO L93 Difference]: Finished difference Result 761 states and 1012 transitions. [2020-12-21 23:15:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:16,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-12-21 23:15:16,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:16,589 INFO L225 Difference]: With dead ends: 761 [2020-12-21 23:15:16,589 INFO L226 Difference]: Without dead ends: 555 [2020-12-21 23:15:16,590 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 [2020-12-21 23:15:16,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-12-21 23:15:16,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2020-12-21 23:15:16,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-12-21 23:15:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 739 transitions. [2020-12-21 23:15:16,643 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 739 transitions. Word has length 28 [2020-12-21 23:15:16,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:16,643 INFO L481 AbstractCegarLoop]: Abstraction has 555 states and 739 transitions. [2020-12-21 23:15:16,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:16,643 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 739 transitions. [2020-12-21 23:15:16,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-21 23:15:16,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:16,644 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] [2020-12-21 23:15:16,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-21 23:15:16,645 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:16,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:16,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1312752221, now seen corresponding path program 1 times [2020-12-21 23:15:16,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:16,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692872800] [2020-12-21 23:15:16,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:16,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:16,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692872800] [2020-12-21 23:15:16,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:16,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:16,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486144506] [2020-12-21 23:15:16,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:16,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:16,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:16,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:16,678 INFO L87 Difference]: Start difference. First operand 555 states and 739 transitions. Second operand 3 states. [2020-12-21 23:15:16,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:16,743 INFO L93 Difference]: Finished difference Result 735 states and 969 transitions. [2020-12-21 23:15:16,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:16,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-12-21 23:15:16,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:16,746 INFO L225 Difference]: With dead ends: 735 [2020-12-21 23:15:16,746 INFO L226 Difference]: Without dead ends: 531 [2020-12-21 23:15:16,747 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 [2020-12-21 23:15:16,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-12-21 23:15:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 515. [2020-12-21 23:15:16,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-12-21 23:15:16,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 681 transitions. [2020-12-21 23:15:16,783 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 681 transitions. Word has length 29 [2020-12-21 23:15:16,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:16,784 INFO L481 AbstractCegarLoop]: Abstraction has 515 states and 681 transitions. [2020-12-21 23:15:16,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:16,784 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 681 transitions. [2020-12-21 23:15:16,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-21 23:15:16,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:16,785 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] [2020-12-21 23:15:16,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-21 23:15:16,785 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:16,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:16,786 INFO L82 PathProgramCache]: Analyzing trace with hash 259846608, now seen corresponding path program 1 times [2020-12-21 23:15:16,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:16,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619711555] [2020-12-21 23:15:16,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:16,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619711555] [2020-12-21 23:15:16,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:16,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-21 23:15:16,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120509914] [2020-12-21 23:15:16,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-21 23:15:16,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:16,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-21 23:15:16,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:16,837 INFO L87 Difference]: Start difference. First operand 515 states and 681 transitions. Second operand 5 states. [2020-12-21 23:15:17,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:17,175 INFO L93 Difference]: Finished difference Result 1326 states and 1752 transitions. [2020-12-21 23:15:17,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-21 23:15:17,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-21 23:15:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:17,180 INFO L225 Difference]: With dead ends: 1326 [2020-12-21 23:15:17,181 INFO L226 Difference]: Without dead ends: 1054 [2020-12-21 23:15:17,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-21 23:15:17,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2020-12-21 23:15:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 554. [2020-12-21 23:15:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-12-21 23:15:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 739 transitions. [2020-12-21 23:15:17,245 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 739 transitions. Word has length 32 [2020-12-21 23:15:17,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:17,245 INFO L481 AbstractCegarLoop]: Abstraction has 554 states and 739 transitions. [2020-12-21 23:15:17,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-21 23:15:17,245 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 739 transitions. [2020-12-21 23:15:17,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-21 23:15:17,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:17,246 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] [2020-12-21 23:15:17,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-21 23:15:17,247 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:17,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:17,247 INFO L82 PathProgramCache]: Analyzing trace with hash 175699761, now seen corresponding path program 1 times [2020-12-21 23:15:17,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:17,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590751436] [2020-12-21 23:15:17,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:17,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590751436] [2020-12-21 23:15:17,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:17,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:17,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100319215] [2020-12-21 23:15:17,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:17,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:17,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:17,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:17,284 INFO L87 Difference]: Start difference. First operand 554 states and 739 transitions. Second operand 3 states. [2020-12-21 23:15:17,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:17,357 INFO L93 Difference]: Finished difference Result 814 states and 1074 transitions. [2020-12-21 23:15:17,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:17,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-21 23:15:17,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:17,360 INFO L225 Difference]: With dead ends: 814 [2020-12-21 23:15:17,361 INFO L226 Difference]: Without dead ends: 615 [2020-12-21 23:15:17,361 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 [2020-12-21 23:15:17,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2020-12-21 23:15:17,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 542. [2020-12-21 23:15:17,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-12-21 23:15:17,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 721 transitions. [2020-12-21 23:15:17,406 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 721 transitions. Word has length 33 [2020-12-21 23:15:17,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:17,406 INFO L481 AbstractCegarLoop]: Abstraction has 542 states and 721 transitions. [2020-12-21 23:15:17,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:17,406 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 721 transitions. [2020-12-21 23:15:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-21 23:15:17,407 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:17,407 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] [2020-12-21 23:15:17,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-21 23:15:17,408 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:17,408 INFO L82 PathProgramCache]: Analyzing trace with hash -744399452, now seen corresponding path program 1 times [2020-12-21 23:15:17,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:17,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004532327] [2020-12-21 23:15:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:17,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004532327] [2020-12-21 23:15:17,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:17,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:17,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115757320] [2020-12-21 23:15:17,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:17,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:17,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:17,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:17,455 INFO L87 Difference]: Start difference. First operand 542 states and 721 transitions. Second operand 4 states. [2020-12-21 23:15:17,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:17,680 INFO L93 Difference]: Finished difference Result 637 states and 833 transitions. [2020-12-21 23:15:17,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:17,680 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-12-21 23:15:17,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:17,683 INFO L225 Difference]: With dead ends: 637 [2020-12-21 23:15:17,683 INFO L226 Difference]: Without dead ends: 571 [2020-12-21 23:15:17,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:17,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-12-21 23:15:17,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 542. [2020-12-21 23:15:17,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-12-21 23:15:17,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 707 transitions. [2020-12-21 23:15:17,734 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 707 transitions. Word has length 33 [2020-12-21 23:15:17,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:17,734 INFO L481 AbstractCegarLoop]: Abstraction has 542 states and 707 transitions. [2020-12-21 23:15:17,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:17,735 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 707 transitions. [2020-12-21 23:15:17,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-21 23:15:17,736 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:17,736 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] [2020-12-21 23:15:17,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-21 23:15:17,736 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:17,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:17,737 INFO L82 PathProgramCache]: Analyzing trace with hash 536662182, now seen corresponding path program 1 times [2020-12-21 23:15:17,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:17,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678939218] [2020-12-21 23:15:17,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:17,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678939218] [2020-12-21 23:15:17,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:17,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-21 23:15:17,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809525907] [2020-12-21 23:15:17,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-21 23:15:17,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:17,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-21 23:15:17,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:17,790 INFO L87 Difference]: Start difference. First operand 542 states and 707 transitions. Second operand 5 states. [2020-12-21 23:15:17,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:17,896 INFO L93 Difference]: Finished difference Result 562 states and 727 transitions. [2020-12-21 23:15:17,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-21 23:15:17,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-12-21 23:15:17,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:17,899 INFO L225 Difference]: With dead ends: 562 [2020-12-21 23:15:17,899 INFO L226 Difference]: Without dead ends: 543 [2020-12-21 23:15:17,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:15:17,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-12-21 23:15:17,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 540. [2020-12-21 23:15:17,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2020-12-21 23:15:17,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 702 transitions. [2020-12-21 23:15:17,946 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 702 transitions. Word has length 34 [2020-12-21 23:15:17,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:17,946 INFO L481 AbstractCegarLoop]: Abstraction has 540 states and 702 transitions. [2020-12-21 23:15:17,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-21 23:15:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 702 transitions. [2020-12-21 23:15:17,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-21 23:15:17,947 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:17,948 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] [2020-12-21 23:15:17,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-21 23:15:17,948 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:17,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:17,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1675490409, now seen corresponding path program 1 times [2020-12-21 23:15:17,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:17,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779418952] [2020-12-21 23:15:17,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:17,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:17,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779418952] [2020-12-21 23:15:17,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:17,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:17,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092492626] [2020-12-21 23:15:17,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:17,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:17,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:17,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:17,990 INFO L87 Difference]: Start difference. First operand 540 states and 702 transitions. Second operand 3 states. [2020-12-21 23:15:18,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:18,072 INFO L93 Difference]: Finished difference Result 759 states and 970 transitions. [2020-12-21 23:15:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:18,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-12-21 23:15:18,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:18,075 INFO L225 Difference]: With dead ends: 759 [2020-12-21 23:15:18,075 INFO L226 Difference]: Without dead ends: 650 [2020-12-21 23:15:18,076 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 [2020-12-21 23:15:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-12-21 23:15:18,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 541. [2020-12-21 23:15:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-12-21 23:15:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 703 transitions. [2020-12-21 23:15:18,125 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 703 transitions. Word has length 34 [2020-12-21 23:15:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:18,126 INFO L481 AbstractCegarLoop]: Abstraction has 541 states and 703 transitions. [2020-12-21 23:15:18,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:18,126 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 703 transitions. [2020-12-21 23:15:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-21 23:15:18,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:18,127 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] [2020-12-21 23:15:18,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-21 23:15:18,128 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:18,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:18,128 INFO L82 PathProgramCache]: Analyzing trace with hash -930533145, now seen corresponding path program 1 times [2020-12-21 23:15:18,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:18,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736761842] [2020-12-21 23:15:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:18,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736761842] [2020-12-21 23:15:18,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:18,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:18,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59993373] [2020-12-21 23:15:18,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:18,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:18,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:18,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:18,175 INFO L87 Difference]: Start difference. First operand 541 states and 703 transitions. Second operand 4 states. [2020-12-21 23:15:18,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:18,277 INFO L93 Difference]: Finished difference Result 1236 states and 1594 transitions. [2020-12-21 23:15:18,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:18,278 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-21 23:15:18,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:18,281 INFO L225 Difference]: With dead ends: 1236 [2020-12-21 23:15:18,281 INFO L226 Difference]: Without dead ends: 704 [2020-12-21 23:15:18,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:18,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-12-21 23:15:18,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 600. [2020-12-21 23:15:18,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2020-12-21 23:15:18,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 773 transitions. [2020-12-21 23:15:18,358 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 773 transitions. Word has length 34 [2020-12-21 23:15:18,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:18,358 INFO L481 AbstractCegarLoop]: Abstraction has 600 states and 773 transitions. [2020-12-21 23:15:18,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:18,359 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 773 transitions. [2020-12-21 23:15:18,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-21 23:15:18,360 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:18,360 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] [2020-12-21 23:15:18,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-21 23:15:18,360 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:18,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:18,361 INFO L82 PathProgramCache]: Analyzing trace with hash -992572759, now seen corresponding path program 1 times [2020-12-21 23:15:18,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:18,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265711297] [2020-12-21 23:15:18,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:18,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265711297] [2020-12-21 23:15:18,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:18,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:18,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201172888] [2020-12-21 23:15:18,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:18,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:18,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:18,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:18,464 INFO L87 Difference]: Start difference. First operand 600 states and 773 transitions. Second operand 4 states. [2020-12-21 23:15:18,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:18,588 INFO L93 Difference]: Finished difference Result 789 states and 1014 transitions. [2020-12-21 23:15:18,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:18,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-21 23:15:18,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:18,591 INFO L225 Difference]: With dead ends: 789 [2020-12-21 23:15:18,591 INFO L226 Difference]: Without dead ends: 570 [2020-12-21 23:15:18,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:18,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-12-21 23:15:18,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 565. [2020-12-21 23:15:18,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-12-21 23:15:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 722 transitions. [2020-12-21 23:15:18,665 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 722 transitions. Word has length 34 [2020-12-21 23:15:18,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:18,666 INFO L481 AbstractCegarLoop]: Abstraction has 565 states and 722 transitions. [2020-12-21 23:15:18,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 722 transitions. [2020-12-21 23:15:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-21 23:15:18,667 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:18,667 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] [2020-12-21 23:15:18,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-21 23:15:18,667 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:18,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:18,668 INFO L82 PathProgramCache]: Analyzing trace with hash 813687739, now seen corresponding path program 1 times [2020-12-21 23:15:18,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:18,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760268317] [2020-12-21 23:15:18,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:18,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760268317] [2020-12-21 23:15:18,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:18,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:18,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570633430] [2020-12-21 23:15:18,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:18,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:18,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:18,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:18,703 INFO L87 Difference]: Start difference. First operand 565 states and 722 transitions. Second operand 4 states. [2020-12-21 23:15:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:18,924 INFO L93 Difference]: Finished difference Result 637 states and 807 transitions. [2020-12-21 23:15:18,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:18,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-12-21 23:15:18,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:18,928 INFO L225 Difference]: With dead ends: 637 [2020-12-21 23:15:18,928 INFO L226 Difference]: Without dead ends: 538 [2020-12-21 23:15:18,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:18,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-12-21 23:15:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 522. [2020-12-21 23:15:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-12-21 23:15:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 654 transitions. [2020-12-21 23:15:19,032 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 654 transitions. Word has length 35 [2020-12-21 23:15:19,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:19,032 INFO L481 AbstractCegarLoop]: Abstraction has 522 states and 654 transitions. [2020-12-21 23:15:19,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 654 transitions. [2020-12-21 23:15:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-21 23:15:19,033 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:19,033 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] [2020-12-21 23:15:19,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-21 23:15:19,034 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:19,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:19,035 INFO L82 PathProgramCache]: Analyzing trace with hash -759040003, now seen corresponding path program 1 times [2020-12-21 23:15:19,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:19,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817884504] [2020-12-21 23:15:19,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:19,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817884504] [2020-12-21 23:15:19,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:19,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:19,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278454789] [2020-12-21 23:15:19,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:19,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:19,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:19,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:19,067 INFO L87 Difference]: Start difference. First operand 522 states and 654 transitions. Second operand 3 states. [2020-12-21 23:15:19,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:19,249 INFO L93 Difference]: Finished difference Result 542 states and 671 transitions. [2020-12-21 23:15:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:19,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-21 23:15:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:19,252 INFO L225 Difference]: With dead ends: 542 [2020-12-21 23:15:19,252 INFO L226 Difference]: Without dead ends: 521 [2020-12-21 23:15:19,253 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 [2020-12-21 23:15:19,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-12-21 23:15:19,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 515. [2020-12-21 23:15:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-12-21 23:15:19,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 641 transitions. [2020-12-21 23:15:19,307 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 641 transitions. Word has length 35 [2020-12-21 23:15:19,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:19,307 INFO L481 AbstractCegarLoop]: Abstraction has 515 states and 641 transitions. [2020-12-21 23:15:19,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 641 transitions. [2020-12-21 23:15:19,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-21 23:15:19,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:19,308 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] [2020-12-21 23:15:19,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-21 23:15:19,309 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:19,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:19,309 INFO L82 PathProgramCache]: Analyzing trace with hash 111409610, now seen corresponding path program 1 times [2020-12-21 23:15:19,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:19,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257262029] [2020-12-21 23:15:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:19,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257262029] [2020-12-21 23:15:19,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:19,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:19,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490051869] [2020-12-21 23:15:19,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:19,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:19,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:19,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:19,356 INFO L87 Difference]: Start difference. First operand 515 states and 641 transitions. Second operand 4 states. [2020-12-21 23:15:19,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:19,556 INFO L93 Difference]: Finished difference Result 720 states and 898 transitions. [2020-12-21 23:15:19,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:19,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-12-21 23:15:19,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:19,559 INFO L225 Difference]: With dead ends: 720 [2020-12-21 23:15:19,559 INFO L226 Difference]: Without dead ends: 536 [2020-12-21 23:15:19,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:19,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-12-21 23:15:19,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 512. [2020-12-21 23:15:19,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-12-21 23:15:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 632 transitions. [2020-12-21 23:15:19,612 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 632 transitions. Word has length 35 [2020-12-21 23:15:19,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:19,613 INFO L481 AbstractCegarLoop]: Abstraction has 512 states and 632 transitions. [2020-12-21 23:15:19,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:19,613 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 632 transitions. [2020-12-21 23:15:19,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-21 23:15:19,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:19,614 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] [2020-12-21 23:15:19,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-21 23:15:19,615 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:19,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:19,615 INFO L82 PathProgramCache]: Analyzing trace with hash -949179113, now seen corresponding path program 1 times [2020-12-21 23:15:19,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:19,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855825460] [2020-12-21 23:15:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:19,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855825460] [2020-12-21 23:15:19,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:19,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:19,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203348916] [2020-12-21 23:15:19,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:19,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:19,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:19,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:19,642 INFO L87 Difference]: Start difference. First operand 512 states and 632 transitions. Second operand 3 states. [2020-12-21 23:15:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:19,721 INFO L93 Difference]: Finished difference Result 536 states and 657 transitions. [2020-12-21 23:15:19,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:19,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-12-21 23:15:19,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:19,725 INFO L225 Difference]: With dead ends: 536 [2020-12-21 23:15:19,725 INFO L226 Difference]: Without dead ends: 512 [2020-12-21 23:15:19,725 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 [2020-12-21 23:15:19,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-12-21 23:15:19,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 511. [2020-12-21 23:15:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2020-12-21 23:15:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 626 transitions. [2020-12-21 23:15:19,777 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 626 transitions. Word has length 36 [2020-12-21 23:15:19,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:19,777 INFO L481 AbstractCegarLoop]: Abstraction has 511 states and 626 transitions. [2020-12-21 23:15:19,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 626 transitions. [2020-12-21 23:15:19,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-21 23:15:19,778 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:19,779 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] [2020-12-21 23:15:19,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-21 23:15:19,779 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:19,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:19,780 INFO L82 PathProgramCache]: Analyzing trace with hash -2037812492, now seen corresponding path program 1 times [2020-12-21 23:15:19,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:19,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401618473] [2020-12-21 23:15:19,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:19,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401618473] [2020-12-21 23:15:19,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:19,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-21 23:15:19,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696856878] [2020-12-21 23:15:19,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-21 23:15:19,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:19,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-21 23:15:19,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-21 23:15:19,821 INFO L87 Difference]: Start difference. First operand 511 states and 626 transitions. Second operand 6 states. [2020-12-21 23:15:20,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:20,056 INFO L93 Difference]: Finished difference Result 529 states and 642 transitions. [2020-12-21 23:15:20,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-21 23:15:20,056 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-12-21 23:15:20,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:20,059 INFO L225 Difference]: With dead ends: 529 [2020-12-21 23:15:20,059 INFO L226 Difference]: Without dead ends: 526 [2020-12-21 23:15:20,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-21 23:15:20,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-12-21 23:15:20,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 517. [2020-12-21 23:15:20,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-12-21 23:15:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 632 transitions. [2020-12-21 23:15:20,114 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 632 transitions. Word has length 36 [2020-12-21 23:15:20,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:20,114 INFO L481 AbstractCegarLoop]: Abstraction has 517 states and 632 transitions. [2020-12-21 23:15:20,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-21 23:15:20,115 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 632 transitions. [2020-12-21 23:15:20,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-21 23:15:20,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:20,116 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] [2020-12-21 23:15:20,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-21 23:15:20,116 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:20,117 INFO L82 PathProgramCache]: Analyzing trace with hash -2037824408, now seen corresponding path program 1 times [2020-12-21 23:15:20,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:20,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272170333] [2020-12-21 23:15:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:20,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:20,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272170333] [2020-12-21 23:15:20,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:20,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-21 23:15:20,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832904063] [2020-12-21 23:15:20,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-21 23:15:20,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:20,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-21 23:15:20,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-21 23:15:20,159 INFO L87 Difference]: Start difference. First operand 517 states and 632 transitions. Second operand 6 states. [2020-12-21 23:15:20,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:20,459 INFO L93 Difference]: Finished difference Result 691 states and 830 transitions. [2020-12-21 23:15:20,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-21 23:15:20,460 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-12-21 23:15:20,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:20,463 INFO L225 Difference]: With dead ends: 691 [2020-12-21 23:15:20,463 INFO L226 Difference]: Without dead ends: 674 [2020-12-21 23:15:20,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-21 23:15:20,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-12-21 23:15:20,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 516. [2020-12-21 23:15:20,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-12-21 23:15:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 630 transitions. [2020-12-21 23:15:20,521 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 630 transitions. Word has length 36 [2020-12-21 23:15:20,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:20,521 INFO L481 AbstractCegarLoop]: Abstraction has 516 states and 630 transitions. [2020-12-21 23:15:20,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-21 23:15:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 630 transitions. [2020-12-21 23:15:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-21 23:15:20,523 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:20,523 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] [2020-12-21 23:15:20,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-21 23:15:20,523 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:20,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:20,524 INFO L82 PathProgramCache]: Analyzing trace with hash -187266092, now seen corresponding path program 1 times [2020-12-21 23:15:20,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:20,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582260130] [2020-12-21 23:15:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:20,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582260130] [2020-12-21 23:15:20,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:20,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:20,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218268703] [2020-12-21 23:15:20,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:20,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:20,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:20,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:20,578 INFO L87 Difference]: Start difference. First operand 516 states and 630 transitions. Second operand 4 states. [2020-12-21 23:15:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:20,751 INFO L93 Difference]: Finished difference Result 525 states and 637 transitions. [2020-12-21 23:15:20,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:15:20,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-12-21 23:15:20,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:20,754 INFO L225 Difference]: With dead ends: 525 [2020-12-21 23:15:20,754 INFO L226 Difference]: Without dead ends: 501 [2020-12-21 23:15:20,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:20,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2020-12-21 23:15:20,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 497. [2020-12-21 23:15:20,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-12-21 23:15:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 608 transitions. [2020-12-21 23:15:20,815 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 608 transitions. Word has length 37 [2020-12-21 23:15:20,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:20,815 INFO L481 AbstractCegarLoop]: Abstraction has 497 states and 608 transitions. [2020-12-21 23:15:20,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 608 transitions. [2020-12-21 23:15:20,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-21 23:15:20,816 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:20,817 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] [2020-12-21 23:15:20,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-21 23:15:20,817 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:20,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:20,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1481841291, now seen corresponding path program 1 times [2020-12-21 23:15:20,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:20,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200248967] [2020-12-21 23:15:20,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:20,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200248967] [2020-12-21 23:15:20,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:20,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:15:20,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079250318] [2020-12-21 23:15:20,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:15:20,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:20,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:15:20,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:15:20,852 INFO L87 Difference]: Start difference. First operand 497 states and 608 transitions. Second operand 4 states. [2020-12-21 23:15:20,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:20,929 INFO L93 Difference]: Finished difference Result 513 states and 622 transitions. [2020-12-21 23:15:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-21 23:15:20,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-12-21 23:15:20,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:20,932 INFO L225 Difference]: With dead ends: 513 [2020-12-21 23:15:20,932 INFO L226 Difference]: Without dead ends: 492 [2020-12-21 23:15:20,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:20,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-12-21 23:15:21,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 480. [2020-12-21 23:15:21,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-12-21 23:15:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 588 transitions. [2020-12-21 23:15:21,005 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 588 transitions. Word has length 38 [2020-12-21 23:15:21,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:21,006 INFO L481 AbstractCegarLoop]: Abstraction has 480 states and 588 transitions. [2020-12-21 23:15:21,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:15:21,006 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 588 transitions. [2020-12-21 23:15:21,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-21 23:15:21,007 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:21,007 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] [2020-12-21 23:15:21,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-21 23:15:21,007 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:21,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1021756590, now seen corresponding path program 1 times [2020-12-21 23:15:21,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:21,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568150445] [2020-12-21 23:15:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:21,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568150445] [2020-12-21 23:15:21,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:21,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:21,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406042538] [2020-12-21 23:15:21,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:21,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:21,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:21,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:21,036 INFO L87 Difference]: Start difference. First operand 480 states and 588 transitions. Second operand 3 states. [2020-12-21 23:15:21,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:21,200 INFO L93 Difference]: Finished difference Result 839 states and 1026 transitions. [2020-12-21 23:15:21,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:21,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-12-21 23:15:21,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:21,204 INFO L225 Difference]: With dead ends: 839 [2020-12-21 23:15:21,204 INFO L226 Difference]: Without dead ends: 658 [2020-12-21 23:15:21,205 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 [2020-12-21 23:15:21,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-12-21 23:15:21,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 483. [2020-12-21 23:15:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-12-21 23:15:21,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 591 transitions. [2020-12-21 23:15:21,264 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 591 transitions. Word has length 38 [2020-12-21 23:15:21,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:21,264 INFO L481 AbstractCegarLoop]: Abstraction has 483 states and 591 transitions. [2020-12-21 23:15:21,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:21,264 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 591 transitions. [2020-12-21 23:15:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-21 23:15:21,266 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:21,266 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] [2020-12-21 23:15:21,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-21 23:15:21,266 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:21,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:21,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1329794158, now seen corresponding path program 1 times [2020-12-21 23:15:21,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:21,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637831640] [2020-12-21 23:15:21,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:21,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:21,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637831640] [2020-12-21 23:15:21,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:21,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-21 23:15:21,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221510530] [2020-12-21 23:15:21,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-21 23:15:21,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:21,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-21 23:15:21,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:21,325 INFO L87 Difference]: Start difference. First operand 483 states and 591 transitions. Second operand 5 states. [2020-12-21 23:15:21,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:21,583 INFO L93 Difference]: Finished difference Result 824 states and 994 transitions. [2020-12-21 23:15:21,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-21 23:15:21,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-12-21 23:15:21,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:21,588 INFO L225 Difference]: With dead ends: 824 [2020-12-21 23:15:21,588 INFO L226 Difference]: Without dead ends: 668 [2020-12-21 23:15:21,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:15:21,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-12-21 23:15:21,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 483. [2020-12-21 23:15:21,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-12-21 23:15:21,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 587 transitions. [2020-12-21 23:15:21,666 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 587 transitions. Word has length 38 [2020-12-21 23:15:21,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:21,666 INFO L481 AbstractCegarLoop]: Abstraction has 483 states and 587 transitions. [2020-12-21 23:15:21,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-21 23:15:21,666 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 587 transitions. [2020-12-21 23:15:21,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-21 23:15:21,667 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:21,668 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] [2020-12-21 23:15:21,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-21 23:15:21,668 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:21,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:21,669 INFO L82 PathProgramCache]: Analyzing trace with hash 595887759, now seen corresponding path program 1 times [2020-12-21 23:15:21,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:21,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974438293] [2020-12-21 23:15:21,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:21,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:21,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974438293] [2020-12-21 23:15:21,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:21,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-21 23:15:21,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694629467] [2020-12-21 23:15:21,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-21 23:15:21,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:21,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-21 23:15:21,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:15:21,789 INFO L87 Difference]: Start difference. First operand 483 states and 587 transitions. Second operand 5 states. [2020-12-21 23:15:22,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:22,248 INFO L93 Difference]: Finished difference Result 946 states and 1156 transitions. [2020-12-21 23:15:22,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-21 23:15:22,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-21 23:15:22,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:22,255 INFO L225 Difference]: With dead ends: 946 [2020-12-21 23:15:22,255 INFO L226 Difference]: Without dead ends: 816 [2020-12-21 23:15:22,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-21 23:15:22,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2020-12-21 23:15:22,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 483. [2020-12-21 23:15:22,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-12-21 23:15:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 586 transitions. [2020-12-21 23:15:22,347 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 586 transitions. Word has length 41 [2020-12-21 23:15:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:22,347 INFO L481 AbstractCegarLoop]: Abstraction has 483 states and 586 transitions. [2020-12-21 23:15:22,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-21 23:15:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 586 transitions. [2020-12-21 23:15:22,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-21 23:15:22,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:22,348 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] [2020-12-21 23:15:22,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-21 23:15:22,349 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:22,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:22,349 INFO L82 PathProgramCache]: Analyzing trace with hash 768333102, now seen corresponding path program 1 times [2020-12-21 23:15:22,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:22,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138818474] [2020-12-21 23:15:22,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:22,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:22,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138818474] [2020-12-21 23:15:22,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:22,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-21 23:15:22,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135314610] [2020-12-21 23:15:22,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:15:22,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:22,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:15:22,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:15:22,425 INFO L87 Difference]: Start difference. First operand 483 states and 586 transitions. Second operand 7 states. [2020-12-21 23:15:22,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:22,723 INFO L93 Difference]: Finished difference Result 501 states and 603 transitions. [2020-12-21 23:15:22,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-21 23:15:22,723 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-12-21 23:15:22,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:22,725 INFO L225 Difference]: With dead ends: 501 [2020-12-21 23:15:22,726 INFO L226 Difference]: Without dead ends: 385 [2020-12-21 23:15:22,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-21 23:15:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-12-21 23:15:22,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 367. [2020-12-21 23:15:22,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-12-21 23:15:22,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 446 transitions. [2020-12-21 23:15:22,779 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 446 transitions. Word has length 41 [2020-12-21 23:15:22,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:22,779 INFO L481 AbstractCegarLoop]: Abstraction has 367 states and 446 transitions. [2020-12-21 23:15:22,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:15:22,779 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 446 transitions. [2020-12-21 23:15:22,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-21 23:15:22,783 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:22,783 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] [2020-12-21 23:15:22,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-21 23:15:22,783 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:22,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:22,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1022149612, now seen corresponding path program 1 times [2020-12-21 23:15:22,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:22,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931437087] [2020-12-21 23:15:22,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:22,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931437087] [2020-12-21 23:15:22,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:22,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:22,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558599214] [2020-12-21 23:15:22,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:22,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:22,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:22,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:22,837 INFO L87 Difference]: Start difference. First operand 367 states and 446 transitions. Second operand 3 states. [2020-12-21 23:15:22,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:22,944 INFO L93 Difference]: Finished difference Result 500 states and 615 transitions. [2020-12-21 23:15:22,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:22,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-21 23:15:22,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:22,946 INFO L225 Difference]: With dead ends: 500 [2020-12-21 23:15:22,946 INFO L226 Difference]: Without dead ends: 329 [2020-12-21 23:15:22,948 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 [2020-12-21 23:15:22,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-12-21 23:15:22,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2020-12-21 23:15:22,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-12-21 23:15:22,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 397 transitions. [2020-12-21 23:15:22,991 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 397 transitions. Word has length 45 [2020-12-21 23:15:22,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:22,992 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 397 transitions. [2020-12-21 23:15:22,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:22,992 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 397 transitions. [2020-12-21 23:15:22,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-21 23:15:22,997 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:22,997 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, 1, 1] [2020-12-21 23:15:22,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-21 23:15:22,997 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:22,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:22,998 INFO L82 PathProgramCache]: Analyzing trace with hash 632304062, now seen corresponding path program 1 times [2020-12-21 23:15:22,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:22,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884456583] [2020-12-21 23:15:22,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:23,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:23,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884456583] [2020-12-21 23:15:23,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:23,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-21 23:15:23,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054347423] [2020-12-21 23:15:23,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:15:23,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:23,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:15:23,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:15:23,066 INFO L87 Difference]: Start difference. First operand 329 states and 397 transitions. Second operand 7 states. [2020-12-21 23:15:23,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:23,314 INFO L93 Difference]: Finished difference Result 446 states and 530 transitions. [2020-12-21 23:15:23,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-21 23:15:23,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-12-21 23:15:23,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:23,317 INFO L225 Difference]: With dead ends: 446 [2020-12-21 23:15:23,317 INFO L226 Difference]: Without dead ends: 428 [2020-12-21 23:15:23,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-12-21 23:15:23,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-12-21 23:15:23,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 329. [2020-12-21 23:15:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-12-21 23:15:23,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 396 transitions. [2020-12-21 23:15:23,365 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 396 transitions. Word has length 51 [2020-12-21 23:15:23,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:23,365 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 396 transitions. [2020-12-21 23:15:23,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:15:23,365 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 396 transitions. [2020-12-21 23:15:23,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-21 23:15:23,366 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:23,367 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, 1, 1, 1, 1, 1] [2020-12-21 23:15:23,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-21 23:15:23,367 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:23,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:23,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1054423066, now seen corresponding path program 1 times [2020-12-21 23:15:23,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:23,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111292290] [2020-12-21 23:15:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:23,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111292290] [2020-12-21 23:15:23,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:23,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:23,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927553883] [2020-12-21 23:15:23,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:23,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:23,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:23,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:23,414 INFO L87 Difference]: Start difference. First operand 329 states and 396 transitions. Second operand 3 states. [2020-12-21 23:15:23,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:23,507 INFO L93 Difference]: Finished difference Result 575 states and 698 transitions. [2020-12-21 23:15:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:23,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-12-21 23:15:23,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:23,510 INFO L225 Difference]: With dead ends: 575 [2020-12-21 23:15:23,510 INFO L226 Difference]: Without dead ends: 383 [2020-12-21 23:15:23,510 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 [2020-12-21 23:15:23,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-12-21 23:15:23,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 329. [2020-12-21 23:15:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-12-21 23:15:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 392 transitions. [2020-12-21 23:15:23,560 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 392 transitions. Word has length 54 [2020-12-21 23:15:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:23,560 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 392 transitions. [2020-12-21 23:15:23,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 392 transitions. [2020-12-21 23:15:23,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-21 23:15:23,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:23,562 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, 1, 1, 1, 1, 1, 1] [2020-12-21 23:15:23,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-21 23:15:23,562 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:23,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:23,563 INFO L82 PathProgramCache]: Analyzing trace with hash 273758220, now seen corresponding path program 1 times [2020-12-21 23:15:23,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:23,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687594137] [2020-12-21 23:15:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-21 23:15:23,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-21 23:15:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-21 23:15:23,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-21 23:15:23,688 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-21 23:15:23,688 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-21 23:15:23,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-21 23:15:23,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:15:23 BoogieIcfgContainer [2020-12-21 23:15:23,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:15:23,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:15:23,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:15:23,851 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:15:23,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:15:12" (3/4) ... [2020-12-21 23:15:23,854 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-21 23:15:23,971 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ntdrivers-simplified/floppy_simpl3.cil-1.c-witness.graphml [2020-12-21 23:15:23,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:15:23,973 INFO L168 Benchmark]: Toolchain (without parser) took 14574.69 ms. Allocated memory was 151.0 MB in the beginning and 370.1 MB in the end (delta: 219.2 MB). Free memory was 126.1 MB in the beginning and 260.4 MB in the end (delta: -134.4 MB). Peak memory consumption was 85.3 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:23,973 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:15:23,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.64 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 104.4 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:23,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 167.19 ms. Allocated memory is still 151.0 MB. Free memory was 104.4 MB in the beginning and 129.8 MB in the end (delta: -25.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:23,974 INFO L168 Benchmark]: Boogie Preprocessor took 111.17 ms. Allocated memory is still 151.0 MB. Free memory was 129.8 MB in the beginning and 125.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:23,975 INFO L168 Benchmark]: RCFGBuilder took 1763.58 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 69.7 MB in the end (delta: 55.4 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:23,975 INFO L168 Benchmark]: TraceAbstraction took 11828.28 ms. Allocated memory was 151.0 MB in the beginning and 370.1 MB in the end (delta: 219.2 MB). Free memory was 69.7 MB in the beginning and 277.2 MB in the end (delta: -207.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:23,975 INFO L168 Benchmark]: Witness Printer took 120.01 ms. Allocated memory is still 370.1 MB. Free memory was 277.2 MB in the beginning and 260.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:23,977 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 573.64 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 104.4 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 167.19 ms. Allocated memory is still 151.0 MB. Free memory was 104.4 MB in the beginning and 129.8 MB in the end (delta: -25.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.17 ms. Allocated memory is still 151.0 MB. Free memory was 129.8 MB in the beginning and 125.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1763.58 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 69.7 MB in the end (delta: 55.4 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11828.28 ms. Allocated memory was 151.0 MB in the beginning and 370.1 MB in the end (delta: 219.2 MB). Free memory was 69.7 MB in the beginning and 277.2 MB in the end (delta: -207.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 8.0 GB. * Witness Printer took 120.01 ms. Allocated memory is still 370.1 MB. Free memory was 277.2 MB in the beginning and 260.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 65]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] COND TRUE PagingReferenceCount == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L160] return (259); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L [L1036] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1045] COND FALSE !(customIrp == 1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1049] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1064] return (0); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] COND TRUE disketteExtension__FloppyThread != 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L970] returnVal2 = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1006] return (returnVal2); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] COND TRUE PagingReferenceCount == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L434] return (ntStatus); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L783] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 421 locations, 41 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.6s, OverallIterations: 37, TraceHistogramMax: 1, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15768 SDtfs, 11585 SDslu, 19000 SDs, 0 SdLazy, 3104 SolverSat, 424 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=600occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 36 MinimizatonAttempts, 2474 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1193 NumberOfCodeBlocks, 1193 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 1102 ConstructedInterpolants, 0 QuantifiedInterpolants, 86188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...