/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/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:16:03,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:16:03,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:16:03,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-21 23:16:03,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-21 23:16:03,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-21 23:16:03,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-21 23:16:03,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-21 23:16:03,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-21 23:16:03,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-21 23:16:03,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-21 23:16:03,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-21 23:16:03,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:16:03,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:16:03,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:16:03,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:16:03,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:16:03,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:16:03,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:16:03,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:16:03,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:16:03,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:16:03,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:16:03,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:16:03,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-21 23:16:03,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-21 23:16:03,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-21 23:16:03,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-21 23:16:03,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-21 23:16:03,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-21 23:16:03,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-21 23:16:03,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-21 23:16:03,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-21 23:16:03,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-21 23:16:03,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-21 23:16:03,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-21 23:16:03,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-21 23:16:03,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-21 23:16:03,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:16:03,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:16:03,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:16:03,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:16:03,792 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:16:03,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:16:03,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:16:03,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:16:03,794 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:16:03,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:16:03,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:16:03,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:16:03,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:16:03,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:16:03,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:16:03,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:16:03,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:16:03,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:16:03,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:16:03,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:16:03,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:16:03,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:16:03,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:16:03,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:16:03,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:16:03,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:16:03,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:16:03,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:16:03,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:16:03,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:16:04,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:16:04,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:16:04,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:16:04,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:16:04,270 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:16:04,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-12-21 23:16:04,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bed62862/18fa7e45b4f24e0da1fb5b599ff97d5f/FLAG0ce03d015 [2020-12-21 23:16:05,066 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:16:05,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-12-21 23:16:05,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bed62862/18fa7e45b4f24e0da1fb5b599ff97d5f/FLAG0ce03d015 [2020-12-21 23:16:05,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bed62862/18fa7e45b4f24e0da1fb5b599ff97d5f [2020-12-21 23:16:05,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:16:05,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:16:05,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:16:05,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:16:05,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:16:05,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:16:05" (1/1) ... [2020-12-21 23:16:05,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff1aeca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:05, skipping insertion in model container [2020-12-21 23:16:05,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:16:05" (1/1) ... [2020-12-21 23:16:05,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:16:05,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:16:05,824 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/kbfiltr_simpl2.cil-2.c[29656,29669] [2020-12-21 23:16:05,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:16:05,840 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:16:05,970 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/kbfiltr_simpl2.cil-2.c[29656,29669] [2020-12-21 23:16:05,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:16:06,002 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:16:06,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06 WrapperNode [2020-12-21 23:16:06,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:16:06,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:16:06,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:16:06,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:16:06,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (1/1) ... [2020-12-21 23:16:06,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (1/1) ... [2020-12-21 23:16:06,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:16:06,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:16:06,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:16:06,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:16:06,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (1/1) ... [2020-12-21 23:16:06,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (1/1) ... [2020-12-21 23:16:06,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (1/1) ... [2020-12-21 23:16:06,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (1/1) ... [2020-12-21 23:16:06,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (1/1) ... [2020-12-21 23:16:06,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (1/1) ... [2020-12-21 23:16:06,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (1/1) ... [2020-12-21 23:16:06,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:16:06,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:16:06,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:16:06,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:16:06,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (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 23:16:06,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:16:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:16:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:16:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:16:06,639 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,650 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,664 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,678 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,687 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,701 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,720 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,738 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,761 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,769 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,784 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:06,819 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-21 23:16:07,920 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2020-12-21 23:16:07,920 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2020-12-21 23:16:07,920 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2020-12-21 23:16:07,921 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2020-12-21 23:16:07,921 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##219: assume false; [2020-12-21 23:16:07,921 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume !false; [2020-12-21 23:16:07,921 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2020-12-21 23:16:07,921 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2020-12-21 23:16:07,922 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##322: assume !false; [2020-12-21 23:16:07,922 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##321: assume false; [2020-12-21 23:16:07,922 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-12-21 23:16:07,922 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-12-21 23:16:07,923 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2020-12-21 23:16:07,923 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2020-12-21 23:16:07,923 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2020-12-21 23:16:07,923 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2020-12-21 23:16:07,923 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume false; [2020-12-21 23:16:07,924 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume !false; [2020-12-21 23:16:07,924 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##389: assume !false; [2020-12-21 23:16:07,924 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##388: assume false; [2020-12-21 23:16:07,924 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-12-21 23:16:07,924 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-12-21 23:16:07,924 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !false; [2020-12-21 23:16:07,925 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume false; [2020-12-21 23:16:07,939 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:16:07,939 INFO L299 CfgBuilder]: Removed 154 assume(true) statements. [2020-12-21 23:16:07,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:16:07 BoogieIcfgContainer [2020-12-21 23:16:07,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:16:07,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:16:07,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:16:07,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:16:07,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:16:05" (1/3) ... [2020-12-21 23:16:07,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea10eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:16:07, skipping insertion in model container [2020-12-21 23:16:07,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:06" (2/3) ... [2020-12-21 23:16:07,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea10eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:16:07, skipping insertion in model container [2020-12-21 23:16:07,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:16:07" (3/3) ... [2020-12-21 23:16:07,951 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-12-21 23:16:07,959 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:16:07,964 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2020-12-21 23:16:07,985 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2020-12-21 23:16:08,017 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:16:08,018 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:16:08,018 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:16:08,018 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:16:08,018 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:16:08,018 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:16:08,018 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:16:08,019 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:16:08,047 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states. [2020-12-21 23:16:08,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-21 23:16:08,054 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:08,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:08,056 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:08,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:08,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1766777508, now seen corresponding path program 1 times [2020-12-21 23:16:08,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:08,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096015292] [2020-12-21 23:16:08,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:08,298 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 23:16:08,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096015292] [2020-12-21 23:16:08,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:08,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:08,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22441779] [2020-12-21 23:16:08,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:08,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:08,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:08,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:08,326 INFO L87 Difference]: Start difference. First operand 330 states. Second operand 3 states. [2020-12-21 23:16:08,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:08,436 INFO L93 Difference]: Finished difference Result 578 states and 842 transitions. [2020-12-21 23:16:08,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:08,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-21 23:16:08,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:08,455 INFO L225 Difference]: With dead ends: 578 [2020-12-21 23:16:08,455 INFO L226 Difference]: Without dead ends: 324 [2020-12-21 23:16:08,464 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 23:16:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-12-21 23:16:08,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-12-21 23:16:08,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-12-21 23:16:08,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 442 transitions. [2020-12-21 23:16:08,562 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 442 transitions. Word has length 11 [2020-12-21 23:16:08,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:08,563 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 442 transitions. [2020-12-21 23:16:08,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:08,563 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 442 transitions. [2020-12-21 23:16:08,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-21 23:16:08,564 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:08,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:08,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:16:08,565 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:08,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:08,567 INFO L82 PathProgramCache]: Analyzing trace with hash 557701687, now seen corresponding path program 1 times [2020-12-21 23:16:08,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:08,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770056754] [2020-12-21 23:16:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:08,728 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 23:16:08,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770056754] [2020-12-21 23:16:08,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:08,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:08,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362387252] [2020-12-21 23:16:08,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:08,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:08,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:08,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:08,733 INFO L87 Difference]: Start difference. First operand 324 states and 442 transitions. Second operand 3 states. [2020-12-21 23:16:09,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:09,021 INFO L93 Difference]: Finished difference Result 433 states and 577 transitions. [2020-12-21 23:16:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:09,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-21 23:16:09,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:09,025 INFO L225 Difference]: With dead ends: 433 [2020-12-21 23:16:09,026 INFO L226 Difference]: Without dead ends: 368 [2020-12-21 23:16:09,027 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 23:16:09,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-12-21 23:16:09,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 351. [2020-12-21 23:16:09,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-12-21 23:16:09,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 479 transitions. [2020-12-21 23:16:09,058 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 479 transitions. Word has length 13 [2020-12-21 23:16:09,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:09,058 INFO L481 AbstractCegarLoop]: Abstraction has 351 states and 479 transitions. [2020-12-21 23:16:09,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:09,059 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 479 transitions. [2020-12-21 23:16:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-21 23:16:09,060 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:09,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:09,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-21 23:16:09,061 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:09,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:09,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1900748477, now seen corresponding path program 1 times [2020-12-21 23:16:09,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:09,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646753522] [2020-12-21 23:16:09,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:09,131 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 23:16:09,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646753522] [2020-12-21 23:16:09,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:09,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:09,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106314776] [2020-12-21 23:16:09,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:09,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:09,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:09,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:09,135 INFO L87 Difference]: Start difference. First operand 351 states and 479 transitions. Second operand 3 states. [2020-12-21 23:16:09,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:09,204 INFO L93 Difference]: Finished difference Result 554 states and 735 transitions. [2020-12-21 23:16:09,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:09,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-21 23:16:09,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:09,209 INFO L225 Difference]: With dead ends: 554 [2020-12-21 23:16:09,209 INFO L226 Difference]: Without dead ends: 362 [2020-12-21 23:16:09,214 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 23:16:09,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-12-21 23:16:09,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 307. [2020-12-21 23:16:09,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-12-21 23:16:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 421 transitions. [2020-12-21 23:16:09,253 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 421 transitions. Word has length 15 [2020-12-21 23:16:09,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:09,254 INFO L481 AbstractCegarLoop]: Abstraction has 307 states and 421 transitions. [2020-12-21 23:16:09,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:09,254 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 421 transitions. [2020-12-21 23:16:09,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-21 23:16:09,263 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:09,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:09,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-21 23:16:09,264 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:09,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:09,266 INFO L82 PathProgramCache]: Analyzing trace with hash 306593718, now seen corresponding path program 1 times [2020-12-21 23:16:09,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:09,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297372388] [2020-12-21 23:16:09,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:09,408 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 23:16:09,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297372388] [2020-12-21 23:16:09,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:09,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:09,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672633720] [2020-12-21 23:16:09,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:09,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:09,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:09,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:09,415 INFO L87 Difference]: Start difference. First operand 307 states and 421 transitions. Second operand 3 states. [2020-12-21 23:16:09,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:09,584 INFO L93 Difference]: Finished difference Result 307 states and 421 transitions. [2020-12-21 23:16:09,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:09,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-21 23:16:09,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:09,587 INFO L225 Difference]: With dead ends: 307 [2020-12-21 23:16:09,587 INFO L226 Difference]: Without dead ends: 293 [2020-12-21 23:16:09,588 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 23:16:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-12-21 23:16:09,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2020-12-21 23:16:09,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-12-21 23:16:09,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 407 transitions. [2020-12-21 23:16:09,604 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 407 transitions. Word has length 21 [2020-12-21 23:16:09,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:09,604 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 407 transitions. [2020-12-21 23:16:09,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 407 transitions. [2020-12-21 23:16:09,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-21 23:16:09,606 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:09,606 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 23:16:09,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-21 23:16:09,606 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:09,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:09,607 INFO L82 PathProgramCache]: Analyzing trace with hash 847063989, now seen corresponding path program 1 times [2020-12-21 23:16:09,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:09,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419984556] [2020-12-21 23:16:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:09,743 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 23:16:09,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419984556] [2020-12-21 23:16:09,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:09,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:16:09,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691028895] [2020-12-21 23:16:09,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:16:09,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:09,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:16:09,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:16:09,749 INFO L87 Difference]: Start difference. First operand 293 states and 407 transitions. Second operand 4 states. [2020-12-21 23:16:09,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:09,950 INFO L93 Difference]: Finished difference Result 318 states and 435 transitions. [2020-12-21 23:16:09,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:16:09,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-21 23:16:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:09,953 INFO L225 Difference]: With dead ends: 318 [2020-12-21 23:16:09,953 INFO L226 Difference]: Without dead ends: 309 [2020-12-21 23:16:09,954 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 23:16:09,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-12-21 23:16:09,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 305. [2020-12-21 23:16:09,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-12-21 23:16:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 422 transitions. [2020-12-21 23:16:09,979 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 422 transitions. Word has length 26 [2020-12-21 23:16:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:09,979 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 422 transitions. [2020-12-21 23:16:09,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:16:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 422 transitions. [2020-12-21 23:16:09,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-21 23:16:09,981 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:09,981 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] [2020-12-21 23:16:09,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-21 23:16:09,981 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:09,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:09,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1660315800, now seen corresponding path program 1 times [2020-12-21 23:16:09,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:09,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757281928] [2020-12-21 23:16:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:10,025 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 23:16:10,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757281928] [2020-12-21 23:16:10,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:10,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:10,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196815360] [2020-12-21 23:16:10,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:10,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:10,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:10,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:10,028 INFO L87 Difference]: Start difference. First operand 305 states and 422 transitions. Second operand 3 states. [2020-12-21 23:16:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:10,166 INFO L93 Difference]: Finished difference Result 349 states and 478 transitions. [2020-12-21 23:16:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:10,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-12-21 23:16:10,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:10,169 INFO L225 Difference]: With dead ends: 349 [2020-12-21 23:16:10,170 INFO L226 Difference]: Without dead ends: 302 [2020-12-21 23:16:10,170 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 23:16:10,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-12-21 23:16:10,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2020-12-21 23:16:10,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-12-21 23:16:10,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 418 transitions. [2020-12-21 23:16:10,190 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 418 transitions. Word has length 27 [2020-12-21 23:16:10,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:10,190 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 418 transitions. [2020-12-21 23:16:10,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:10,190 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 418 transitions. [2020-12-21 23:16:10,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-21 23:16:10,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:10,192 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] [2020-12-21 23:16:10,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-21 23:16:10,192 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:10,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:10,193 INFO L82 PathProgramCache]: Analyzing trace with hash -23036524, now seen corresponding path program 1 times [2020-12-21 23:16:10,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:10,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127935742] [2020-12-21 23:16:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:10,229 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 23:16:10,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127935742] [2020-12-21 23:16:10,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:10,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:10,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119075670] [2020-12-21 23:16:10,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:10,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:10,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:10,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:10,232 INFO L87 Difference]: Start difference. First operand 302 states and 418 transitions. Second operand 3 states. [2020-12-21 23:16:10,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:10,268 INFO L93 Difference]: Finished difference Result 366 states and 498 transitions. [2020-12-21 23:16:10,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:10,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-12-21 23:16:10,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:10,271 INFO L225 Difference]: With dead ends: 366 [2020-12-21 23:16:10,271 INFO L226 Difference]: Without dead ends: 315 [2020-12-21 23:16:10,272 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 23:16:10,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-12-21 23:16:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 302. [2020-12-21 23:16:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-12-21 23:16:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 417 transitions. [2020-12-21 23:16:10,293 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 417 transitions. Word has length 27 [2020-12-21 23:16:10,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:10,293 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 417 transitions. [2020-12-21 23:16:10,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:10,294 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 417 transitions. [2020-12-21 23:16:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-21 23:16:10,295 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:10,295 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] [2020-12-21 23:16:10,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-21 23:16:10,295 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:10,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:10,296 INFO L82 PathProgramCache]: Analyzing trace with hash 476963846, now seen corresponding path program 1 times [2020-12-21 23:16:10,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:10,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35924871] [2020-12-21 23:16:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:10,365 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 23:16:10,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35924871] [2020-12-21 23:16:10,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:10,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:16:10,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849968753] [2020-12-21 23:16:10,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:16:10,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:10,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:16:10,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:16:10,368 INFO L87 Difference]: Start difference. First operand 302 states and 417 transitions. Second operand 4 states. [2020-12-21 23:16:10,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:10,539 INFO L93 Difference]: Finished difference Result 310 states and 423 transitions. [2020-12-21 23:16:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:16:10,540 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-12-21 23:16:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:10,544 INFO L225 Difference]: With dead ends: 310 [2020-12-21 23:16:10,544 INFO L226 Difference]: Without dead ends: 306 [2020-12-21 23:16:10,545 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 23:16:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-12-21 23:16:10,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 302. [2020-12-21 23:16:10,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-12-21 23:16:10,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 416 transitions. [2020-12-21 23:16:10,576 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 416 transitions. Word has length 27 [2020-12-21 23:16:10,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:10,577 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 416 transitions. [2020-12-21 23:16:10,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:16:10,578 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 416 transitions. [2020-12-21 23:16:10,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-21 23:16:10,581 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:10,581 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 23:16:10,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-21 23:16:10,583 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:10,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:10,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1894183263, now seen corresponding path program 1 times [2020-12-21 23:16:10,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:10,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812497500] [2020-12-21 23:16:10,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:10,643 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 23:16:10,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812497500] [2020-12-21 23:16:10,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:10,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:10,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148735101] [2020-12-21 23:16:10,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:10,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:10,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:10,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:10,653 INFO L87 Difference]: Start difference. First operand 302 states and 416 transitions. Second operand 3 states. [2020-12-21 23:16:10,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:10,689 INFO L93 Difference]: Finished difference Result 319 states and 437 transitions. [2020-12-21 23:16:10,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:10,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-12-21 23:16:10,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:10,695 INFO L225 Difference]: With dead ends: 319 [2020-12-21 23:16:10,697 INFO L226 Difference]: Without dead ends: 273 [2020-12-21 23:16:10,698 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 23:16:10,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-12-21 23:16:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 249. [2020-12-21 23:16:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-12-21 23:16:10,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 347 transitions. [2020-12-21 23:16:10,722 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 347 transitions. Word has length 28 [2020-12-21 23:16:10,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:10,723 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 347 transitions. [2020-12-21 23:16:10,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 347 transitions. [2020-12-21 23:16:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-21 23:16:10,725 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:10,725 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] [2020-12-21 23:16:10,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-21 23:16:10,726 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:10,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:10,726 INFO L82 PathProgramCache]: Analyzing trace with hash 403678015, now seen corresponding path program 1 times [2020-12-21 23:16:10,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:10,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915507092] [2020-12-21 23:16:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:10,794 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 23:16:10,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915507092] [2020-12-21 23:16:10,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:10,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-21 23:16:10,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145542766] [2020-12-21 23:16:10,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-21 23:16:10,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:10,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-21 23:16:10,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:16:10,798 INFO L87 Difference]: Start difference. First operand 249 states and 347 transitions. Second operand 5 states. [2020-12-21 23:16:11,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:11,040 INFO L93 Difference]: Finished difference Result 410 states and 537 transitions. [2020-12-21 23:16:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-21 23:16:11,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-12-21 23:16:11,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:11,043 INFO L225 Difference]: With dead ends: 410 [2020-12-21 23:16:11,043 INFO L226 Difference]: Without dead ends: 359 [2020-12-21 23:16:11,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-21 23:16:11,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-12-21 23:16:11,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 284. [2020-12-21 23:16:11,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-12-21 23:16:11,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 399 transitions. [2020-12-21 23:16:11,067 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 399 transitions. Word has length 30 [2020-12-21 23:16:11,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:11,069 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 399 transitions. [2020-12-21 23:16:11,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-21 23:16:11,069 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 399 transitions. [2020-12-21 23:16:11,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-21 23:16:11,070 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:11,071 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] [2020-12-21 23:16:11,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-21 23:16:11,071 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:11,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:11,072 INFO L82 PathProgramCache]: Analyzing trace with hash 361661719, now seen corresponding path program 1 times [2020-12-21 23:16:11,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:11,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008327552] [2020-12-21 23:16:11,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:11,144 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 23:16:11,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008327552] [2020-12-21 23:16:11,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:11,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-21 23:16:11,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377604503] [2020-12-21 23:16:11,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-21 23:16:11,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:11,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-21 23:16:11,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:16:11,148 INFO L87 Difference]: Start difference. First operand 284 states and 399 transitions. Second operand 5 states. [2020-12-21 23:16:11,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:11,385 INFO L93 Difference]: Finished difference Result 341 states and 456 transitions. [2020-12-21 23:16:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-21 23:16:11,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-12-21 23:16:11,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:11,389 INFO L225 Difference]: With dead ends: 341 [2020-12-21 23:16:11,389 INFO L226 Difference]: Without dead ends: 315 [2020-12-21 23:16:11,390 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 23:16:11,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-12-21 23:16:11,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-12-21 23:16:11,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-12-21 23:16:11,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 381 transitions. [2020-12-21 23:16:11,421 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 381 transitions. Word has length 30 [2020-12-21 23:16:11,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:11,421 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 381 transitions. [2020-12-21 23:16:11,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-21 23:16:11,422 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 381 transitions. [2020-12-21 23:16:11,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-21 23:16:11,424 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:11,424 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] [2020-12-21 23:16:11,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-21 23:16:11,425 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:11,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:11,436 INFO L82 PathProgramCache]: Analyzing trace with hash -959450186, now seen corresponding path program 1 times [2020-12-21 23:16:11,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:11,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687371279] [2020-12-21 23:16:11,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:11,508 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 23:16:11,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687371279] [2020-12-21 23:16:11,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:11,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:16:11,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312943799] [2020-12-21 23:16:11,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:16:11,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:11,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:16:11,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:16:11,512 INFO L87 Difference]: Start difference. First operand 271 states and 381 transitions. Second operand 4 states. [2020-12-21 23:16:11,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:11,669 INFO L93 Difference]: Finished difference Result 305 states and 415 transitions. [2020-12-21 23:16:11,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:16:11,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-12-21 23:16:11,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:11,672 INFO L225 Difference]: With dead ends: 305 [2020-12-21 23:16:11,672 INFO L226 Difference]: Without dead ends: 271 [2020-12-21 23:16:11,672 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 23:16:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-12-21 23:16:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-12-21 23:16:11,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-12-21 23:16:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 368 transitions. [2020-12-21 23:16:11,695 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 368 transitions. Word has length 31 [2020-12-21 23:16:11,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:11,697 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 368 transitions. [2020-12-21 23:16:11,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:16:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 368 transitions. [2020-12-21 23:16:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-21 23:16:11,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:11,702 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] [2020-12-21 23:16:11,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-21 23:16:11,703 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:11,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:11,704 INFO L82 PathProgramCache]: Analyzing trace with hash -378484437, now seen corresponding path program 1 times [2020-12-21 23:16:11,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:11,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772582695] [2020-12-21 23:16:11,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:11,746 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 23:16:11,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772582695] [2020-12-21 23:16:11,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:11,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:11,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204694756] [2020-12-21 23:16:11,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:11,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:11,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:11,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:11,748 INFO L87 Difference]: Start difference. First operand 271 states and 368 transitions. Second operand 3 states. [2020-12-21 23:16:11,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:11,816 INFO L93 Difference]: Finished difference Result 499 states and 682 transitions. [2020-12-21 23:16:11,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:11,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-21 23:16:11,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:11,820 INFO L225 Difference]: With dead ends: 499 [2020-12-21 23:16:11,820 INFO L226 Difference]: Without dead ends: 495 [2020-12-21 23:16:11,820 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 23:16:11,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-12-21 23:16:11,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 321. [2020-12-21 23:16:11,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-12-21 23:16:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 434 transitions. [2020-12-21 23:16:11,852 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 434 transitions. Word has length 31 [2020-12-21 23:16:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:11,853 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 434 transitions. [2020-12-21 23:16:11,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 434 transitions. [2020-12-21 23:16:11,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-21 23:16:11,854 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:11,854 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] [2020-12-21 23:16:11,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-21 23:16:11,854 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:11,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:11,855 INFO L82 PathProgramCache]: Analyzing trace with hash -378424855, now seen corresponding path program 1 times [2020-12-21 23:16:11,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:11,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784221371] [2020-12-21 23:16:11,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:11,901 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 23:16:11,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784221371] [2020-12-21 23:16:11,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:11,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:16:11,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316373274] [2020-12-21 23:16:11,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:16:11,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:11,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:16:11,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:16:11,903 INFO L87 Difference]: Start difference. First operand 321 states and 434 transitions. Second operand 4 states. [2020-12-21 23:16:11,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:11,972 INFO L93 Difference]: Finished difference Result 367 states and 489 transitions. [2020-12-21 23:16:11,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:16:11,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-12-21 23:16:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:11,975 INFO L225 Difference]: With dead ends: 367 [2020-12-21 23:16:11,975 INFO L226 Difference]: Without dead ends: 309 [2020-12-21 23:16:11,975 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 23:16:11,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-12-21 23:16:12,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2020-12-21 23:16:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-12-21 23:16:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 416 transitions. [2020-12-21 23:16:12,005 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 416 transitions. Word has length 31 [2020-12-21 23:16:12,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:12,005 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 416 transitions. [2020-12-21 23:16:12,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:16:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 416 transitions. [2020-12-21 23:16:12,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-21 23:16:12,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:12,007 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] [2020-12-21 23:16:12,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-21 23:16:12,007 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:12,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:12,008 INFO L82 PathProgramCache]: Analyzing trace with hash -329006014, now seen corresponding path program 1 times [2020-12-21 23:16:12,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:12,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44706012] [2020-12-21 23:16:12,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:12,056 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 23:16:12,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44706012] [2020-12-21 23:16:12,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:12,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:16:12,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676784526] [2020-12-21 23:16:12,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:16:12,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:12,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:16:12,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:16:12,058 INFO L87 Difference]: Start difference. First operand 309 states and 416 transitions. Second operand 4 states. [2020-12-21 23:16:12,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:12,211 INFO L93 Difference]: Finished difference Result 343 states and 459 transitions. [2020-12-21 23:16:12,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:16:12,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-12-21 23:16:12,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:12,214 INFO L225 Difference]: With dead ends: 343 [2020-12-21 23:16:12,214 INFO L226 Difference]: Without dead ends: 297 [2020-12-21 23:16:12,214 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 23:16:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-12-21 23:16:12,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2020-12-21 23:16:12,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-12-21 23:16:12,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 400 transitions. [2020-12-21 23:16:12,244 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 400 transitions. Word has length 32 [2020-12-21 23:16:12,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:12,245 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 400 transitions. [2020-12-21 23:16:12,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:16:12,245 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 400 transitions. [2020-12-21 23:16:12,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-21 23:16:12,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:12,246 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 23:16:12,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-21 23:16:12,246 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:12,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:12,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2012498225, now seen corresponding path program 1 times [2020-12-21 23:16:12,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:12,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056259820] [2020-12-21 23:16:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:12,296 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 23:16:12,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056259820] [2020-12-21 23:16:12,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:12,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-21 23:16:12,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987523667] [2020-12-21 23:16:12,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:16:12,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:12,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:16:12,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:16:12,299 INFO L87 Difference]: Start difference. First operand 297 states and 400 transitions. Second operand 7 states. [2020-12-21 23:16:12,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:12,582 INFO L93 Difference]: Finished difference Result 330 states and 433 transitions. [2020-12-21 23:16:12,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-21 23:16:12,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-12-21 23:16:12,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:12,585 INFO L225 Difference]: With dead ends: 330 [2020-12-21 23:16:12,585 INFO L226 Difference]: Without dead ends: 267 [2020-12-21 23:16:12,586 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 23:16:12,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-12-21 23:16:12,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 245. [2020-12-21 23:16:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-12-21 23:16:12,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 328 transitions. [2020-12-21 23:16:12,610 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 328 transitions. Word has length 33 [2020-12-21 23:16:12,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:12,610 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 328 transitions. [2020-12-21 23:16:12,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:16:12,610 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 328 transitions. [2020-12-21 23:16:12,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-21 23:16:12,611 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:12,611 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 23:16:12,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-21 23:16:12,611 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:12,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:12,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1781478438, now seen corresponding path program 1 times [2020-12-21 23:16:12,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:12,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157808534] [2020-12-21 23:16:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:12,641 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 23:16:12,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157808534] [2020-12-21 23:16:12,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:12,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:12,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502918978] [2020-12-21 23:16:12,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:12,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:12,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:12,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:12,644 INFO L87 Difference]: Start difference. First operand 245 states and 328 transitions. Second operand 3 states. [2020-12-21 23:16:12,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:12,745 INFO L93 Difference]: Finished difference Result 356 states and 458 transitions. [2020-12-21 23:16:12,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:12,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-12-21 23:16:12,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:12,748 INFO L225 Difference]: With dead ends: 356 [2020-12-21 23:16:12,748 INFO L226 Difference]: Without dead ends: 299 [2020-12-21 23:16:12,749 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 23:16:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-12-21 23:16:12,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 247. [2020-12-21 23:16:12,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-12-21 23:16:12,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 330 transitions. [2020-12-21 23:16:12,774 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 330 transitions. Word has length 34 [2020-12-21 23:16:12,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:12,774 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 330 transitions. [2020-12-21 23:16:12,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:12,775 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 330 transitions. [2020-12-21 23:16:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-21 23:16:12,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:12,776 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 23:16:12,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-21 23:16:12,776 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:12,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:12,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1662125936, now seen corresponding path program 1 times [2020-12-21 23:16:12,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:12,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689991551] [2020-12-21 23:16:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:12,806 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 23:16:12,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689991551] [2020-12-21 23:16:12,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:12,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:12,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839086209] [2020-12-21 23:16:12,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:12,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:12,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:12,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:12,808 INFO L87 Difference]: Start difference. First operand 247 states and 330 transitions. Second operand 3 states. [2020-12-21 23:16:12,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:12,901 INFO L93 Difference]: Finished difference Result 263 states and 349 transitions. [2020-12-21 23:16:12,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:12,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-12-21 23:16:12,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:12,903 INFO L225 Difference]: With dead ends: 263 [2020-12-21 23:16:12,903 INFO L226 Difference]: Without dead ends: 259 [2020-12-21 23:16:12,904 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 23:16:12,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-12-21 23:16:12,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 251. [2020-12-21 23:16:12,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-12-21 23:16:12,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 333 transitions. [2020-12-21 23:16:12,927 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 333 transitions. Word has length 34 [2020-12-21 23:16:12,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:12,928 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 333 transitions. [2020-12-21 23:16:12,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:12,928 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 333 transitions. [2020-12-21 23:16:12,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-21 23:16:12,929 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:12,929 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 23:16:12,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-21 23:16:12,929 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:12,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:12,930 INFO L82 PathProgramCache]: Analyzing trace with hash -822248422, now seen corresponding path program 1 times [2020-12-21 23:16:12,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:12,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117268185] [2020-12-21 23:16:12,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:12,972 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 23:16:12,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117268185] [2020-12-21 23:16:12,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:12,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-21 23:16:12,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176127801] [2020-12-21 23:16:12,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-21 23:16:12,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:12,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-21 23:16:12,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:16:12,974 INFO L87 Difference]: Start difference. First operand 251 states and 333 transitions. Second operand 5 states. [2020-12-21 23:16:13,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:13,132 INFO L93 Difference]: Finished difference Result 304 states and 384 transitions. [2020-12-21 23:16:13,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-21 23:16:13,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-12-21 23:16:13,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:13,134 INFO L225 Difference]: With dead ends: 304 [2020-12-21 23:16:13,134 INFO L226 Difference]: Without dead ends: 300 [2020-12-21 23:16:13,135 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 23:16:13,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-12-21 23:16:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 251. [2020-12-21 23:16:13,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-12-21 23:16:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 331 transitions. [2020-12-21 23:16:13,158 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 331 transitions. Word has length 34 [2020-12-21 23:16:13,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:13,158 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 331 transitions. [2020-12-21 23:16:13,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-21 23:16:13,159 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 331 transitions. [2020-12-21 23:16:13,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-21 23:16:13,159 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:13,160 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 23:16:13,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-21 23:16:13,160 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:13,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:13,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1935189253, now seen corresponding path program 1 times [2020-12-21 23:16:13,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:13,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325693246] [2020-12-21 23:16:13,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:13,258 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 23:16:13,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325693246] [2020-12-21 23:16:13,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:13,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-21 23:16:13,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361036227] [2020-12-21 23:16:13,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:16:13,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:13,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:16:13,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:16:13,261 INFO L87 Difference]: Start difference. First operand 251 states and 331 transitions. Second operand 7 states. [2020-12-21 23:16:13,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:13,462 INFO L93 Difference]: Finished difference Result 269 states and 351 transitions. [2020-12-21 23:16:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-21 23:16:13,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-12-21 23:16:13,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:13,464 INFO L225 Difference]: With dead ends: 269 [2020-12-21 23:16:13,464 INFO L226 Difference]: Without dead ends: 250 [2020-12-21 23:16:13,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-21 23:16:13,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-12-21 23:16:13,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-12-21 23:16:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-12-21 23:16:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 329 transitions. [2020-12-21 23:16:13,488 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 329 transitions. Word has length 34 [2020-12-21 23:16:13,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:13,488 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 329 transitions. [2020-12-21 23:16:13,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:16:13,489 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 329 transitions. [2020-12-21 23:16:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-21 23:16:13,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:13,489 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 23:16:13,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-21 23:16:13,490 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:13,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:13,490 INFO L82 PathProgramCache]: Analyzing trace with hash -21362253, now seen corresponding path program 1 times [2020-12-21 23:16:13,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:13,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399599767] [2020-12-21 23:16:13,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:13,558 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 23:16:13,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399599767] [2020-12-21 23:16:13,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:13,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:16:13,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703007880] [2020-12-21 23:16:13,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:16:13,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:13,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:16:13,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:16:13,560 INFO L87 Difference]: Start difference. First operand 250 states and 329 transitions. Second operand 4 states. [2020-12-21 23:16:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:13,697 INFO L93 Difference]: Finished difference Result 278 states and 356 transitions. [2020-12-21 23:16:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:16:13,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-12-21 23:16:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:13,700 INFO L225 Difference]: With dead ends: 278 [2020-12-21 23:16:13,700 INFO L226 Difference]: Without dead ends: 265 [2020-12-21 23:16:13,700 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 23:16:13,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-12-21 23:16:13,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 239. [2020-12-21 23:16:13,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-21 23:16:13,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 314 transitions. [2020-12-21 23:16:13,723 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 314 transitions. Word has length 35 [2020-12-21 23:16:13,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:13,723 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 314 transitions. [2020-12-21 23:16:13,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:16:13,723 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 314 transitions. [2020-12-21 23:16:13,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-21 23:16:13,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:13,724 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 23:16:13,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-21 23:16:13,725 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:13,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:13,725 INFO L82 PathProgramCache]: Analyzing trace with hash 272561262, now seen corresponding path program 1 times [2020-12-21 23:16:13,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:13,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624573982] [2020-12-21 23:16:13,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:13,780 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 23:16:13,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624573982] [2020-12-21 23:16:13,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:13,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-21 23:16:13,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683068639] [2020-12-21 23:16:13,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-21 23:16:13,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:13,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-21 23:16:13,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:16:13,782 INFO L87 Difference]: Start difference. First operand 239 states and 314 transitions. Second operand 5 states. [2020-12-21 23:16:13,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:13,922 INFO L93 Difference]: Finished difference Result 297 states and 372 transitions. [2020-12-21 23:16:13,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-21 23:16:13,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-12-21 23:16:13,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:13,924 INFO L225 Difference]: With dead ends: 297 [2020-12-21 23:16:13,925 INFO L226 Difference]: Without dead ends: 266 [2020-12-21 23:16:13,925 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 23:16:13,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-21 23:16:13,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 239. [2020-12-21 23:16:13,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-21 23:16:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 308 transitions. [2020-12-21 23:16:13,949 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 308 transitions. Word has length 35 [2020-12-21 23:16:13,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:13,949 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 308 transitions. [2020-12-21 23:16:13,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-21 23:16:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 308 transitions. [2020-12-21 23:16:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-21 23:16:13,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:13,950 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 23:16:13,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-21 23:16:13,951 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:13,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:13,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1030061199, now seen corresponding path program 1 times [2020-12-21 23:16:13,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:13,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883654090] [2020-12-21 23:16:13,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:13,980 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 23:16:13,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883654090] [2020-12-21 23:16:13,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:13,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:13,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456778658] [2020-12-21 23:16:13,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:13,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:13,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:13,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:13,982 INFO L87 Difference]: Start difference. First operand 239 states and 308 transitions. Second operand 3 states. [2020-12-21 23:16:14,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:14,010 INFO L93 Difference]: Finished difference Result 257 states and 328 transitions. [2020-12-21 23:16:14,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:14,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-21 23:16:14,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:14,012 INFO L225 Difference]: With dead ends: 257 [2020-12-21 23:16:14,013 INFO L226 Difference]: Without dead ends: 231 [2020-12-21 23:16:14,013 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 23:16:14,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-12-21 23:16:14,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-12-21 23:16:14,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-12-21 23:16:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 297 transitions. [2020-12-21 23:16:14,036 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 297 transitions. Word has length 35 [2020-12-21 23:16:14,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:14,036 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 297 transitions. [2020-12-21 23:16:14,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:14,036 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 297 transitions. [2020-12-21 23:16:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-21 23:16:14,037 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:14,037 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 23:16:14,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-21 23:16:14,038 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:14,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:14,038 INFO L82 PathProgramCache]: Analyzing trace with hash -2102888975, now seen corresponding path program 1 times [2020-12-21 23:16:14,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:14,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869005423] [2020-12-21 23:16:14,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:14,098 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 23:16:14,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869005423] [2020-12-21 23:16:14,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:14,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:16:14,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378808993] [2020-12-21 23:16:14,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:16:14,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:14,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:16:14,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:16:14,100 INFO L87 Difference]: Start difference. First operand 231 states and 297 transitions. Second operand 4 states. [2020-12-21 23:16:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:14,221 INFO L93 Difference]: Finished difference Result 262 states and 327 transitions. [2020-12-21 23:16:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:16:14,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-12-21 23:16:14,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:14,223 INFO L225 Difference]: With dead ends: 262 [2020-12-21 23:16:14,223 INFO L226 Difference]: Without dead ends: 257 [2020-12-21 23:16:14,223 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 23:16:14,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-12-21 23:16:14,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 251. [2020-12-21 23:16:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-12-21 23:16:14,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 317 transitions. [2020-12-21 23:16:14,252 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 317 transitions. Word has length 35 [2020-12-21 23:16:14,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:14,253 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 317 transitions. [2020-12-21 23:16:14,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:16:14,253 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 317 transitions. [2020-12-21 23:16:14,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-21 23:16:14,254 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:14,254 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 23:16:14,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-21 23:16:14,254 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:14,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:14,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1665760845, now seen corresponding path program 1 times [2020-12-21 23:16:14,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:14,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898217624] [2020-12-21 23:16:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:14,303 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 23:16:14,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898217624] [2020-12-21 23:16:14,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:14,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-21 23:16:14,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908172587] [2020-12-21 23:16:14,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:16:14,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:14,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:16:14,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:16:14,305 INFO L87 Difference]: Start difference. First operand 251 states and 317 transitions. Second operand 7 states. [2020-12-21 23:16:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:14,515 INFO L93 Difference]: Finished difference Result 287 states and 353 transitions. [2020-12-21 23:16:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-21 23:16:14,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-12-21 23:16:14,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:14,517 INFO L225 Difference]: With dead ends: 287 [2020-12-21 23:16:14,517 INFO L226 Difference]: Without dead ends: 208 [2020-12-21 23:16:14,518 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 23:16:14,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-12-21 23:16:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 192. [2020-12-21 23:16:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-12-21 23:16:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 230 transitions. [2020-12-21 23:16:14,539 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 230 transitions. Word has length 35 [2020-12-21 23:16:14,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:14,539 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 230 transitions. [2020-12-21 23:16:14,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:16:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 230 transitions. [2020-12-21 23:16:14,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-21 23:16:14,540 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:14,540 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 23:16:14,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-21 23:16:14,541 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:14,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:14,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1804254012, now seen corresponding path program 1 times [2020-12-21 23:16:14,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:14,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967647559] [2020-12-21 23:16:14,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:14,614 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 23:16:14,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967647559] [2020-12-21 23:16:14,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:14,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-21 23:16:14,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133562947] [2020-12-21 23:16:14,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-21 23:16:14,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:14,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-21 23:16:14,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-21 23:16:14,617 INFO L87 Difference]: Start difference. First operand 192 states and 230 transitions. Second operand 6 states. [2020-12-21 23:16:14,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:14,785 INFO L93 Difference]: Finished difference Result 208 states and 246 transitions. [2020-12-21 23:16:14,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-21 23:16:14,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-12-21 23:16:14,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:14,787 INFO L225 Difference]: With dead ends: 208 [2020-12-21 23:16:14,788 INFO L226 Difference]: Without dead ends: 168 [2020-12-21 23:16:14,788 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 23:16:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-12-21 23:16:14,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2020-12-21 23:16:14,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-12-21 23:16:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 197 transitions. [2020-12-21 23:16:14,813 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 197 transitions. Word has length 35 [2020-12-21 23:16:14,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:14,814 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 197 transitions. [2020-12-21 23:16:14,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-21 23:16:14,814 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 197 transitions. [2020-12-21 23:16:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-21 23:16:14,815 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:14,815 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 23:16:14,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-21 23:16:14,815 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:14,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:14,816 INFO L82 PathProgramCache]: Analyzing trace with hash -961302835, now seen corresponding path program 1 times [2020-12-21 23:16:14,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:14,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841240987] [2020-12-21 23:16:14,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:14,864 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 23:16:14,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841240987] [2020-12-21 23:16:14,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:14,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-21 23:16:14,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547795487] [2020-12-21 23:16:14,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:16:14,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:14,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:16:14,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:16:14,866 INFO L87 Difference]: Start difference. First operand 168 states and 197 transitions. Second operand 7 states. [2020-12-21 23:16:15,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:15,054 INFO L93 Difference]: Finished difference Result 224 states and 255 transitions. [2020-12-21 23:16:15,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-21 23:16:15,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-12-21 23:16:15,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:15,056 INFO L225 Difference]: With dead ends: 224 [2020-12-21 23:16:15,056 INFO L226 Difference]: Without dead ends: 195 [2020-12-21 23:16:15,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-12-21 23:16:15,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-12-21 23:16:15,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 167. [2020-12-21 23:16:15,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-12-21 23:16:15,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 195 transitions. [2020-12-21 23:16:15,079 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 195 transitions. Word has length 36 [2020-12-21 23:16:15,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:15,079 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 195 transitions. [2020-12-21 23:16:15,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:16:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 195 transitions. [2020-12-21 23:16:15,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-21 23:16:15,080 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:15,080 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 23:16:15,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-21 23:16:15,080 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_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.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:15,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:15,081 INFO L82 PathProgramCache]: Analyzing trace with hash 724480386, now seen corresponding path program 1 times [2020-12-21 23:16:15,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:15,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829811035] [2020-12-21 23:16:15,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-21 23:16:15,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-21 23:16:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-21 23:16:15,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-21 23:16:15,148 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-21 23:16:15,148 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-21 23:16:15,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-21 23:16:15,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:16:15 BoogieIcfgContainer [2020-12-21 23:16:15,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:16:15,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:16:15,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:16:15,240 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:16:15,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:16:07" (3/4) ... [2020-12-21 23:16:15,243 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-21 23:16:15,377 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c-witness.graphml [2020-12-21 23:16:15,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:16:15,379 INFO L168 Benchmark]: Toolchain (without parser) took 9964.84 ms. Allocated memory was 155.2 MB in the beginning and 237.0 MB in the end (delta: 81.8 MB). Free memory was 129.8 MB in the beginning and 87.9 MB in the end (delta: 41.9 MB). Peak memory consumption was 124.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:16:15,381 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 155.2 MB. Free memory was 127.9 MB in the beginning and 127.8 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:16:15,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.27 ms. Allocated memory is still 155.2 MB. Free memory was 129.7 MB in the beginning and 111.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-12-21 23:16:15,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.86 ms. Allocated memory is still 155.2 MB. Free memory was 111.1 MB in the beginning and 104.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-21 23:16:15,382 INFO L168 Benchmark]: Boogie Preprocessor took 137.48 ms. Allocated memory is still 155.2 MB. Free memory was 104.9 MB in the beginning and 133.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2020-12-21 23:16:15,382 INFO L168 Benchmark]: RCFGBuilder took 1657.54 ms. Allocated memory is still 155.2 MB. Free memory was 133.1 MB in the beginning and 109.2 MB in the end (delta: 23.9 MB). Peak memory consumption was 90.0 MB. Max. memory is 8.0 GB. [2020-12-21 23:16:15,383 INFO L168 Benchmark]: TraceAbstraction took 7295.60 ms. Allocated memory was 155.2 MB in the beginning and 237.0 MB in the end (delta: 81.8 MB). Free memory was 108.6 MB in the beginning and 97.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 92.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:16:15,383 INFO L168 Benchmark]: Witness Printer took 137.74 ms. Allocated memory is still 237.0 MB. Free memory was 97.9 MB in the beginning and 87.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:16:15,385 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 155.2 MB. Free memory was 127.9 MB in the beginning and 127.8 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 587.27 ms. Allocated memory is still 155.2 MB. Free memory was 129.7 MB in the beginning and 111.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 140.86 ms. Allocated memory is still 155.2 MB. Free memory was 111.1 MB in the beginning and 104.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 137.48 ms. Allocated memory is still 155.2 MB. Free memory was 104.9 MB in the beginning and 133.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1657.54 ms. Allocated memory is still 155.2 MB. Free memory was 133.1 MB in the beginning and 109.2 MB in the end (delta: 23.9 MB). Peak memory consumption was 90.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7295.60 ms. Allocated memory was 155.2 MB in the beginning and 237.0 MB in the end (delta: 81.8 MB). Free memory was 108.6 MB in the beginning and 97.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 92.5 MB. Max. memory is 8.0 GB. * Witness Printer took 137.74 ms. Allocated memory is still 237.0 MB. Free memory was 97.9 MB in the beginning and 87.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L236] devExt__Removed = 1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L551] return (returnVal2); VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L248] status = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L290] return (status); VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L429] COND TRUE status != -1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] reach_error() VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 330 locations, 30 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.1s, OverallIterations: 28, TraceHistogramMax: 1, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7955 SDtfs, 5619 SDslu, 10692 SDs, 0 SdLazy, 2215 SolverSat, 315 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=351occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 27 MinimizatonAttempts, 644 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 832 NumberOfCodeBlocks, 832 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 768 ConstructedInterpolants, 0 QuantifiedInterpolants, 70143 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 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...