/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:14:50,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:14:50,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:14:50,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:14:50,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:14:50,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:14:50,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:14:50,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:14:50,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:14:50,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:14:50,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:14:50,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:14:50,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:14:50,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:14:50,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:14:50,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:14:50,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:14:50,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:14:50,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:14:50,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:14:50,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:14:50,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:14:50,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:14:50,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:14:50,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:14:50,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:14:50,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:14:50,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:14:50,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:14:50,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:14:50,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:14:50,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:14:50,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:14:50,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:14:50,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:14:50,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:14:50,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:14:50,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:14:50,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:14:50,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:14:50,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:14:50,165 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:14:50,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:14:50,166 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:14:50,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:14:50,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:14:50,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:14:50,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:14:50,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:14:50,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:14:50,167 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:14:50,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:14:50,168 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:14:50,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:14:50,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:14:50,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:14:50,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:14:50,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:14:50,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:14:50,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:14:50,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:14:50,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:14:50,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:14:50,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:14:50,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:14:50,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:14:50,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:14:50,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:14:50,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:14:50,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:14:50,461 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:14:50,462 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:14:50,462 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-07 11:14:50,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc49c96e/4dc4f9f25f4f4da7a3f6aaea75fd86a8/FLAG703f3b1f8 [2020-07-07 11:14:51,012 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:14:51,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-07 11:14:51,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc49c96e/4dc4f9f25f4f4da7a3f6aaea75fd86a8/FLAG703f3b1f8 [2020-07-07 11:14:51,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc49c96e/4dc4f9f25f4f4da7a3f6aaea75fd86a8 [2020-07-07 11:14:51,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:14:51,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:14:51,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:14:51,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:14:51,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:14:51,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:14:51" (1/1) ... [2020-07-07 11:14:51,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8ed90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51, skipping insertion in model container [2020-07-07 11:14:51,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:14:51" (1/1) ... [2020-07-07 11:14:51,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:14:51,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:14:51,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:14:51,737 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:14:51,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:14:51,938 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:14:51,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51 WrapperNode [2020-07-07 11:14:51,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:14:51,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:14:51,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:14:51,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:14:51,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51" (1/1) ... [2020-07-07 11:14:51,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51" (1/1) ... [2020-07-07 11:14:51,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51" (1/1) ... [2020-07-07 11:14:51,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51" (1/1) ... [2020-07-07 11:14:51,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51" (1/1) ... [2020-07-07 11:14:51,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51" (1/1) ... [2020-07-07 11:14:51,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51" (1/1) ... [2020-07-07 11:14:52,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:14:52,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:14:52,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:14:52,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:14:52,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51" (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 [2020-07-07 11:14:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:14:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:14:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-07 11:14:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-07 11:14:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-07 11:14:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-07 11:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-07 11:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-07 11:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-07 11:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-07 11:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-07 11:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-07-07 11:14:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-07-07 11:14:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-07-07 11:14:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-07-07 11:14:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-07-07 11:14:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-07 11:14:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:14:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-07 11:14:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:14:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-07 11:14:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-07 11:14:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-07 11:14:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-07 11:14:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-07 11:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-07 11:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-07-07 11:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-07-07 11:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-07-07 11:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-07-07 11:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-07-07 11:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-07 11:14:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-07 11:14:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-07 11:14:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-07 11:14:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:14:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-07 11:14:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:14:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:14:52,332 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 11:14:52,412 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-07-07 11:14:52,412 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-07-07 11:14:52,439 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 11:14:52,540 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-07-07 11:14:52,540 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-07-07 11:14:52,542 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 11:14:52,622 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-07 11:14:52,623 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-07 11:14:52,636 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 11:14:52,692 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-07 11:14:52,692 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-07 11:14:52,774 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 11:14:52,789 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-07 11:14:52,789 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-07 11:14:52,810 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 11:14:52,911 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-07 11:14:52,911 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-07 11:14:52,929 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:14:52,929 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 11:14:52,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:14:52 BoogieIcfgContainer [2020-07-07 11:14:52,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:14:52,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:14:52,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:14:52,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:14:52,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:14:51" (1/3) ... [2020-07-07 11:14:52,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6083d9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:14:52, skipping insertion in model container [2020-07-07 11:14:52,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:14:51" (2/3) ... [2020-07-07 11:14:52,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6083d9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:14:52, skipping insertion in model container [2020-07-07 11:14:52,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:14:52" (3/3) ... [2020-07-07 11:14:52,944 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-07-07 11:14:52,955 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:14:52,963 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:14:52,977 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:14:53,002 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:14:53,002 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:14:53,002 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:14:53,003 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:14:53,003 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:14:53,003 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:14:53,003 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:14:53,003 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:14:53,028 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-07-07 11:14:53,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 11:14:53,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:14:53,037 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] [2020-07-07 11:14:53,037 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:14:53,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:14:53,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1129426977, now seen corresponding path program 1 times [2020-07-07 11:14:53,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:14:53,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294970131] [2020-07-07 11:14:53,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:14:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:53,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:14:53,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294970131] [2020-07-07 11:14:53,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:14:53,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:14:53,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698908412] [2020-07-07 11:14:53,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:14:53,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:14:53,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:14:53,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:14:53,479 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 5 states. [2020-07-07 11:14:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:14:54,442 INFO L93 Difference]: Finished difference Result 418 states and 629 transitions. [2020-07-07 11:14:54,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:14:54,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-07-07 11:14:54,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:14:54,460 INFO L225 Difference]: With dead ends: 418 [2020-07-07 11:14:54,460 INFO L226 Difference]: Without dead ends: 259 [2020-07-07 11:14:54,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:14:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-07 11:14:54,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 231. [2020-07-07 11:14:54,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-07-07 11:14:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2020-07-07 11:14:54,544 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2020-07-07 11:14:54,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:14:54,544 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2020-07-07 11:14:54,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:14:54,545 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2020-07-07 11:14:54,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-07 11:14:54,546 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:14:54,546 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] [2020-07-07 11:14:54,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:14:54,547 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:14:54,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:14:54,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1811427322, now seen corresponding path program 1 times [2020-07-07 11:14:54,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:14:54,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348004120] [2020-07-07 11:14:54,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:14:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:14:54,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348004120] [2020-07-07 11:14:54,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:14:54,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:14:54,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498662486] [2020-07-07 11:14:54,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:14:54,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:14:54,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:14:54,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:14:54,845 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand 6 states. [2020-07-07 11:14:56,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:14:56,023 INFO L93 Difference]: Finished difference Result 410 states and 565 transitions. [2020-07-07 11:14:56,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:14:56,024 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-07 11:14:56,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:14:56,033 INFO L225 Difference]: With dead ends: 410 [2020-07-07 11:14:56,033 INFO L226 Difference]: Without dead ends: 349 [2020-07-07 11:14:56,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:14:56,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-07-07 11:14:56,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 304. [2020-07-07 11:14:56,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-07-07 11:14:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 415 transitions. [2020-07-07 11:14:56,111 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 415 transitions. Word has length 28 [2020-07-07 11:14:56,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:14:56,111 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 415 transitions. [2020-07-07 11:14:56,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:14:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 415 transitions. [2020-07-07 11:14:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-07 11:14:56,114 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:14:56,114 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] [2020-07-07 11:14:56,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:14:56,115 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:14:56,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:14:56,116 INFO L82 PathProgramCache]: Analyzing trace with hash 439620198, now seen corresponding path program 1 times [2020-07-07 11:14:56,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:14:56,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079815677] [2020-07-07 11:14:56,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:14:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:14:56,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079815677] [2020-07-07 11:14:56,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:14:56,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:14:56,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037643088] [2020-07-07 11:14:56,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:14:56,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:14:56,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:14:56,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:14:56,335 INFO L87 Difference]: Start difference. First operand 304 states and 415 transitions. Second operand 6 states. [2020-07-07 11:14:57,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:14:57,094 INFO L93 Difference]: Finished difference Result 487 states and 647 transitions. [2020-07-07 11:14:57,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:14:57,094 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-07 11:14:57,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:14:57,098 INFO L225 Difference]: With dead ends: 487 [2020-07-07 11:14:57,098 INFO L226 Difference]: Without dead ends: 368 [2020-07-07 11:14:57,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:14:57,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-07-07 11:14:57,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 344. [2020-07-07 11:14:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-07-07 11:14:57,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 466 transitions. [2020-07-07 11:14:57,154 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 466 transitions. Word has length 28 [2020-07-07 11:14:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:14:57,154 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 466 transitions. [2020-07-07 11:14:57,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:14:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 466 transitions. [2020-07-07 11:14:57,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-07 11:14:57,166 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:14:57,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:14:57,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 11:14:57,168 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:14:57,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:14:57,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1607848921, now seen corresponding path program 1 times [2020-07-07 11:14:57,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:14:57,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645174304] [2020-07-07 11:14:57,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:14:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:14:57,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645174304] [2020-07-07 11:14:57,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:14:57,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:14:57,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029507769] [2020-07-07 11:14:57,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:14:57,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:14:57,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:14:57,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:14:57,381 INFO L87 Difference]: Start difference. First operand 344 states and 466 transitions. Second operand 6 states. [2020-07-07 11:14:58,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:14:58,131 INFO L93 Difference]: Finished difference Result 347 states and 468 transitions. [2020-07-07 11:14:58,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:14:58,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-07 11:14:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:14:58,136 INFO L225 Difference]: With dead ends: 347 [2020-07-07 11:14:58,137 INFO L226 Difference]: Without dead ends: 343 [2020-07-07 11:14:58,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:14:58,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-07-07 11:14:58,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2020-07-07 11:14:58,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-07-07 11:14:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 463 transitions. [2020-07-07 11:14:58,177 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 463 transitions. Word has length 38 [2020-07-07 11:14:58,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:14:58,178 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 463 transitions. [2020-07-07 11:14:58,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:14:58,178 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 463 transitions. [2020-07-07 11:14:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 11:14:58,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:14:58,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:14:58,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 11:14:58,185 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:14:58,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:14:58,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1742109340, now seen corresponding path program 1 times [2020-07-07 11:14:58,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:14:58,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142218960] [2020-07-07 11:14:58,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:14:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:58,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:14:58,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142218960] [2020-07-07 11:14:58,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:14:58,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:14:58,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990833879] [2020-07-07 11:14:58,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 11:14:58,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:14:58,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 11:14:58,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:14:58,399 INFO L87 Difference]: Start difference. First operand 343 states and 463 transitions. Second operand 8 states. [2020-07-07 11:14:59,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:14:59,439 INFO L93 Difference]: Finished difference Result 394 states and 520 transitions. [2020-07-07 11:14:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:14:59,440 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-07-07 11:14:59,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:14:59,442 INFO L225 Difference]: With dead ends: 394 [2020-07-07 11:14:59,443 INFO L226 Difference]: Without dead ends: 325 [2020-07-07 11:14:59,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-07 11:14:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-07-07 11:14:59,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 304. [2020-07-07 11:14:59,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-07-07 11:14:59,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 406 transitions. [2020-07-07 11:14:59,466 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 406 transitions. Word has length 46 [2020-07-07 11:14:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:14:59,466 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 406 transitions. [2020-07-07 11:14:59,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 11:14:59,467 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 406 transitions. [2020-07-07 11:14:59,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-07 11:14:59,468 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:14:59,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:14:59,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 11:14:59,469 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:14:59,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:14:59,469 INFO L82 PathProgramCache]: Analyzing trace with hash 750041855, now seen corresponding path program 1 times [2020-07-07 11:14:59,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:14:59,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118303177] [2020-07-07 11:14:59,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:14:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:14:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:14:59,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118303177] [2020-07-07 11:14:59,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:14:59,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:14:59,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999900490] [2020-07-07 11:14:59,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 11:14:59,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:14:59,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 11:14:59,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:14:59,647 INFO L87 Difference]: Start difference. First operand 304 states and 406 transitions. Second operand 8 states. [2020-07-07 11:15:00,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:00,144 INFO L93 Difference]: Finished difference Result 316 states and 421 transitions. [2020-07-07 11:15:00,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:15:00,145 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-07-07 11:15:00,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:00,149 INFO L225 Difference]: With dead ends: 316 [2020-07-07 11:15:00,150 INFO L226 Difference]: Without dead ends: 300 [2020-07-07 11:15:00,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-07-07 11:15:00,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-07-07 11:15:00,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 270. [2020-07-07 11:15:00,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-07 11:15:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 364 transitions. [2020-07-07 11:15:00,187 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 364 transitions. Word has length 45 [2020-07-07 11:15:00,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:00,187 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 364 transitions. [2020-07-07 11:15:00,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 11:15:00,188 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 364 transitions. [2020-07-07 11:15:00,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 11:15:00,189 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:00,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:00,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 11:15:00,190 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:00,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:00,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1784783245, now seen corresponding path program 1 times [2020-07-07 11:15:00,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:00,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471287960] [2020-07-07 11:15:00,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:00,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471287960] [2020-07-07 11:15:00,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:00,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:15:00,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094040663] [2020-07-07 11:15:00,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 11:15:00,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:00,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 11:15:00,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:15:00,422 INFO L87 Difference]: Start difference. First operand 270 states and 364 transitions. Second operand 8 states. [2020-07-07 11:15:01,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:01,277 INFO L93 Difference]: Finished difference Result 290 states and 385 transitions. [2020-07-07 11:15:01,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:15:01,277 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-07-07 11:15:01,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:01,280 INFO L225 Difference]: With dead ends: 290 [2020-07-07 11:15:01,281 INFO L226 Difference]: Without dead ends: 242 [2020-07-07 11:15:01,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:15:01,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-07-07 11:15:01,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-07-07 11:15:01,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-07-07 11:15:01,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2020-07-07 11:15:01,301 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 46 [2020-07-07 11:15:01,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:01,301 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2020-07-07 11:15:01,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 11:15:01,302 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2020-07-07 11:15:01,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-07 11:15:01,303 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:01,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:01,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 11:15:01,304 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:01,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:01,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1852297644, now seen corresponding path program 1 times [2020-07-07 11:15:01,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:01,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067979323] [2020-07-07 11:15:01,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:01,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:01,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067979323] [2020-07-07 11:15:01,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:01,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:15:01,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750122455] [2020-07-07 11:15:01,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 11:15:01,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:01,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 11:15:01,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:15:01,510 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand 8 states. [2020-07-07 11:15:02,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:02,073 INFO L93 Difference]: Finished difference Result 270 states and 354 transitions. [2020-07-07 11:15:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 11:15:02,073 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-07-07 11:15:02,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:02,075 INFO L225 Difference]: With dead ends: 270 [2020-07-07 11:15:02,076 INFO L226 Difference]: Without dead ends: 240 [2020-07-07 11:15:02,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:15:02,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-07-07 11:15:02,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-07-07 11:15:02,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-07 11:15:02,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2020-07-07 11:15:02,094 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2020-07-07 11:15:02,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:02,095 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2020-07-07 11:15:02,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 11:15:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2020-07-07 11:15:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-07 11:15:02,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:02,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:02,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 11:15:02,097 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:02,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1745163498, now seen corresponding path program 1 times [2020-07-07 11:15:02,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:02,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466177111] [2020-07-07 11:15:02,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:02,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466177111] [2020-07-07 11:15:02,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:02,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 11:15:02,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867580766] [2020-07-07 11:15:02,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:15:02,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:02,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:15:02,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:15:02,324 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand 9 states. [2020-07-07 11:15:03,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:03,559 INFO L93 Difference]: Finished difference Result 313 states and 400 transitions. [2020-07-07 11:15:03,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 11:15:03,560 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-07-07 11:15:03,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:03,562 INFO L225 Difference]: With dead ends: 313 [2020-07-07 11:15:03,563 INFO L226 Difference]: Without dead ends: 307 [2020-07-07 11:15:03,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:15:03,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-07-07 11:15:03,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 274. [2020-07-07 11:15:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-07-07 11:15:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 356 transitions. [2020-07-07 11:15:03,585 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 356 transitions. Word has length 51 [2020-07-07 11:15:03,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:03,585 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 356 transitions. [2020-07-07 11:15:03,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:15:03,585 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 356 transitions. [2020-07-07 11:15:03,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 11:15:03,587 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:03,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:03,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 11:15:03,587 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:03,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:03,588 INFO L82 PathProgramCache]: Analyzing trace with hash -855964733, now seen corresponding path program 1 times [2020-07-07 11:15:03,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:03,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873248929] [2020-07-07 11:15:03,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:03,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873248929] [2020-07-07 11:15:03,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:03,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-07 11:15:03,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590854129] [2020-07-07 11:15:03,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 11:15:03,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:03,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 11:15:03,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:15:03,825 INFO L87 Difference]: Start difference. First operand 274 states and 356 transitions. Second operand 13 states. [2020-07-07 11:15:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:05,794 INFO L93 Difference]: Finished difference Result 325 states and 410 transitions. [2020-07-07 11:15:05,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-07 11:15:05,795 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-07-07 11:15:05,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:05,798 INFO L225 Difference]: With dead ends: 325 [2020-07-07 11:15:05,798 INFO L226 Difference]: Without dead ends: 284 [2020-07-07 11:15:05,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2020-07-07 11:15:05,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-07-07 11:15:05,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 240. [2020-07-07 11:15:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-07 11:15:05,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 315 transitions. [2020-07-07 11:15:05,834 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 315 transitions. Word has length 52 [2020-07-07 11:15:05,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:05,834 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 315 transitions. [2020-07-07 11:15:05,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 11:15:05,835 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 315 transitions. [2020-07-07 11:15:05,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-07 11:15:05,836 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:05,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:05,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 11:15:05,836 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:05,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:05,837 INFO L82 PathProgramCache]: Analyzing trace with hash 240184037, now seen corresponding path program 1 times [2020-07-07 11:15:05,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:05,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57630730] [2020-07-07 11:15:05,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:06,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57630730] [2020-07-07 11:15:06,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:06,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 11:15:06,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349114505] [2020-07-07 11:15:06,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 11:15:06,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:06,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 11:15:06,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-07-07 11:15:06,151 INFO L87 Difference]: Start difference. First operand 240 states and 315 transitions. Second operand 12 states. [2020-07-07 11:15:07,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:07,174 INFO L93 Difference]: Finished difference Result 252 states and 327 transitions. [2020-07-07 11:15:07,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 11:15:07,175 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-07-07 11:15:07,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:07,177 INFO L225 Difference]: With dead ends: 252 [2020-07-07 11:15:07,177 INFO L226 Difference]: Without dead ends: 211 [2020-07-07 11:15:07,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:15:07,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-07-07 11:15:07,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-07-07 11:15:07,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-07 11:15:07,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 276 transitions. [2020-07-07 11:15:07,204 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 276 transitions. Word has length 53 [2020-07-07 11:15:07,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:07,204 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 276 transitions. [2020-07-07 11:15:07,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 11:15:07,205 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 276 transitions. [2020-07-07 11:15:07,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-07 11:15:07,206 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:07,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:07,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 11:15:07,206 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:07,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:07,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1569125, now seen corresponding path program 1 times [2020-07-07 11:15:07,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:07,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862442964] [2020-07-07 11:15:07,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:07,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:07,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862442964] [2020-07-07 11:15:07,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:07,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 11:15:07,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581843395] [2020-07-07 11:15:07,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 11:15:07,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:07,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 11:15:07,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:15:07,494 INFO L87 Difference]: Start difference. First operand 211 states and 276 transitions. Second operand 14 states. [2020-07-07 11:15:08,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:08,567 INFO L93 Difference]: Finished difference Result 227 states and 292 transitions. [2020-07-07 11:15:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 11:15:08,567 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-07-07 11:15:08,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:08,569 INFO L225 Difference]: With dead ends: 227 [2020-07-07 11:15:08,569 INFO L226 Difference]: Without dead ends: 206 [2020-07-07 11:15:08,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:15:08,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-07 11:15:08,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-07-07 11:15:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-07 11:15:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-07-07 11:15:08,592 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 54 [2020-07-07 11:15:08,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:08,593 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-07-07 11:15:08,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 11:15:08,593 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-07-07 11:15:08,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-07 11:15:08,594 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:08,595 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:08,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 11:15:08,595 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:08,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:08,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1204113239, now seen corresponding path program 1 times [2020-07-07 11:15:08,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:08,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288128566] [2020-07-07 11:15:08,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:08,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288128566] [2020-07-07 11:15:08,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:08,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 11:15:08,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144802730] [2020-07-07 11:15:08,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:15:08,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:08,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:15:08,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:15:08,825 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 11 states. [2020-07-07 11:15:09,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:09,613 INFO L93 Difference]: Finished difference Result 296 states and 379 transitions. [2020-07-07 11:15:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 11:15:09,615 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-07-07 11:15:09,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:09,616 INFO L225 Difference]: With dead ends: 296 [2020-07-07 11:15:09,616 INFO L226 Difference]: Without dead ends: 224 [2020-07-07 11:15:09,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:15:09,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-07 11:15:09,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2020-07-07 11:15:09,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-07 11:15:09,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 278 transitions. [2020-07-07 11:15:09,636 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 278 transitions. Word has length 57 [2020-07-07 11:15:09,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:09,636 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 278 transitions. [2020-07-07 11:15:09,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:15:09,637 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 278 transitions. [2020-07-07 11:15:09,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-07 11:15:09,638 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:09,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:09,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 11:15:09,638 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:09,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:09,639 INFO L82 PathProgramCache]: Analyzing trace with hash -527681510, now seen corresponding path program 1 times [2020-07-07 11:15:09,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:09,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132894083] [2020-07-07 11:15:09,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:09,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132894083] [2020-07-07 11:15:09,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:09,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 11:15:09,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910414929] [2020-07-07 11:15:09,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:15:09,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:09,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:15:09,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:15:09,849 INFO L87 Difference]: Start difference. First operand 214 states and 278 transitions. Second operand 11 states. [2020-07-07 11:15:10,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:10,670 INFO L93 Difference]: Finished difference Result 232 states and 299 transitions. [2020-07-07 11:15:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 11:15:10,670 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-07-07 11:15:10,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:10,672 INFO L225 Difference]: With dead ends: 232 [2020-07-07 11:15:10,672 INFO L226 Difference]: Without dead ends: 225 [2020-07-07 11:15:10,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2020-07-07 11:15:10,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-07-07 11:15:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 215. [2020-07-07 11:15:10,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-07-07 11:15:10,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 279 transitions. [2020-07-07 11:15:10,695 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 279 transitions. Word has length 57 [2020-07-07 11:15:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:10,695 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 279 transitions. [2020-07-07 11:15:10,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:15:10,695 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 279 transitions. [2020-07-07 11:15:10,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-07 11:15:10,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:10,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:10,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-07 11:15:10,702 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:10,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:10,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1045578754, now seen corresponding path program 1 times [2020-07-07 11:15:10,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:10,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882705303] [2020-07-07 11:15:10,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:10,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882705303] [2020-07-07 11:15:10,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:10,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:15:10,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650691629] [2020-07-07 11:15:10,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 11:15:10,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:10,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 11:15:10,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:15:10,890 INFO L87 Difference]: Start difference. First operand 215 states and 279 transitions. Second operand 8 states. [2020-07-07 11:15:11,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:11,492 INFO L93 Difference]: Finished difference Result 258 states and 327 transitions. [2020-07-07 11:15:11,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:15:11,492 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2020-07-07 11:15:11,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:11,494 INFO L225 Difference]: With dead ends: 258 [2020-07-07 11:15:11,494 INFO L226 Difference]: Without dead ends: 214 [2020-07-07 11:15:11,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:15:11,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-07-07 11:15:11,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-07-07 11:15:11,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-07 11:15:11,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 274 transitions. [2020-07-07 11:15:11,511 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 274 transitions. Word has length 60 [2020-07-07 11:15:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:11,512 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 274 transitions. [2020-07-07 11:15:11,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 11:15:11,512 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 274 transitions. [2020-07-07 11:15:11,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-07 11:15:11,513 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:11,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:11,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-07 11:15:11,514 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:11,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:11,514 INFO L82 PathProgramCache]: Analyzing trace with hash -930292561, now seen corresponding path program 1 times [2020-07-07 11:15:11,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:11,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42352035] [2020-07-07 11:15:11,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:11,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42352035] [2020-07-07 11:15:11,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:11,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-07 11:15:11,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760768090] [2020-07-07 11:15:11,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-07 11:15:11,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:11,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-07 11:15:11,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:15:11,813 INFO L87 Difference]: Start difference. First operand 214 states and 274 transitions. Second operand 15 states. [2020-07-07 11:15:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:13,111 INFO L93 Difference]: Finished difference Result 226 states and 286 transitions. [2020-07-07 11:15:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 11:15:13,111 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2020-07-07 11:15:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:13,113 INFO L225 Difference]: With dead ends: 226 [2020-07-07 11:15:13,113 INFO L226 Difference]: Without dead ends: 188 [2020-07-07 11:15:13,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:15:13,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-07-07 11:15:13,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-07-07 11:15:13,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-07 11:15:13,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 236 transitions. [2020-07-07 11:15:13,129 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 236 transitions. Word has length 61 [2020-07-07 11:15:13,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:13,130 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 236 transitions. [2020-07-07 11:15:13,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-07 11:15:13,130 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 236 transitions. [2020-07-07 11:15:13,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-07 11:15:13,132 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:13,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:13,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-07 11:15:13,132 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:13,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:13,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1127735086, now seen corresponding path program 1 times [2020-07-07 11:15:13,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:13,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657938884] [2020-07-07 11:15:13,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:13,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657938884] [2020-07-07 11:15:13,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:13,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-07 11:15:13,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113069] [2020-07-07 11:15:13,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-07 11:15:13,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:13,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-07 11:15:13,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:15:13,466 INFO L87 Difference]: Start difference. First operand 188 states and 236 transitions. Second operand 15 states. [2020-07-07 11:15:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:14,225 INFO L93 Difference]: Finished difference Result 200 states and 248 transitions. [2020-07-07 11:15:14,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 11:15:14,225 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-07-07 11:15:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:14,227 INFO L225 Difference]: With dead ends: 200 [2020-07-07 11:15:14,227 INFO L226 Difference]: Without dead ends: 186 [2020-07-07 11:15:14,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:15:14,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-07-07 11:15:14,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-07-07 11:15:14,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-07-07 11:15:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 232 transitions. [2020-07-07 11:15:14,250 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 232 transitions. Word has length 56 [2020-07-07 11:15:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:14,250 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 232 transitions. [2020-07-07 11:15:14,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-07 11:15:14,250 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 232 transitions. [2020-07-07 11:15:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-07 11:15:14,252 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:14,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:14,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-07 11:15:14,253 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:14,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:14,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1554463583, now seen corresponding path program 1 times [2020-07-07 11:15:14,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:14,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617415426] [2020-07-07 11:15:14,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:14,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617415426] [2020-07-07 11:15:14,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:14,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-07 11:15:14,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971457865] [2020-07-07 11:15:14,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 11:15:14,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:14,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 11:15:14,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:15:14,556 INFO L87 Difference]: Start difference. First operand 186 states and 232 transitions. Second operand 13 states. [2020-07-07 11:15:15,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:15,852 INFO L93 Difference]: Finished difference Result 237 states and 286 transitions. [2020-07-07 11:15:15,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 11:15:15,853 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-07-07 11:15:15,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:15,855 INFO L225 Difference]: With dead ends: 237 [2020-07-07 11:15:15,855 INFO L226 Difference]: Without dead ends: 220 [2020-07-07 11:15:15,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2020-07-07 11:15:15,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-07-07 11:15:15,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 190. [2020-07-07 11:15:15,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-07 11:15:15,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 237 transitions. [2020-07-07 11:15:15,872 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 237 transitions. Word has length 55 [2020-07-07 11:15:15,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:15,873 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 237 transitions. [2020-07-07 11:15:15,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 11:15:15,873 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 237 transitions. [2020-07-07 11:15:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-07 11:15:15,874 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:15,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:15,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-07 11:15:15,875 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:15,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:15,875 INFO L82 PathProgramCache]: Analyzing trace with hash -725184292, now seen corresponding path program 1 times [2020-07-07 11:15:15,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:15,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758427330] [2020-07-07 11:15:15,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:16,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:16,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758427330] [2020-07-07 11:15:16,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:16,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 11:15:16,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165136097] [2020-07-07 11:15:16,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 11:15:16,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:16,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 11:15:16,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:15:16,147 INFO L87 Difference]: Start difference. First operand 190 states and 237 transitions. Second operand 14 states. [2020-07-07 11:15:16,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:16,945 INFO L93 Difference]: Finished difference Result 206 states and 253 transitions. [2020-07-07 11:15:16,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 11:15:16,946 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-07-07 11:15:16,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:16,947 INFO L225 Difference]: With dead ends: 206 [2020-07-07 11:15:16,948 INFO L226 Difference]: Without dead ends: 168 [2020-07-07 11:15:16,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:15:16,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-07 11:15:16,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2020-07-07 11:15:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-07-07 11:15:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 194 transitions. [2020-07-07 11:15:16,967 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 194 transitions. Word has length 55 [2020-07-07 11:15:16,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:16,968 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 194 transitions. [2020-07-07 11:15:16,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 11:15:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 194 transitions. [2020-07-07 11:15:16,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-07 11:15:16,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:16,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:16,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-07 11:15:16,969 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:16,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:16,970 INFO L82 PathProgramCache]: Analyzing trace with hash -639520605, now seen corresponding path program 1 times [2020-07-07 11:15:16,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:16,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779940856] [2020-07-07 11:15:16,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:15:17,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779940856] [2020-07-07 11:15:17,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:15:17,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 11:15:17,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519079147] [2020-07-07 11:15:17,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 11:15:17,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:15:17,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 11:15:17,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:15:17,223 INFO L87 Difference]: Start difference. First operand 168 states and 194 transitions. Second operand 10 states. [2020-07-07 11:15:17,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:15:17,552 INFO L93 Difference]: Finished difference Result 204 states and 235 transitions. [2020-07-07 11:15:17,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:15:17,553 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-07-07 11:15:17,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:15:17,554 INFO L225 Difference]: With dead ends: 204 [2020-07-07 11:15:17,554 INFO L226 Difference]: Without dead ends: 162 [2020-07-07 11:15:17,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:15:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-07-07 11:15:17,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-07-07 11:15:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-07-07 11:15:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 185 transitions. [2020-07-07 11:15:17,573 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 185 transitions. Word has length 58 [2020-07-07 11:15:17,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:15:17,574 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 185 transitions. [2020-07-07 11:15:17,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 11:15:17,574 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 185 transitions. [2020-07-07 11:15:17,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-07 11:15:17,576 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:17,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:17,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-07 11:15:17,576 INFO L427 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:17,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:17,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1656625880, now seen corresponding path program 1 times [2020-07-07 11:15:17,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:17,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434056615] [2020-07-07 11:15:17,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:15:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:15:17,707 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 11:15:17,707 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 11:15:17,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-07 11:15:17,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:15:17 BoogieIcfgContainer [2020-07-07 11:15:17,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:15:17,892 INFO L168 Benchmark]: Toolchain (without parser) took 26530.55 ms. Allocated memory was 144.7 MB in the beginning and 546.3 MB in the end (delta: 401.6 MB). Free memory was 102.0 MB in the beginning and 506.0 MB in the end (delta: -404.0 MB). Peak memory consumption was 392.2 MB. Max. memory is 7.1 GB. [2020-07-07 11:15:17,893 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 11:15:17,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.90 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 101.8 MB in the beginning and 176.2 MB in the end (delta: -74.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:15:17,898 INFO L168 Benchmark]: Boogie Preprocessor took 65.85 ms. Allocated memory is still 203.4 MB. Free memory was 176.2 MB in the beginning and 172.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:15:17,899 INFO L168 Benchmark]: RCFGBuilder took 930.31 ms. Allocated memory is still 203.4 MB. Free memory was 172.7 MB in the beginning and 101.8 MB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:15:17,900 INFO L168 Benchmark]: TraceAbstraction took 24947.46 ms. Allocated memory was 203.4 MB in the beginning and 546.3 MB in the end (delta: 342.9 MB). Free memory was 101.1 MB in the beginning and 506.0 MB in the end (delta: -405.0 MB). Peak memory consumption was 332.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:15:17,905 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 581.90 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 101.8 MB in the beginning and 176.2 MB in the end (delta: -74.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.85 ms. Allocated memory is still 203.4 MB. Free memory was 176.2 MB in the beginning and 172.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 930.31 ms. Allocated memory is still 203.4 MB. Free memory was 172.7 MB in the beginning and 101.8 MB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24947.46 ms. Allocated memory was 203.4 MB in the beginning and 546.3 MB in the end (delta: 342.9 MB). Free memory was 101.1 MB in the beginning and 506.0 MB in the end (delta: -405.0 MB). Peak memory consumption was 332.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1011]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] int KernelMode ; [L22] int Executive ; [L23] int DevicePowerState ; [L24] int s ; [L25] int UNLOADED ; [L26] int NP ; [L27] int DC ; [L28] int SKIP1 ; [L29] int SKIP2 ; [L30] int MPR1 ; [L31] int MPR3 ; [L32] int IPC ; [L33] int pended ; [L34] int compFptr ; [L35] int compRegistered ; [L36] int lowerDriverReturn ; [L37] int setEventCalled ; [L38] int customIrp ; [L39] int myStatus ; VAL [\old(compFptr)=21, \old(compRegistered)=13, \old(customIrp)=16, \old(DC)=9, \old(DevicePowerState)=22, \old(Executive)=14, \old(IPC)=10, \old(KernelMode)=26, \old(lowerDriverReturn)=24, \old(MPR1)=20, \old(MPR3)=18, \old(myStatus)=23, \old(NP)=15, \old(pended)=25, \old(s)=11, \old(setEventCalled)=19, \old(SKIP1)=17, \old(SKIP2)=12, \old(UNLOADED)=8, 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] [L292] int status ; [L293] int irp = __VERIFIER_nondet_int() ; [L294] int pirp ; [L295] int pirp__IoStatus__Status ; [L296] int irp_choice = __VERIFIER_nondet_int() ; [L297] int devobj = __VERIFIER_nondet_int() ; [L298] int __cil_tmp8 ; [L300] KernelMode = 0 [L301] Executive = 0 [L302] DevicePowerState = 1 [L303] s = 0 [L304] UNLOADED = 0 [L305] NP = 0 [L306] DC = 0 [L307] SKIP1 = 0 [L308] SKIP2 = 0 [L309] MPR1 = 0 [L310] MPR3 = 0 [L311] IPC = 0 [L312] pended = 0 [L313] compFptr = 0 [L314] compRegistered = 0 [L315] lowerDriverReturn = 0 [L316] setEventCalled = 0 [L317] customIrp = 0 [L318] myStatus = 0 [L322] status = 0 [L323] pirp = irp VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, devobj=2, Executive=0, IPC=0, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L324] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, 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] [L59] UNLOADED = 0 [L60] NP = 1 [L61] DC = 2 [L62] SKIP1 = 3 [L63] SKIP2 = 4 [L64] MPR1 = 5 [L65] MPR3 = 6 [L66] IPC = 7 [L67] s = UNLOADED [L68] pended = 0 [L69] compFptr = 0 [L70] compRegistered = 0 [L71] lowerDriverReturn = 0 [L72] setEventCalled = 0 [L73] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, 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] [L324] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L326] COND TRUE status >= 0 [L327] s = NP [L328] customIrp = 0 [L329] setEventCalled = customIrp [L330] lowerDriverReturn = setEventCalled [L331] compRegistered = lowerDriverReturn [L332] pended = compRegistered [L333] pirp__IoStatus__Status = 0 [L334] myStatus = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L335] COND FALSE !(irp_choice == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L340] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, 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] [L45] s = NP [L46] pended = 0 [L47] compFptr = 0 [L48] compRegistered = 0 [L49] lowerDriverReturn = 0 [L50] setEventCalled = 0 [L51] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, 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] [L340] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L343] COND FALSE !(status < 0) [L347] int tmp_ndt_1; [L348] tmp_ndt_1 = __VERIFIER_nondet_int() [L349] COND FALSE !(tmp_ndt_1 == 0) [L352] int tmp_ndt_2; [L353] tmp_ndt_2 = __VERIFIER_nondet_int() [L354] COND FALSE !(tmp_ndt_2 == 1) [L357] int tmp_ndt_3; [L358] tmp_ndt_3 = __VERIFIER_nondet_int() [L359] COND TRUE tmp_ndt_3 == 3 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L386] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, 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] [L78] int devExt ; [L79] int irpStack ; [L80] int status ; [L81] int event = __VERIFIER_nondet_int() ; [L82] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L83] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L84] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L85] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L86] int devExt__Started ; [L87] int devExt__Removed ; [L88] int devExt__SurpriseRemoved ; [L89] int Irp__IoStatus__Status ; [L90] int Irp__IoStatus__Information ; [L91] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L92] int irpSp ; [L93] int nextIrpSp ; [L94] int nextIrpSp__Control ; [L95] int irpSp___0 ; [L96] int irpSp__Context ; [L97] int irpSp__Control ; [L98] long __cil_tmp23 ; [L101] status = 0 [L102] devExt = DeviceObject__DeviceExtension [L103] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L104] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L107] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L110] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L234] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L235] COND TRUE s == NP [L236] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L243] Irp__CurrentLocation ++ [L244] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] CALL IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, 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=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L481] int returnVal2 ; [L482] int compRetStatus ; [L483] int lcontext = __VERIFIER_nondet_int() ; [L484] long long __cil_tmp7 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L487] COND FALSE !(\read(compRegistered)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L500] int tmp_ndt_6; [L501] tmp_ndt_6 = __VERIFIER_nondet_int() [L502] COND FALSE !(tmp_ndt_6 == 0) [L505] int tmp_ndt_7; [L506] tmp_ndt_7 = __VERIFIER_nondet_int() [L507] COND TRUE tmp_ndt_7 == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L516] returnVal2 = -1073741823 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L526] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L530] COND FALSE !(s == MPR1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L539] COND TRUE s == SKIP1 [L540] s = SKIP2 [L541] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L549] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L245] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L246] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L288] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L386] RET, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L386] status = KbFilter_PnP(devobj, pirp) [L410] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L418] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L426] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L427] COND TRUE status != -1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L428] COND FALSE !(s != SKIP2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L438] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L445] COND FALSE !(s == DC) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L450] COND TRUE status != lowerDriverReturn VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L451] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1011] __VERIFIER_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.7s, OverallIterations: 21, TraceHistogramMax: 1, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4633 SDtfs, 6121 SDslu, 7830 SDs, 0 SdLazy, 16037 SolverSat, 1268 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 407 GetRequests, 175 SyntacticMatches, 5 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 275 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 1029 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 953 ConstructedInterpolants, 0 QuantifiedInterpolants, 212574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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...