./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ntdrivers-simplified/kbfiltr_simpl2_false-unreach-call_true-valid-memsafety_true-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ntdrivers-simplified/kbfiltr_simpl2_false-unreach-call_true-valid-memsafety_true-termination.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e107441daffe219fcef86523aff14082b11c5fb6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 16:08:50,036 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 16:08:50,038 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 16:08:50,051 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 16:08:50,051 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 16:08:50,052 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 16:08:50,054 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 16:08:50,056 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 16:08:50,057 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 16:08:50,058 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 16:08:50,059 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 16:08:50,059 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 16:08:50,060 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 16:08:50,063 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 16:08:50,064 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 16:08:50,068 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 16:08:50,069 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 16:08:50,074 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 16:08:50,078 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 16:08:50,080 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 16:08:50,085 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 16:08:50,087 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 16:08:50,093 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 16:08:50,093 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 16:08:50,093 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 16:08:50,094 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 16:08:50,095 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 16:08:50,096 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 16:08:50,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 16:08:50,097 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 16:08:50,098 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 16:08:50,098 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 16:08:50,098 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 16:08:50,099 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 16:08:50,099 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 16:08:50,100 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 16:08:50,100 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 16:08:50,114 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 16:08:50,115 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 16:08:50,115 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 16:08:50,116 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 16:08:50,116 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 16:08:50,116 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 16:08:50,117 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 16:08:50,117 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 16:08:50,117 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 16:08:50,117 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 16:08:50,117 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 16:08:50,118 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 16:08:50,118 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 16:08:50,118 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 16:08:50,118 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 16:08:50,118 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 16:08:50,118 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 16:08:50,119 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 16:08:50,119 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 16:08:50,119 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 16:08:50,119 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 16:08:50,119 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 16:08:50,119 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 16:08:50,120 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 16:08:50,120 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 16:08:50,120 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 16:08:50,120 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 16:08:50,120 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 16:08:50,121 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 16:08:50,121 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 16:08:50,121 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e107441daffe219fcef86523aff14082b11c5fb6 [2018-11-28 16:08:50,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 16:08:50,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 16:08:50,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 16:08:50,179 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 16:08:50,179 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 16:08:50,180 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ntdrivers-simplified/kbfiltr_simpl2_false-unreach-call_true-valid-memsafety_true-termination.cil.c [2018-11-28 16:08:50,241 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95644895a/9bcbb2f7f03c40a6adb3f32ca55af0dd/FLAGb9e86c6cc [2018-11-28 16:08:50,752 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 16:08:50,753 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ntdrivers-simplified/kbfiltr_simpl2_false-unreach-call_true-valid-memsafety_true-termination.cil.c [2018-11-28 16:08:50,771 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95644895a/9bcbb2f7f03c40a6adb3f32ca55af0dd/FLAGb9e86c6cc [2018-11-28 16:08:51,053 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95644895a/9bcbb2f7f03c40a6adb3f32ca55af0dd [2018-11-28 16:08:51,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 16:08:51,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 16:08:51,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 16:08:51,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 16:08:51,062 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 16:08:51,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f0bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51, skipping insertion in model container [2018-11-28 16:08:51,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 16:08:51,146 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 16:08:51,470 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 16:08:51,476 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 16:08:51,563 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 16:08:51,592 INFO L195 MainTranslator]: Completed translation [2018-11-28 16:08:51,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51 WrapperNode [2018-11-28 16:08:51,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 16:08:51,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 16:08:51,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 16:08:51,594 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 16:08:51,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 16:08:51,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 16:08:51,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 16:08:51,699 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 16:08:51,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (1/1) ... [2018-11-28 16:08:51,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 16:08:51,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 16:08:51,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 16:08:51,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 16:08:51,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (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 [2018-11-28 16:08:51,892 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2018-11-28 16:08:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2018-11-28 16:08:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2018-11-28 16:08:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2018-11-28 16:08:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2018-11-28 16:08:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2018-11-28 16:08:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2018-11-28 16:08:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2018-11-28 16:08:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2018-11-28 16:08:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2018-11-28 16:08:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2018-11-28 16:08:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2018-11-28 16:08:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 16:08:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 16:08:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2018-11-28 16:08:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2018-11-28 16:08:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2018-11-28 16:08:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2018-11-28 16:08:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2018-11-28 16:08:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2018-11-28 16:08:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2018-11-28 16:08:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2018-11-28 16:08:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 16:08:51,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 16:08:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2018-11-28 16:08:51,899 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2018-11-28 16:08:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2018-11-28 16:08:51,900 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2018-11-28 16:08:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2018-11-28 16:08:51,901 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2018-11-28 16:08:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 16:08:51,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 16:08:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2018-11-28 16:08:51,902 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2018-11-28 16:08:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2018-11-28 16:08:51,902 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2018-11-28 16:08:52,255 WARN L650 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-28 16:08:52,255 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 16:08:52,461 WARN L650 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-28 16:08:52,461 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 16:08:52,769 WARN L650 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-28 16:08:52,770 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 16:08:52,851 WARN L650 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-28 16:08:52,852 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 16:08:53,120 WARN L650 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-28 16:08:53,120 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 16:08:53,245 WARN L650 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-28 16:08:53,245 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 16:08:53,452 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 16:08:53,453 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 16:08:53,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:08:53 BoogieIcfgContainer [2018-11-28 16:08:53,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 16:08:53,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 16:08:53,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 16:08:53,458 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 16:08:53,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:08:51" (1/3) ... [2018-11-28 16:08:53,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f69de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:08:53, skipping insertion in model container [2018-11-28 16:08:53,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:51" (2/3) ... [2018-11-28 16:08:53,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f69de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:08:53, skipping insertion in model container [2018-11-28 16:08:53,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:08:53" (3/3) ... [2018-11-28 16:08:53,462 INFO L112 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2_false-unreach-call_true-valid-memsafety_true-termination.cil.c [2018-11-28 16:08:53,475 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 16:08:53,485 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 16:08:53,508 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 16:08:53,559 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 16:08:53,560 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 16:08:53,560 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 16:08:53,560 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 16:08:53,561 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 16:08:53,561 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 16:08:53,562 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 16:08:53,562 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 16:08:53,562 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 16:08:53,601 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2018-11-28 16:08:53,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 16:08:53,611 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:53,614 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 16:08:53,616 INFO L423 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:53,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:53,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1129426977, now seen corresponding path program 1 times [2018-11-28 16:08:53,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:53,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:53,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:53,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:53,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:53,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:53,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 16:08:54,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 16:08:54,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 16:08:54,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:54,026 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 3 states. [2018-11-28 16:08:54,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:08:54,293 INFO L93 Difference]: Finished difference Result 390 states and 586 transitions. [2018-11-28 16:08:54,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 16:08:54,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-28 16:08:54,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:08:54,317 INFO L225 Difference]: With dead ends: 390 [2018-11-28 16:08:54,319 INFO L226 Difference]: Without dead ends: 231 [2018-11-28 16:08:54,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:54,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2018-11-28 16:08:54,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2018-11-28 16:08:54,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2018-11-28 16:08:54,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2018-11-28 16:08:54,458 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2018-11-28 16:08:54,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:08:54,459 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2018-11-28 16:08:54,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 16:08:54,459 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2018-11-28 16:08:54,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 16:08:54,463 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:54,463 INFO L402 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] [2018-11-28 16:08:54,463 INFO L423 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:54,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:54,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1811427322, now seen corresponding path program 1 times [2018-11-28 16:08:54,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:54,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:54,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:54,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:54,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:54,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:54,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 16:08:54,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 16:08:54,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 16:08:54,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:54,772 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand 3 states. [2018-11-28 16:08:55,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:08:55,227 INFO L93 Difference]: Finished difference Result 375 states and 514 transitions. [2018-11-28 16:08:55,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 16:08:55,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-11-28 16:08:55,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:08:55,234 INFO L225 Difference]: With dead ends: 375 [2018-11-28 16:08:55,234 INFO L226 Difference]: Without dead ends: 314 [2018-11-28 16:08:55,236 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2018-11-28 16:08:55,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 298. [2018-11-28 16:08:55,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-11-28 16:08:55,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 408 transitions. [2018-11-28 16:08:55,272 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 408 transitions. Word has length 28 [2018-11-28 16:08:55,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:08:55,272 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 408 transitions. [2018-11-28 16:08:55,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 16:08:55,273 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 408 transitions. [2018-11-28 16:08:55,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 16:08:55,274 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:55,274 INFO L402 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] [2018-11-28 16:08:55,275 INFO L423 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:55,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:55,275 INFO L82 PathProgramCache]: Analyzing trace with hash 439620198, now seen corresponding path program 1 times [2018-11-28 16:08:55,275 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:55,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:55,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:55,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:55,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:55,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:55,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 16:08:55,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 16:08:55,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 16:08:55,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:55,346 INFO L87 Difference]: Start difference. First operand 298 states and 408 transitions. Second operand 3 states. [2018-11-28 16:08:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:08:55,493 INFO L93 Difference]: Finished difference Result 481 states and 640 transitions. [2018-11-28 16:08:55,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 16:08:55,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-11-28 16:08:55,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:08:55,497 INFO L225 Difference]: With dead ends: 481 [2018-11-28 16:08:55,498 INFO L226 Difference]: Without dead ends: 362 [2018-11-28 16:08:55,499 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2018-11-28 16:08:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 338. [2018-11-28 16:08:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-11-28 16:08:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 459 transitions. [2018-11-28 16:08:55,546 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 459 transitions. Word has length 28 [2018-11-28 16:08:55,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:08:55,547 INFO L480 AbstractCegarLoop]: Abstraction has 338 states and 459 transitions. [2018-11-28 16:08:55,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 16:08:55,547 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 459 transitions. [2018-11-28 16:08:55,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-28 16:08:55,550 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:55,550 INFO L402 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] [2018-11-28 16:08:55,551 INFO L423 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:55,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:55,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1607848921, now seen corresponding path program 1 times [2018-11-28 16:08:55,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:55,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:55,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:55,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:55,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:55,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:55,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:55,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 16:08:55,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 16:08:55,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 16:08:55,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:55,688 INFO L87 Difference]: Start difference. First operand 338 states and 459 transitions. Second operand 3 states. [2018-11-28 16:08:56,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:08:56,033 INFO L93 Difference]: Finished difference Result 341 states and 461 transitions. [2018-11-28 16:08:56,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 16:08:56,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-28 16:08:56,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:08:56,038 INFO L225 Difference]: With dead ends: 341 [2018-11-28 16:08:56,038 INFO L226 Difference]: Without dead ends: 337 [2018-11-28 16:08:56,039 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:56,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-11-28 16:08:56,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2018-11-28 16:08:56,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-11-28 16:08:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 456 transitions. [2018-11-28 16:08:56,078 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 456 transitions. Word has length 38 [2018-11-28 16:08:56,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:08:56,079 INFO L480 AbstractCegarLoop]: Abstraction has 337 states and 456 transitions. [2018-11-28 16:08:56,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 16:08:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 456 transitions. [2018-11-28 16:08:56,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 16:08:56,084 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:56,085 INFO L402 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] [2018-11-28 16:08:56,085 INFO L423 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:56,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:56,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1742109340, now seen corresponding path program 1 times [2018-11-28 16:08:56,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:56,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:56,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:56,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:56,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:56,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:56,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 16:08:56,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 16:08:56,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 16:08:56,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 16:08:56,245 INFO L87 Difference]: Start difference. First operand 337 states and 456 transitions. Second operand 4 states. [2018-11-28 16:08:56,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:08:56,688 INFO L93 Difference]: Finished difference Result 388 states and 513 transitions. [2018-11-28 16:08:56,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 16:08:56,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-11-28 16:08:56,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:08:56,693 INFO L225 Difference]: With dead ends: 388 [2018-11-28 16:08:56,693 INFO L226 Difference]: Without dead ends: 319 [2018-11-28 16:08:56,694 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 16:08:56,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2018-11-28 16:08:56,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 298. [2018-11-28 16:08:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-11-28 16:08:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 399 transitions. [2018-11-28 16:08:56,717 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 399 transitions. Word has length 46 [2018-11-28 16:08:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:08:56,718 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 399 transitions. [2018-11-28 16:08:56,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 16:08:56,718 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 399 transitions. [2018-11-28 16:08:56,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-28 16:08:56,722 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:56,723 INFO L402 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] [2018-11-28 16:08:56,723 INFO L423 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:56,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:56,723 INFO L82 PathProgramCache]: Analyzing trace with hash 750041855, now seen corresponding path program 1 times [2018-11-28 16:08:56,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:56,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:56,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:56,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:56,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:56,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:56,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 16:08:56,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 16:08:56,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 16:08:56,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:56,862 INFO L87 Difference]: Start difference. First operand 298 states and 399 transitions. Second operand 3 states. [2018-11-28 16:08:56,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:08:56,973 INFO L93 Difference]: Finished difference Result 310 states and 414 transitions. [2018-11-28 16:08:56,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 16:08:56,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-11-28 16:08:56,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:08:56,978 INFO L225 Difference]: With dead ends: 310 [2018-11-28 16:08:56,978 INFO L226 Difference]: Without dead ends: 294 [2018-11-28 16:08:56,979 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:56,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-11-28 16:08:57,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 264. [2018-11-28 16:08:57,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-11-28 16:08:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 357 transitions. [2018-11-28 16:08:57,006 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 357 transitions. Word has length 45 [2018-11-28 16:08:57,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:08:57,007 INFO L480 AbstractCegarLoop]: Abstraction has 264 states and 357 transitions. [2018-11-28 16:08:57,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 16:08:57,007 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 357 transitions. [2018-11-28 16:08:57,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 16:08:57,009 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:57,009 INFO L402 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] [2018-11-28 16:08:57,009 INFO L423 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:57,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:57,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1784783245, now seen corresponding path program 1 times [2018-11-28 16:08:57,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:57,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:57,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:57,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:57,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:57,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:57,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 16:08:57,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 16:08:57,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 16:08:57,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:57,136 INFO L87 Difference]: Start difference. First operand 264 states and 357 transitions. Second operand 3 states. [2018-11-28 16:08:57,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:08:57,597 INFO L93 Difference]: Finished difference Result 284 states and 378 transitions. [2018-11-28 16:08:57,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 16:08:57,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-11-28 16:08:57,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:08:57,600 INFO L225 Difference]: With dead ends: 284 [2018-11-28 16:08:57,600 INFO L226 Difference]: Without dead ends: 242 [2018-11-28 16:08:57,601 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:57,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-28 16:08:57,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2018-11-28 16:08:57,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-11-28 16:08:57,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2018-11-28 16:08:57,616 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 46 [2018-11-28 16:08:57,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:08:57,616 INFO L480 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2018-11-28 16:08:57,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 16:08:57,616 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2018-11-28 16:08:57,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-28 16:08:57,618 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:57,618 INFO L402 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] [2018-11-28 16:08:57,618 INFO L423 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:57,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:57,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1852297644, now seen corresponding path program 1 times [2018-11-28 16:08:57,618 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:57,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:57,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:57,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:57,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:57,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:57,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 16:08:57,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 16:08:57,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 16:08:57,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:57,717 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand 3 states. [2018-11-28 16:08:57,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:08:57,816 INFO L93 Difference]: Finished difference Result 270 states and 354 transitions. [2018-11-28 16:08:57,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 16:08:57,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-11-28 16:08:57,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:08:57,821 INFO L225 Difference]: With dead ends: 270 [2018-11-28 16:08:57,821 INFO L226 Difference]: Without dead ends: 240 [2018-11-28 16:08:57,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:08:57,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-11-28 16:08:57,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2018-11-28 16:08:57,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-11-28 16:08:57,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2018-11-28 16:08:57,844 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2018-11-28 16:08:57,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:08:57,845 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2018-11-28 16:08:57,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 16:08:57,845 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2018-11-28 16:08:57,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-28 16:08:57,847 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:57,847 INFO L402 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] [2018-11-28 16:08:57,848 INFO L423 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:57,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:57,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1745163498, now seen corresponding path program 1 times [2018-11-28 16:08:57,848 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:57,848 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:57,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:57,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:57,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:58,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:58,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 16:08:58,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 16:08:58,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 16:08:58,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 16:08:58,028 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand 8 states. [2018-11-28 16:08:58,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:08:58,417 INFO L93 Difference]: Finished difference Result 252 states and 329 transitions. [2018-11-28 16:08:58,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 16:08:58,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2018-11-28 16:08:58,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:08:58,419 INFO L225 Difference]: With dead ends: 252 [2018-11-28 16:08:58,419 INFO L226 Difference]: Without dead ends: 211 [2018-11-28 16:08:58,420 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-28 16:08:58,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-11-28 16:08:58,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2018-11-28 16:08:58,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-11-28 16:08:58,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 277 transitions. [2018-11-28 16:08:58,440 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 277 transitions. Word has length 51 [2018-11-28 16:08:58,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:08:58,440 INFO L480 AbstractCegarLoop]: Abstraction has 211 states and 277 transitions. [2018-11-28 16:08:58,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 16:08:58,440 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 277 transitions. [2018-11-28 16:08:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-28 16:08:58,442 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:08:58,442 INFO L402 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] [2018-11-28 16:08:58,442 INFO L423 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:08:58,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:08:58,442 INFO L82 PathProgramCache]: Analyzing trace with hash 143486070, now seen corresponding path program 1 times [2018-11-28 16:08:58,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:08:58,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:08:58,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:58,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:08:58,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:08:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:08:58,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:08:58,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:08:58,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 16:08:58,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 16:08:58,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 16:08:58,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 16:08:58,624 INFO L87 Difference]: Start difference. First operand 211 states and 277 transitions. Second operand 9 states. [2018-11-28 16:09:00,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:09:00,507 INFO L93 Difference]: Finished difference Result 227 states and 293 transitions. [2018-11-28 16:09:00,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 16:09:00,507 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2018-11-28 16:09:00,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:09:00,509 INFO L225 Difference]: With dead ends: 227 [2018-11-28 16:09:00,509 INFO L226 Difference]: Without dead ends: 206 [2018-11-28 16:09:00,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-11-28 16:09:00,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-11-28 16:09:00,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2018-11-28 16:09:00,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-11-28 16:09:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 270 transitions. [2018-11-28 16:09:00,522 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 270 transitions. Word has length 52 [2018-11-28 16:09:00,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:09:00,522 INFO L480 AbstractCegarLoop]: Abstraction has 206 states and 270 transitions. [2018-11-28 16:09:00,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 16:09:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 270 transitions. [2018-11-28 16:09:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-28 16:09:00,524 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:09:00,524 INFO L402 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] [2018-11-28 16:09:00,524 INFO L423 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:09:00,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:09:00,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1278878233, now seen corresponding path program 1 times [2018-11-28 16:09:00,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:09:00,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:09:00,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:00,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:09:00,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:09:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:09:00,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:09:00,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 16:09:00,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 16:09:00,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 16:09:00,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:09:00,591 INFO L87 Difference]: Start difference. First operand 206 states and 270 transitions. Second operand 3 states. [2018-11-28 16:09:00,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:09:00,645 INFO L93 Difference]: Finished difference Result 246 states and 315 transitions. [2018-11-28 16:09:00,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 16:09:00,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-11-28 16:09:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:09:00,649 INFO L225 Difference]: With dead ends: 246 [2018-11-28 16:09:00,651 INFO L226 Difference]: Without dead ends: 205 [2018-11-28 16:09:00,651 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:09:00,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-11-28 16:09:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2018-11-28 16:09:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-11-28 16:09:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 265 transitions. [2018-11-28 16:09:00,666 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 265 transitions. Word has length 58 [2018-11-28 16:09:00,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:09:00,666 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 265 transitions. [2018-11-28 16:09:00,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 16:09:00,666 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 265 transitions. [2018-11-28 16:09:00,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-28 16:09:00,668 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:09:00,668 INFO L402 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] [2018-11-28 16:09:00,668 INFO L423 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:09:00,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:09:00,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1933570889, now seen corresponding path program 1 times [2018-11-28 16:09:00,668 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:09:00,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:09:00,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:00,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:09:00,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:09:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:09:00,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:09:00,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 16:09:00,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 16:09:00,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 16:09:00,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-28 16:09:00,896 INFO L87 Difference]: Start difference. First operand 205 states and 265 transitions. Second operand 10 states. [2018-11-28 16:09:01,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:09:01,271 INFO L93 Difference]: Finished difference Result 217 states and 277 transitions. [2018-11-28 16:09:01,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 16:09:01,271 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2018-11-28 16:09:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:09:01,273 INFO L225 Difference]: With dead ends: 217 [2018-11-28 16:09:01,273 INFO L226 Difference]: Without dead ends: 203 [2018-11-28 16:09:01,274 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-11-28 16:09:01,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-11-28 16:09:01,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2018-11-28 16:09:01,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-11-28 16:09:01,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 261 transitions. [2018-11-28 16:09:01,286 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 261 transitions. Word has length 54 [2018-11-28 16:09:01,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:09:01,287 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 261 transitions. [2018-11-28 16:09:01,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 16:09:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 261 transitions. [2018-11-28 16:09:01,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-28 16:09:01,289 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:09:01,289 INFO L402 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] [2018-11-28 16:09:01,289 INFO L423 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:09:01,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:09:01,290 INFO L82 PathProgramCache]: Analyzing trace with hash -309007876, now seen corresponding path program 1 times [2018-11-28 16:09:01,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:09:01,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:09:01,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:01,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:09:01,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:09:01,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:09:01,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:09:01,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 16:09:01,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 16:09:01,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 16:09:01,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 16:09:01,468 INFO L87 Difference]: Start difference. First operand 203 states and 261 transitions. Second operand 8 states. [2018-11-28 16:09:02,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:09:02,271 INFO L93 Difference]: Finished difference Result 351 states and 434 transitions. [2018-11-28 16:09:02,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 16:09:02,272 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2018-11-28 16:09:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:09:02,276 INFO L225 Difference]: With dead ends: 351 [2018-11-28 16:09:02,276 INFO L226 Difference]: Without dead ends: 279 [2018-11-28 16:09:02,277 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-28 16:09:02,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-11-28 16:09:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 213. [2018-11-28 16:09:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-11-28 16:09:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 275 transitions. [2018-11-28 16:09:02,292 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 275 transitions. Word has length 53 [2018-11-28 16:09:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:09:02,294 INFO L480 AbstractCegarLoop]: Abstraction has 213 states and 275 transitions. [2018-11-28 16:09:02,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 16:09:02,294 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 275 transitions. [2018-11-28 16:09:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-28 16:09:02,295 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:09:02,296 INFO L402 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] [2018-11-28 16:09:02,297 INFO L423 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:09:02,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:09:02,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1433722057, now seen corresponding path program 1 times [2018-11-28 16:09:02,298 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:09:02,298 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:09:02,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:02,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:09:02,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:09:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:09:02,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:09:02,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 16:09:02,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 16:09:02,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 16:09:02,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 16:09:02,965 INFO L87 Difference]: Start difference. First operand 213 states and 275 transitions. Second operand 9 states. [2018-11-28 16:09:03,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:09:03,166 INFO L93 Difference]: Finished difference Result 229 states and 291 transitions. [2018-11-28 16:09:03,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 16:09:03,167 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2018-11-28 16:09:03,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:09:03,168 INFO L225 Difference]: With dead ends: 229 [2018-11-28 16:09:03,169 INFO L226 Difference]: Without dead ends: 191 [2018-11-28 16:09:03,169 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-11-28 16:09:03,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-11-28 16:09:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2018-11-28 16:09:03,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-11-28 16:09:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 232 transitions. [2018-11-28 16:09:03,183 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 232 transitions. Word has length 53 [2018-11-28 16:09:03,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:09:03,184 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 232 transitions. [2018-11-28 16:09:03,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 16:09:03,184 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 232 transitions. [2018-11-28 16:09:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-28 16:09:03,186 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:09:03,187 INFO L402 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] [2018-11-28 16:09:03,187 INFO L423 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:09:03,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:09:03,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1317699651, now seen corresponding path program 1 times [2018-11-28 16:09:03,187 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:09:03,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:09:03,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:03,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:09:03,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:09:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:09:03,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:09:03,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 16:09:03,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 16:09:03,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 16:09:03,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-28 16:09:03,377 INFO L87 Difference]: Start difference. First operand 191 states and 232 transitions. Second operand 9 states. [2018-11-28 16:09:04,822 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-11-28 16:09:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:09:05,697 INFO L93 Difference]: Finished difference Result 262 states and 306 transitions. [2018-11-28 16:09:05,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-28 16:09:05,699 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2018-11-28 16:09:05,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:09:05,701 INFO L225 Difference]: With dead ends: 262 [2018-11-28 16:09:05,701 INFO L226 Difference]: Without dead ends: 228 [2018-11-28 16:09:05,702 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2018-11-28 16:09:05,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-11-28 16:09:05,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 191. [2018-11-28 16:09:05,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-11-28 16:09:05,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 230 transitions. [2018-11-28 16:09:05,721 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 230 transitions. Word has length 54 [2018-11-28 16:09:05,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:09:05,721 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 230 transitions. [2018-11-28 16:09:05,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 16:09:05,723 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 230 transitions. [2018-11-28 16:09:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 16:09:05,725 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:09:05,725 INFO L402 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] [2018-11-28 16:09:05,725 INFO L423 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:09:05,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:09:05,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1204113239, now seen corresponding path program 1 times [2018-11-28 16:09:05,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:09:05,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:09:05,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:05,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:09:05,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:09:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:09:06,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:09:06,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 16:09:06,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 16:09:06,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 16:09:06,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 16:09:06,116 INFO L87 Difference]: Start difference. First operand 191 states and 230 transitions. Second operand 6 states. [2018-11-28 16:09:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:09:06,665 INFO L93 Difference]: Finished difference Result 235 states and 282 transitions. [2018-11-28 16:09:06,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 16:09:06,669 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-11-28 16:09:06,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:09:06,672 INFO L225 Difference]: With dead ends: 235 [2018-11-28 16:09:06,673 INFO L226 Difference]: Without dead ends: 199 [2018-11-28 16:09:06,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 16:09:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2018-11-28 16:09:06,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 193. [2018-11-28 16:09:06,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-11-28 16:09:06,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 231 transitions. [2018-11-28 16:09:06,696 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 231 transitions. Word has length 57 [2018-11-28 16:09:06,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:09:06,697 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 231 transitions. [2018-11-28 16:09:06,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 16:09:06,698 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 231 transitions. [2018-11-28 16:09:06,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 16:09:06,700 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:09:06,700 INFO L402 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] [2018-11-28 16:09:06,701 INFO L423 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:09:06,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:09:06,701 INFO L82 PathProgramCache]: Analyzing trace with hash -527681510, now seen corresponding path program 1 times [2018-11-28 16:09:06,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:09:06,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:09:06,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:06,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:09:06,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:09:07,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:09:07,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:09:07,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 16:09:07,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 16:09:07,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 16:09:07,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 16:09:07,079 INFO L87 Difference]: Start difference. First operand 193 states and 231 transitions. Second operand 6 states. [2018-11-28 16:09:07,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:09:07,571 INFO L93 Difference]: Finished difference Result 204 states and 243 transitions. [2018-11-28 16:09:07,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 16:09:07,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-11-28 16:09:07,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:09:07,574 INFO L225 Difference]: With dead ends: 204 [2018-11-28 16:09:07,574 INFO L226 Difference]: Without dead ends: 197 [2018-11-28 16:09:07,574 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 16:09:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-11-28 16:09:07,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2018-11-28 16:09:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-11-28 16:09:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 232 transitions. [2018-11-28 16:09:07,587 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 232 transitions. Word has length 57 [2018-11-28 16:09:07,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:09:07,589 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 232 transitions. [2018-11-28 16:09:07,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 16:09:07,589 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 232 transitions. [2018-11-28 16:09:07,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-28 16:09:07,594 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:09:07,594 INFO L402 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] [2018-11-28 16:09:07,595 INFO L423 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:09:07,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:09:07,595 INFO L82 PathProgramCache]: Analyzing trace with hash -639520605, now seen corresponding path program 1 times [2018-11-28 16:09:07,595 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:09:07,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:09:07,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:07,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:09:07,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:09:07,930 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 5 [2018-11-28 16:09:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:09:08,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:09:08,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 16:09:08,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 16:09:08,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 16:09:08,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 16:09:08,032 INFO L87 Difference]: Start difference. First operand 194 states and 232 transitions. Second operand 5 states. [2018-11-28 16:09:08,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:09:08,092 INFO L93 Difference]: Finished difference Result 230 states and 273 transitions. [2018-11-28 16:09:08,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 16:09:08,094 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2018-11-28 16:09:08,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:09:08,095 INFO L225 Difference]: With dead ends: 230 [2018-11-28 16:09:08,096 INFO L226 Difference]: Without dead ends: 188 [2018-11-28 16:09:08,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 16:09:08,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-11-28 16:09:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2018-11-28 16:09:08,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-11-28 16:09:08,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 223 transitions. [2018-11-28 16:09:08,111 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 223 transitions. Word has length 58 [2018-11-28 16:09:08,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:09:08,111 INFO L480 AbstractCegarLoop]: Abstraction has 188 states and 223 transitions. [2018-11-28 16:09:08,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 16:09:08,111 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 223 transitions. [2018-11-28 16:09:08,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-28 16:09:08,115 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:09:08,115 INFO L402 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] [2018-11-28 16:09:08,115 INFO L423 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:09:08,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:09:08,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1656625880, now seen corresponding path program 1 times [2018-11-28 16:09:08,116 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:09:08,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:09:08,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:08,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:09:08,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:09:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 16:09:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 16:09:08,223 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 16:09:08,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:09:08 BoogieIcfgContainer [2018-11-28 16:09:08,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 16:09:08,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 16:09:08,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 16:09:08,392 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 16:09:08,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:08:53" (3/4) ... [2018-11-28 16:09:08,397 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 16:09:08,570 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 16:09:08,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 16:09:08,576 INFO L168 Benchmark]: Toolchain (without parser) took 17519.63 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 299.9 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -274.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-11-28 16:09:08,578 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 16:09:08,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.34 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 927.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 16:09:08,579 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-28 16:09:08,580 INFO L168 Benchmark]: Boogie Preprocessor took 108.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 16:09:08,580 INFO L168 Benchmark]: RCFGBuilder took 1645.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. [2018-11-28 16:09:08,580 INFO L168 Benchmark]: TraceAbstraction took 14937.14 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -196.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 16:09:08,582 INFO L168 Benchmark]: Witness Printer took 183.44 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2018-11-28 16:09:08,585 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 534.34 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 927.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 104.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 108.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1645.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14937.14 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -196.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 183.44 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1012]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] int KernelMode ; [L23] int Executive ; [L24] int DevicePowerState ; [L25] int s ; [L26] int UNLOADED ; [L27] int NP ; [L28] int DC ; [L29] int SKIP1 ; [L30] int SKIP2 ; [L31] int MPR1 ; [L32] int MPR3 ; [L33] int IPC ; [L34] int pended ; [L35] int compFptr ; [L36] int compRegistered ; [L37] int lowerDriverReturn ; [L38] int setEventCalled ; [L39] int customIrp ; [L40] int myStatus ; VAL [\old(compFptr)=19, \old(compRegistered)=11, \old(customIrp)=14, \old(DC)=7, \old(DevicePowerState)=20, \old(Executive)=12, \old(IPC)=8, \old(KernelMode)=24, \old(lowerDriverReturn)=22, \old(MPR1)=18, \old(MPR3)=16, \old(myStatus)=21, \old(NP)=13, \old(pended)=23, \old(s)=9, \old(setEventCalled)=17, \old(SKIP1)=15, \old(SKIP2)=10, \old(UNLOADED)=6, 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] [L293] int status ; [L294] int irp = __VERIFIER_nondet_int() ; [L295] int pirp ; [L296] int pirp__IoStatus__Status ; [L297] int irp_choice = __VERIFIER_nondet_int() ; [L298] int devobj = __VERIFIER_nondet_int() ; [L299] int __cil_tmp8 ; [L301] KernelMode = 0 [L302] Executive = 0 [L303] DevicePowerState = 1 [L304] s = 0 [L305] UNLOADED = 0 [L306] NP = 0 [L307] DC = 0 [L308] SKIP1 = 0 [L309] SKIP2 = 0 [L310] MPR1 = 0 [L311] MPR3 = 0 [L312] IPC = 0 [L313] pended = 0 [L314] compFptr = 0 [L315] compRegistered = 0 [L316] lowerDriverReturn = 0 [L317] setEventCalled = 0 [L318] customIrp = 0 [L319] myStatus = 0 [L323] status = 0 [L324] 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=0, Executive=0, IPC=0, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L325] 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] [L60] UNLOADED = 0 [L61] NP = 1 [L62] DC = 2 [L63] SKIP1 = 3 [L64] SKIP2 = 4 [L65] MPR1 = 5 [L66] MPR3 = 6 [L67] IPC = 7 [L68] s = UNLOADED [L69] pended = 0 [L70] compFptr = 0 [L71] compRegistered = 0 [L72] lowerDriverReturn = 0 [L73] setEventCalled = 0 [L74] 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] [L325] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L327] COND TRUE status >= 0 [L328] s = NP [L329] customIrp = 0 [L330] setEventCalled = customIrp [L331] lowerDriverReturn = setEventCalled [L332] compRegistered = lowerDriverReturn [L333] pended = compRegistered [L334] pirp__IoStatus__Status = 0 [L335] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L336] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L341] 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] [L46] s = NP [L47] pended = 0 [L48] compFptr = 0 [L49] compRegistered = 0 [L50] lowerDriverReturn = 0 [L51] setEventCalled = 0 [L52] 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] [L341] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L344] COND FALSE !(status < 0) [L348] int tmp_ndt_1; [L349] tmp_ndt_1 = __VERIFIER_nondet_int() [L350] COND FALSE !(tmp_ndt_1 == 0) [L353] int tmp_ndt_2; [L354] tmp_ndt_2 = __VERIFIER_nondet_int() [L355] COND FALSE !(tmp_ndt_2 == 1) [L358] int tmp_ndt_3; [L359] tmp_ndt_3 = __VERIFIER_nondet_int() [L360] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L387] CALL, EXPR KbFilter_PnP(devobj, pirp) 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)=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] [L79] int devExt ; [L80] int irpStack ; [L81] int status ; [L82] int event = __VERIFIER_nondet_int() ; [L83] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L84] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L85] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L86] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L87] int devExt__Started ; [L88] int devExt__Removed ; [L89] int devExt__SurpriseRemoved ; [L90] int Irp__IoStatus__Status ; [L91] int Irp__IoStatus__Information ; [L92] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L93] int irpSp ; [L94] int nextIrpSp ; [L95] int nextIrpSp__Control ; [L96] int irpSp___0 ; [L97] int irpSp__Context ; [L98] int irpSp__Control ; [L99] long __cil_tmp23 ; [L102] status = 0 [L103] devExt = DeviceObject__DeviceExtension [L104] irpStack = Irp__Tail__Overlay__CurrentStackLocation 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)=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, devExt=0, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L105] COND FALSE !(irpStack__MinorFunction == 0) 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)=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, devExt=0, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L108] COND FALSE !(irpStack__MinorFunction == 23) 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)=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, devExt=0, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L111] COND TRUE irpStack__MinorFunction == 2 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)=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, devExt=0, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] devExt__Removed = 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)=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, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L236] COND TRUE s == NP [L237] s = SKIP1 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)=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, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L244] Irp__CurrentLocation ++ [L245] Irp__Tail__Overlay__CurrentStackLocation ++ 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)=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, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L246] 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)=0, \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] [L482] int returnVal2 ; [L483] int compRetStatus ; [L484] int lcontext = __VERIFIER_nondet_int() ; [L485] 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)=0, \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=0, 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] [L488] 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)=0, \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=0, 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] [L501] int tmp_ndt_6; [L502] tmp_ndt_6 = __VERIFIER_nondet_int() [L503] COND FALSE !(tmp_ndt_6 == 0) [L506] int tmp_ndt_7; [L507] tmp_ndt_7 = __VERIFIER_nondet_int() [L508] 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)=0, \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=0, 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=1, tmp_ndt_7=1, UNLOADED=0] [L517] 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)=0, \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=0, 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=1, tmp_ndt_7=1, UNLOADED=0] [L527] 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)=0, \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=0, 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=1, tmp_ndt_7=1, UNLOADED=0] [L531] 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)=0, \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=0, 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=1, tmp_ndt_7=1, UNLOADED=0] [L540] COND TRUE s == SKIP1 [L541] s = SKIP2 [L542] 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)=0, \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=0, 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=1, tmp_ndt_7=1, UNLOADED=0] [L550] 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)=0, \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=0, 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=1, tmp_ndt_7=1, UNLOADED=0] [L246] RET 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)=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, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=0, 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] [L247] status = 0 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)=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, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L289] return (status); 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)=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, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L387] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L387] status = KbFilter_PnP(devobj, pirp) [L411] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L419] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L427] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L428] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L429] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L439] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L446] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L451] 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=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L452] 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] [L1012] __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, 252 locations, 1 error locations. UNSAFE Result, 14.8s OverallTime, 19 OverallIterations, 1 TraceHistogramMax, 9.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4679 SDtfs, 2076 SDslu, 11281 SDs, 0 SdLazy, 1657 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 42 SyntacticMatches, 5 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 203 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 907 NumberOfCodeBlocks, 907 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 833 ConstructedInterpolants, 0 QuantifiedInterpolants, 63203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...