/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:25:58,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:25:58,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:25:58,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:25:58,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:25:58,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:25:58,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:25:58,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:25:58,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:25:58,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:25:58,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:25:58,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:25:58,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:25:58,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:25:58,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:25:58,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:25:58,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:25:58,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:25:58,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:25:58,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:25:58,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:25:58,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:25:58,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:25:58,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:25:58,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 22:25:58,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 22:25:58,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 22:25:58,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 22:25:58,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 22:25:58,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 22:25:58,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 22:25:58,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 22:25:58,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 22:25:58,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 22:25:58,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 22:25:58,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 22:25:58,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 22:25:58,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 22:25:58,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:25:58,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:25:58,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:25:58,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 22:25:58,200 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:25:58,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:25:58,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:25:58,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:25:58,207 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:25:58,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:25:58,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:25:58,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:25:58,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:25:58,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:25:58,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:25:58,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:25:58,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:25:58,210 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:25:58,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:25:58,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:25:58,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:25:58,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:25:58,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:25:58,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:25:58,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:25:58,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:25:58,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:25:58,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:25:58,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:25:58,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:25:58,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:25:58,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:25:58,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:25:58,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:25:58,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:25:58,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:25:58,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:25:58,726 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:25:58,726 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:25:58,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-11-06 22:25:58,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7909f91e1/9d24fbe3ccef4090b93ac9433596f922/FLAG6f6fafa4e [2020-11-06 22:25:59,396 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:25:59,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-11-06 22:25:59,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7909f91e1/9d24fbe3ccef4090b93ac9433596f922/FLAG6f6fafa4e [2020-11-06 22:25:59,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7909f91e1/9d24fbe3ccef4090b93ac9433596f922 [2020-11-06 22:25:59,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:25:59,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:25:59,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:25:59,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:25:59,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:25:59,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:25:59" (1/1) ... [2020-11-06 22:25:59,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b250cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:59, skipping insertion in model container [2020-11-06 22:25:59,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:25:59" (1/1) ... [2020-11-06 22:25:59,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:25:59,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:26:00,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:26:00,165 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:26:00,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:26:00,365 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:26:00,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00 WrapperNode [2020-11-06 22:26:00,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:26:00,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:26:00,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:26:00,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:26:00,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00" (1/1) ... [2020-11-06 22:26:00,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00" (1/1) ... [2020-11-06 22:26:00,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00" (1/1) ... [2020-11-06 22:26:00,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00" (1/1) ... [2020-11-06 22:26:00,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00" (1/1) ... [2020-11-06 22:26:00,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00" (1/1) ... [2020-11-06 22:26:00,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00" (1/1) ... [2020-11-06 22:26:00,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:26:00,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:26:00,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:26:00,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:26:00,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:26:00,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:26:00,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:26:00,550 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:26:00,550 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-11-06 22:26:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-11-06 22:26:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-11-06 22:26:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:26:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-11-06 22:26:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-11-06 22:26:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-11-06 22:26:00,552 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-11-06 22:26:00,552 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-11-06 22:26:00,552 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-11-06 22:26:00,552 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-11-06 22:26:00,552 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-11-06 22:26:00,552 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-11-06 22:26:00,552 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-11-06 22:26:00,553 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-11-06 22:26:00,553 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-11-06 22:26:00,553 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:26:00,553 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:26:00,553 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:26:00,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:26:00,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-11-06 22:26:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:26:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-11-06 22:26:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-11-06 22:26:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-11-06 22:26:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-11-06 22:26:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-11-06 22:26:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-11-06 22:26:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-11-06 22:26:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-11-06 22:26:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-11-06 22:26:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-11-06 22:26:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-11-06 22:26:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-11-06 22:26:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-11-06 22:26:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-11-06 22:26:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-11-06 22:26:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:26:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-11-06 22:26:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:26:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:26:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:26:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:26:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:26:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:26:00,862 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-06 22:26:00,972 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-11-06 22:26:00,972 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-11-06 22:26:00,980 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-06 22:26:01,025 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-11-06 22:26:01,025 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-11-06 22:26:01,146 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-06 22:26:01,165 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-11-06 22:26:01,166 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-11-06 22:26:01,175 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-06 22:26:01,279 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-11-06 22:26:01,279 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-11-06 22:26:01,284 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-06 22:26:01,319 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-11-06 22:26:01,319 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-11-06 22:26:01,327 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-06 22:26:01,370 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-11-06 22:26:01,371 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-11-06 22:26:01,420 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:26:01,420 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 22:26:01,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:01 BoogieIcfgContainer [2020-11-06 22:26:01,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:26:01,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:26:01,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:26:01,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:26:01,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:25:59" (1/3) ... [2020-11-06 22:26:01,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369b0bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:01, skipping insertion in model container [2020-11-06 22:26:01,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:00" (2/3) ... [2020-11-06 22:26:01,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369b0bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:01, skipping insertion in model container [2020-11-06 22:26:01,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:01" (3/3) ... [2020-11-06 22:26:01,432 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-11-06 22:26:01,447 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:26:01,452 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:26:01,465 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:26:01,493 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:26:01,493 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:26:01,494 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:26:01,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:26:01,494 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:26:01,494 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:26:01,494 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:26:01,494 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:26:01,518 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states. [2020-11-06 22:26:01,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-06 22:26:01,525 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:01,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:01,527 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:01,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:01,533 INFO L82 PathProgramCache]: Analyzing trace with hash -11638890, now seen corresponding path program 1 times [2020-11-06 22:26:01,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:01,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006494765] [2020-11-06 22:26:01,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:01,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:02,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:02,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:02,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006494765] [2020-11-06 22:26:02,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:02,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 22:26:02,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677332862] [2020-11-06 22:26:02,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:26:02,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:02,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:26:02,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:26:02,082 INFO L87 Difference]: Start difference. First operand 244 states. Second operand 5 states. [2020-11-06 22:26:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:03,172 INFO L93 Difference]: Finished difference Result 422 states and 634 transitions. [2020-11-06 22:26:03,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:26:03,174 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-06 22:26:03,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:03,189 INFO L225 Difference]: With dead ends: 422 [2020-11-06 22:26:03,189 INFO L226 Difference]: Without dead ends: 260 [2020-11-06 22:26:03,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:26:03,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-11-06 22:26:03,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 232. [2020-11-06 22:26:03,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-06 22:26:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 327 transitions. [2020-11-06 22:26:03,341 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 327 transitions. Word has length 21 [2020-11-06 22:26:03,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:03,342 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 327 transitions. [2020-11-06 22:26:03,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:26:03,342 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 327 transitions. [2020-11-06 22:26:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-06 22:26:03,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:03,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:03,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:26:03,345 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:03,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:03,347 INFO L82 PathProgramCache]: Analyzing trace with hash -2115692353, now seen corresponding path program 1 times [2020-11-06 22:26:03,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:03,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264795155] [2020-11-06 22:26:03,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:03,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:03,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:03,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:03,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264795155] [2020-11-06 22:26:03,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:03,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:26:03,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574749353] [2020-11-06 22:26:03,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 22:26:03,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:03,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 22:26:03,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:26:03,698 INFO L87 Difference]: Start difference. First operand 232 states and 327 transitions. Second operand 6 states. [2020-11-06 22:26:05,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:05,553 INFO L93 Difference]: Finished difference Result 413 states and 568 transitions. [2020-11-06 22:26:05,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:26:05,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-11-06 22:26:05,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:05,565 INFO L225 Difference]: With dead ends: 413 [2020-11-06 22:26:05,565 INFO L226 Difference]: Without dead ends: 351 [2020-11-06 22:26:05,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:26:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-11-06 22:26:05,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 305. [2020-11-06 22:26:05,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-11-06 22:26:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 416 transitions. [2020-11-06 22:26:05,645 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 416 transitions. Word has length 29 [2020-11-06 22:26:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:05,646 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 416 transitions. [2020-11-06 22:26:05,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 22:26:05,646 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 416 transitions. [2020-11-06 22:26:05,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-06 22:26:05,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:05,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:05,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:26:05,648 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:05,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:05,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1248967904, now seen corresponding path program 1 times [2020-11-06 22:26:05,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:05,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680731887] [2020-11-06 22:26:05,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:05,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:05,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:05,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:05,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:05,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680731887] [2020-11-06 22:26:05,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:05,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:26:05,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646482916] [2020-11-06 22:26:05,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 22:26:05,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:05,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 22:26:05,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:26:05,885 INFO L87 Difference]: Start difference. First operand 305 states and 416 transitions. Second operand 6 states. [2020-11-06 22:26:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:07,037 INFO L93 Difference]: Finished difference Result 490 states and 650 transitions. [2020-11-06 22:26:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:26:07,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-11-06 22:26:07,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:07,043 INFO L225 Difference]: With dead ends: 490 [2020-11-06 22:26:07,047 INFO L226 Difference]: Without dead ends: 370 [2020-11-06 22:26:07,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:26:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-11-06 22:26:07,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 345. [2020-11-06 22:26:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-11-06 22:26:07,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2020-11-06 22:26:07,106 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 29 [2020-11-06 22:26:07,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:07,106 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2020-11-06 22:26:07,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 22:26:07,107 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2020-11-06 22:26:07,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-06 22:26:07,117 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:07,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:07,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 22:26:07,118 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:07,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:07,119 INFO L82 PathProgramCache]: Analyzing trace with hash -56636025, now seen corresponding path program 1 times [2020-11-06 22:26:07,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:07,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519514461] [2020-11-06 22:26:07,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:07,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:07,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:07,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:07,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519514461] [2020-11-06 22:26:07,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:07,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:26:07,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78069693] [2020-11-06 22:26:07,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 22:26:07,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:07,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 22:26:07,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:26:07,382 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand 6 states. [2020-11-06 22:26:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:08,508 INFO L93 Difference]: Finished difference Result 349 states and 470 transitions. [2020-11-06 22:26:08,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:26:08,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-11-06 22:26:08,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:08,516 INFO L225 Difference]: With dead ends: 349 [2020-11-06 22:26:08,516 INFO L226 Difference]: Without dead ends: 344 [2020-11-06 22:26:08,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:26:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-11-06 22:26:08,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2020-11-06 22:26:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-11-06 22:26:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 464 transitions. [2020-11-06 22:26:08,561 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 464 transitions. Word has length 39 [2020-11-06 22:26:08,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:08,562 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 464 transitions. [2020-11-06 22:26:08,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 22:26:08,562 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 464 transitions. [2020-11-06 22:26:08,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-06 22:26:08,566 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:08,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:08,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 22:26:08,571 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:08,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:08,572 INFO L82 PathProgramCache]: Analyzing trace with hash 771656722, now seen corresponding path program 1 times [2020-11-06 22:26:08,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:08,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614206628] [2020-11-06 22:26:08,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:08,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:08,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:08,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:08,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-06 22:26:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:08,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:08,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614206628] [2020-11-06 22:26:08,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:08,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:26:08,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144215032] [2020-11-06 22:26:08,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:26:08,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:08,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:26:08,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:26:08,868 INFO L87 Difference]: Start difference. First operand 344 states and 464 transitions. Second operand 8 states. [2020-11-06 22:26:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:10,598 INFO L93 Difference]: Finished difference Result 397 states and 523 transitions. [2020-11-06 22:26:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:26:10,599 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2020-11-06 22:26:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:10,602 INFO L225 Difference]: With dead ends: 397 [2020-11-06 22:26:10,603 INFO L226 Difference]: Without dead ends: 327 [2020-11-06 22:26:10,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:26:10,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-11-06 22:26:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 305. [2020-11-06 22:26:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-11-06 22:26:10,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 407 transitions. [2020-11-06 22:26:10,635 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 407 transitions. Word has length 47 [2020-11-06 22:26:10,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:10,635 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 407 transitions. [2020-11-06 22:26:10,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:26:10,635 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 407 transitions. [2020-11-06 22:26:10,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-06 22:26:10,637 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:10,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:10,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 22:26:10,638 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:10,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:10,638 INFO L82 PathProgramCache]: Analyzing trace with hash -367748221, now seen corresponding path program 1 times [2020-11-06 22:26:10,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:10,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528235657] [2020-11-06 22:26:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:10,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:10,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:10,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-06 22:26:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:11,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-06 22:26:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:11,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:11,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528235657] [2020-11-06 22:26:11,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:11,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-06 22:26:11,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141001927] [2020-11-06 22:26:11,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-06 22:26:11,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:11,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-06 22:26:11,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:26:11,097 INFO L87 Difference]: Start difference. First operand 305 states and 407 transitions. Second operand 12 states. [2020-11-06 22:26:12,479 WARN L194 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-11-06 22:26:12,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:12,667 INFO L93 Difference]: Finished difference Result 337 states and 443 transitions. [2020-11-06 22:26:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 22:26:12,668 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-11-06 22:26:12,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:12,671 INFO L225 Difference]: With dead ends: 337 [2020-11-06 22:26:12,671 INFO L226 Difference]: Without dead ends: 327 [2020-11-06 22:26:12,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-11-06 22:26:12,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-11-06 22:26:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-11-06 22:26:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-11-06 22:26:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 426 transitions. [2020-11-06 22:26:12,704 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 426 transitions. Word has length 46 [2020-11-06 22:26:12,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:12,704 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 426 transitions. [2020-11-06 22:26:12,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-06 22:26:12,705 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 426 transitions. [2020-11-06 22:26:12,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-06 22:26:12,706 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:12,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:12,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 22:26:12,707 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:12,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:12,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1684096649, now seen corresponding path program 1 times [2020-11-06 22:26:12,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:12,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672622700] [2020-11-06 22:26:12,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:12,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:12,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:12,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:12,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-06 22:26:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:13,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-06 22:26:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:13,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:13,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672622700] [2020-11-06 22:26:13,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:13,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-06 22:26:13,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215539233] [2020-11-06 22:26:13,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-06 22:26:13,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:13,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-06 22:26:13,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:26:13,096 INFO L87 Difference]: Start difference. First operand 321 states and 426 transitions. Second operand 12 states. [2020-11-06 22:26:14,669 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-11-06 22:26:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:15,039 INFO L93 Difference]: Finished difference Result 333 states and 436 transitions. [2020-11-06 22:26:15,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 22:26:15,040 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2020-11-06 22:26:15,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:15,044 INFO L225 Difference]: With dead ends: 333 [2020-11-06 22:26:15,044 INFO L226 Difference]: Without dead ends: 327 [2020-11-06 22:26:15,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-11-06 22:26:15,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-11-06 22:26:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-11-06 22:26:15,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-11-06 22:26:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 425 transitions. [2020-11-06 22:26:15,092 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 425 transitions. Word has length 47 [2020-11-06 22:26:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:15,093 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 425 transitions. [2020-11-06 22:26:15,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-06 22:26:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 425 transitions. [2020-11-06 22:26:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-06 22:26:15,094 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:15,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:15,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-06 22:26:15,095 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:15,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:15,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1374313229, now seen corresponding path program 1 times [2020-11-06 22:26:15,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:15,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096604340] [2020-11-06 22:26:15,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:15,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:15,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:15,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:15,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-06 22:26:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:15,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-06 22:26:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:15,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096604340] [2020-11-06 22:26:15,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:15,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:26:15,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353384040] [2020-11-06 22:26:15,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:26:15,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:15,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:26:15,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:26:15,333 INFO L87 Difference]: Start difference. First operand 321 states and 425 transitions. Second operand 8 states. [2020-11-06 22:26:16,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:16,424 INFO L93 Difference]: Finished difference Result 340 states and 448 transitions. [2020-11-06 22:26:16,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-06 22:26:16,425 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-11-06 22:26:16,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:16,428 INFO L225 Difference]: With dead ends: 340 [2020-11-06 22:26:16,428 INFO L226 Difference]: Without dead ends: 273 [2020-11-06 22:26:16,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:26:16,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-11-06 22:26:16,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 243. [2020-11-06 22:26:16,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-11-06 22:26:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 322 transitions. [2020-11-06 22:26:16,454 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 322 transitions. Word has length 48 [2020-11-06 22:26:16,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:16,455 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 322 transitions. [2020-11-06 22:26:16,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:26:16,455 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 322 transitions. [2020-11-06 22:26:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-06 22:26:16,456 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:16,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:16,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 22:26:16,457 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:16,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:16,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1373415642, now seen corresponding path program 1 times [2020-11-06 22:26:16,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:16,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498348159] [2020-11-06 22:26:16,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:16,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:16,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:16,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:16,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-06 22:26:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:16,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:26:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:16,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-06 22:26:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:16,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:16,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498348159] [2020-11-06 22:26:16,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:16,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:26:16,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497165619] [2020-11-06 22:26:16,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:26:16,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:16,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:26:16,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:26:16,722 INFO L87 Difference]: Start difference. First operand 243 states and 322 transitions. Second operand 8 states. [2020-11-06 22:26:17,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:17,999 INFO L93 Difference]: Finished difference Result 272 states and 356 transitions. [2020-11-06 22:26:17,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-06 22:26:18,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-11-06 22:26:18,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:18,002 INFO L225 Difference]: With dead ends: 272 [2020-11-06 22:26:18,002 INFO L226 Difference]: Without dead ends: 241 [2020-11-06 22:26:18,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:26:18,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-11-06 22:26:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-11-06 22:26:18,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-06 22:26:18,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 318 transitions. [2020-11-06 22:26:18,036 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 318 transitions. Word has length 54 [2020-11-06 22:26:18,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:18,037 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 318 transitions. [2020-11-06 22:26:18,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:26:18,037 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 318 transitions. [2020-11-06 22:26:18,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-06 22:26:18,038 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:18,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:18,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-06 22:26:18,039 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:18,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:18,039 INFO L82 PathProgramCache]: Analyzing trace with hash 828283279, now seen corresponding path program 1 times [2020-11-06 22:26:18,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:18,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520619664] [2020-11-06 22:26:18,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:18,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:18,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:18,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:26:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:18,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-06 22:26:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:18,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520619664] [2020-11-06 22:26:18,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:18,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 22:26:18,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95468270] [2020-11-06 22:26:18,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:26:18,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:18,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:26:18,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:26:18,420 INFO L87 Difference]: Start difference. First operand 241 states and 318 transitions. Second operand 11 states. [2020-11-06 22:26:18,698 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-06 22:26:19,391 WARN L194 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-11-06 22:26:20,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:20,210 INFO L93 Difference]: Finished difference Result 287 states and 368 transitions. [2020-11-06 22:26:20,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-06 22:26:20,211 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2020-11-06 22:26:20,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:20,213 INFO L225 Difference]: With dead ends: 287 [2020-11-06 22:26:20,213 INFO L226 Difference]: Without dead ends: 245 [2020-11-06 22:26:20,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-11-06 22:26:20,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-11-06 22:26:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 241. [2020-11-06 22:26:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-06 22:26:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 316 transitions. [2020-11-06 22:26:20,241 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 316 transitions. Word has length 52 [2020-11-06 22:26:20,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:20,242 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 316 transitions. [2020-11-06 22:26:20,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:26:20,242 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 316 transitions. [2020-11-06 22:26:20,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-06 22:26:20,243 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:20,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:20,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-06 22:26:20,244 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:20,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:20,244 INFO L82 PathProgramCache]: Analyzing trace with hash -2043240172, now seen corresponding path program 1 times [2020-11-06 22:26:20,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:20,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177722679] [2020-11-06 22:26:20,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:20,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:20,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:20,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:26:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:20,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-06 22:26:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:20,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177722679] [2020-11-06 22:26:20,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:20,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:26:20,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221648204] [2020-11-06 22:26:20,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:26:20,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:20,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:26:20,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:26:20,550 INFO L87 Difference]: Start difference. First operand 241 states and 316 transitions. Second operand 8 states. [2020-11-06 22:26:21,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:21,722 INFO L93 Difference]: Finished difference Result 271 states and 348 transitions. [2020-11-06 22:26:21,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:26:21,722 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-11-06 22:26:21,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:21,724 INFO L225 Difference]: With dead ends: 271 [2020-11-06 22:26:21,725 INFO L226 Difference]: Without dead ends: 251 [2020-11-06 22:26:21,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:26:21,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-11-06 22:26:21,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 244. [2020-11-06 22:26:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-06 22:26:21,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 320 transitions. [2020-11-06 22:26:21,753 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 320 transitions. Word has length 54 [2020-11-06 22:26:21,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:21,754 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 320 transitions. [2020-11-06 22:26:21,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:26:21,754 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 320 transitions. [2020-11-06 22:26:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-06 22:26:21,755 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:21,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:21,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-06 22:26:21,756 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:21,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:21,756 INFO L82 PathProgramCache]: Analyzing trace with hash 562783382, now seen corresponding path program 1 times [2020-11-06 22:26:21,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:21,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697391492] [2020-11-06 22:26:21,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:21,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:21,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:22,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:22,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:26:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:22,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-06 22:26:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:22,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:22,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697391492] [2020-11-06 22:26:22,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:22,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 22:26:22,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541490582] [2020-11-06 22:26:22,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:26:22,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:22,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:26:22,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:26:22,152 INFO L87 Difference]: Start difference. First operand 244 states and 320 transitions. Second operand 11 states. [2020-11-06 22:26:22,543 WARN L194 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-11-06 22:26:23,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:23,910 INFO L93 Difference]: Finished difference Result 294 states and 374 transitions. [2020-11-06 22:26:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-06 22:26:23,911 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2020-11-06 22:26:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:23,913 INFO L225 Difference]: With dead ends: 294 [2020-11-06 22:26:23,913 INFO L226 Difference]: Without dead ends: 287 [2020-11-06 22:26:23,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-11-06 22:26:23,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-11-06 22:26:23,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 278. [2020-11-06 22:26:23,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-11-06 22:26:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 359 transitions. [2020-11-06 22:26:23,943 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 359 transitions. Word has length 54 [2020-11-06 22:26:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:23,943 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 359 transitions. [2020-11-06 22:26:23,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:26:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 359 transitions. [2020-11-06 22:26:23,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-06 22:26:23,945 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:23,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:23,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-06 22:26:23,946 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:23,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:23,946 INFO L82 PathProgramCache]: Analyzing trace with hash 815292948, now seen corresponding path program 1 times [2020-11-06 22:26:23,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:23,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306040002] [2020-11-06 22:26:23,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:24,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:24,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:24,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:24,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:26:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:24,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-06 22:26:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:24,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306040002] [2020-11-06 22:26:24,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:24,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-06 22:26:24,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735157454] [2020-11-06 22:26:24,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-06 22:26:24,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:24,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-06 22:26:24,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:26:24,315 INFO L87 Difference]: Start difference. First operand 278 states and 359 transitions. Second operand 12 states. [2020-11-06 22:26:25,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:25,574 INFO L93 Difference]: Finished difference Result 296 states and 377 transitions. [2020-11-06 22:26:25,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-06 22:26:25,574 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-11-06 22:26:25,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:25,576 INFO L225 Difference]: With dead ends: 296 [2020-11-06 22:26:25,576 INFO L226 Difference]: Without dead ends: 239 [2020-11-06 22:26:25,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-11-06 22:26:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-11-06 22:26:25,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-11-06 22:26:25,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-11-06 22:26:25,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 309 transitions. [2020-11-06 22:26:25,605 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 309 transitions. Word has length 54 [2020-11-06 22:26:25,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:25,606 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 309 transitions. [2020-11-06 22:26:25,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-06 22:26:25,606 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 309 transitions. [2020-11-06 22:26:25,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-06 22:26:25,607 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:25,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:25,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-06 22:26:25,608 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:25,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:25,609 INFO L82 PathProgramCache]: Analyzing trace with hash 612867256, now seen corresponding path program 1 times [2020-11-06 22:26:25,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:25,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131508739] [2020-11-06 22:26:25,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:25,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:25,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:25,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:25,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-06 22:26:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:25,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 22:26:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:25,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:26:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:25,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:25,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131508739] [2020-11-06 22:26:25,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:25,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 22:26:25,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642909762] [2020-11-06 22:26:25,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:26:25,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:25,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:26:25,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:26:25,928 INFO L87 Difference]: Start difference. First operand 239 states and 309 transitions. Second operand 11 states. [2020-11-06 22:26:27,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:27,180 INFO L93 Difference]: Finished difference Result 337 states and 432 transitions. [2020-11-06 22:26:27,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 22:26:27,181 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 58 [2020-11-06 22:26:27,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:27,183 INFO L225 Difference]: With dead ends: 337 [2020-11-06 22:26:27,183 INFO L226 Difference]: Without dead ends: 276 [2020-11-06 22:26:27,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2020-11-06 22:26:27,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-11-06 22:26:27,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 254. [2020-11-06 22:26:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-11-06 22:26:27,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 328 transitions. [2020-11-06 22:26:27,212 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 328 transitions. Word has length 58 [2020-11-06 22:26:27,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:27,212 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 328 transitions. [2020-11-06 22:26:27,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:26:27,212 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 328 transitions. [2020-11-06 22:26:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-06 22:26:27,214 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:27,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:27,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-06 22:26:27,214 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:27,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:27,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1024006167, now seen corresponding path program 1 times [2020-11-06 22:26:27,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:27,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462501021] [2020-11-06 22:26:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:27,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:27,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:27,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-06 22:26:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:27,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 22:26:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:27,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:26:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:27,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462501021] [2020-11-06 22:26:27,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:27,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 22:26:27,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813230826] [2020-11-06 22:26:27,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:26:27,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:27,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:26:27,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:26:27,509 INFO L87 Difference]: Start difference. First operand 254 states and 328 transitions. Second operand 11 states. [2020-11-06 22:26:28,065 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-06 22:26:28,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:28,632 INFO L93 Difference]: Finished difference Result 297 states and 381 transitions. [2020-11-06 22:26:28,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:26:28,633 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 58 [2020-11-06 22:26:28,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:28,635 INFO L225 Difference]: With dead ends: 297 [2020-11-06 22:26:28,635 INFO L226 Difference]: Without dead ends: 260 [2020-11-06 22:26:28,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:26:28,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-11-06 22:26:28,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 248. [2020-11-06 22:26:28,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-11-06 22:26:28,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 319 transitions. [2020-11-06 22:26:28,667 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 319 transitions. Word has length 58 [2020-11-06 22:26:28,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:28,667 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 319 transitions. [2020-11-06 22:26:28,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:26:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 319 transitions. [2020-11-06 22:26:28,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-06 22:26:28,669 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:28,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:28,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-06 22:26:28,670 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:28,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:28,670 INFO L82 PathProgramCache]: Analyzing trace with hash 220832487, now seen corresponding path program 1 times [2020-11-06 22:26:28,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:28,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131060308] [2020-11-06 22:26:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:28,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:28,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:28,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:28,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:26:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:28,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:29,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131060308] [2020-11-06 22:26:29,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:29,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-06 22:26:29,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556184940] [2020-11-06 22:26:29,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-06 22:26:29,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:29,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-06 22:26:29,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-11-06 22:26:29,014 INFO L87 Difference]: Start difference. First operand 248 states and 319 transitions. Second operand 14 states. [2020-11-06 22:26:30,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:30,191 INFO L93 Difference]: Finished difference Result 274 states and 345 transitions. [2020-11-06 22:26:30,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 22:26:30,192 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-11-06 22:26:30,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:30,195 INFO L225 Difference]: With dead ends: 274 [2020-11-06 22:26:30,196 INFO L226 Difference]: Without dead ends: 242 [2020-11-06 22:26:30,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-11-06 22:26:30,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-11-06 22:26:30,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-11-06 22:26:30,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-11-06 22:26:30,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 310 transitions. [2020-11-06 22:26:30,226 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 310 transitions. Word has length 55 [2020-11-06 22:26:30,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:30,227 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 310 transitions. [2020-11-06 22:26:30,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-06 22:26:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 310 transitions. [2020-11-06 22:26:30,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-06 22:26:30,231 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:30,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:30,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-06 22:26:30,231 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:30,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:30,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1773056178, now seen corresponding path program 1 times [2020-11-06 22:26:30,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:30,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643761222] [2020-11-06 22:26:30,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:30,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:30,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:30,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:30,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-06 22:26:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:30,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-06 22:26:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:30,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:26:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:30,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643761222] [2020-11-06 22:26:30,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:30,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:26:30,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888828531] [2020-11-06 22:26:30,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:26:30,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:30,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:26:30,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:26:30,515 INFO L87 Difference]: Start difference. First operand 242 states and 310 transitions. Second operand 8 states. [2020-11-06 22:26:31,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:31,368 INFO L93 Difference]: Finished difference Result 301 states and 374 transitions. [2020-11-06 22:26:31,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:26:31,368 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-11-06 22:26:31,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:31,370 INFO L225 Difference]: With dead ends: 301 [2020-11-06 22:26:31,371 INFO L226 Difference]: Without dead ends: 241 [2020-11-06 22:26:31,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:26:31,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-11-06 22:26:31,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-11-06 22:26:31,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-06 22:26:31,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 305 transitions. [2020-11-06 22:26:31,397 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 305 transitions. Word has length 61 [2020-11-06 22:26:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:31,397 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 305 transitions. [2020-11-06 22:26:31,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:26:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 305 transitions. [2020-11-06 22:26:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-06 22:26:31,398 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:31,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:31,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-06 22:26:31,399 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:31,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:31,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1000780740, now seen corresponding path program 1 times [2020-11-06 22:26:31,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:31,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599530482] [2020-11-06 22:26:31,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:31,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:31,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:31,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:31,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-06 22:26:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:31,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-06 22:26:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:31,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:26:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:31,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599530482] [2020-11-06 22:26:31,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:31,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-11-06 22:26:31,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137998833] [2020-11-06 22:26:31,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-06 22:26:31,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:31,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-06 22:26:31,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:26:31,768 INFO L87 Difference]: Start difference. First operand 241 states and 305 transitions. Second operand 15 states. [2020-11-06 22:26:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:32,944 INFO L93 Difference]: Finished difference Result 259 states and 323 transitions. [2020-11-06 22:26:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:26:32,944 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2020-11-06 22:26:32,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:32,946 INFO L225 Difference]: With dead ends: 259 [2020-11-06 22:26:32,946 INFO L226 Difference]: Without dead ends: 211 [2020-11-06 22:26:32,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-11-06 22:26:32,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-11-06 22:26:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-11-06 22:26:32,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-06 22:26:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2020-11-06 22:26:32,968 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 62 [2020-11-06 22:26:32,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:32,968 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2020-11-06 22:26:32,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-06 22:26:32,968 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2020-11-06 22:26:32,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-06 22:26:32,969 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:32,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:32,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-06 22:26:32,970 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:32,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:32,970 INFO L82 PathProgramCache]: Analyzing trace with hash 383308959, now seen corresponding path program 1 times [2020-11-06 22:26:32,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:32,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715564824] [2020-11-06 22:26:32,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:33,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:33,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:33,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:33,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:26:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:33,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-06 22:26:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:33,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:26:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:33,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715564824] [2020-11-06 22:26:33,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:33,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-11-06 22:26:33,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556684182] [2020-11-06 22:26:33,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-06 22:26:33,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:33,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-06 22:26:33,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:26:33,337 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand 15 states. [2020-11-06 22:26:34,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:34,309 INFO L93 Difference]: Finished difference Result 229 states and 280 transitions. [2020-11-06 22:26:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:26:34,309 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2020-11-06 22:26:34,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:34,311 INFO L225 Difference]: With dead ends: 229 [2020-11-06 22:26:34,311 INFO L226 Difference]: Without dead ends: 208 [2020-11-06 22:26:34,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-11-06 22:26:34,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-06 22:26:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-11-06 22:26:34,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-11-06 22:26:34,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 256 transitions. [2020-11-06 22:26:34,334 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 256 transitions. Word has length 58 [2020-11-06 22:26:34,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:34,334 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 256 transitions. [2020-11-06 22:26:34,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-06 22:26:34,334 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 256 transitions. [2020-11-06 22:26:34,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-06 22:26:34,335 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:34,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:34,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-06 22:26:34,336 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:34,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:34,336 INFO L82 PathProgramCache]: Analyzing trace with hash 242517506, now seen corresponding path program 1 times [2020-11-06 22:26:34,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:34,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808364697] [2020-11-06 22:26:34,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:34,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:34,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:34,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:34,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-06 22:26:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:34,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-06 22:26:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:34,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 22:26:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:34,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808364697] [2020-11-06 22:26:34,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:34,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-11-06 22:26:34,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839043812] [2020-11-06 22:26:34,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-06 22:26:34,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:34,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-06 22:26:34,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:26:34,678 INFO L87 Difference]: Start difference. First operand 208 states and 256 transitions. Second operand 15 states. [2020-11-06 22:26:35,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:35,931 INFO L93 Difference]: Finished difference Result 226 states and 274 transitions. [2020-11-06 22:26:35,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:26:35,932 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2020-11-06 22:26:35,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:35,933 INFO L225 Difference]: With dead ends: 226 [2020-11-06 22:26:35,934 INFO L226 Difference]: Without dead ends: 182 [2020-11-06 22:26:35,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-11-06 22:26:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-11-06 22:26:35,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-11-06 22:26:35,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-11-06 22:26:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 224 transitions. [2020-11-06 22:26:35,954 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 224 transitions. Word has length 57 [2020-11-06 22:26:35,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:35,955 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 224 transitions. [2020-11-06 22:26:35,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-06 22:26:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 224 transitions. [2020-11-06 22:26:35,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-06 22:26:35,956 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:35,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:35,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-06 22:26:35,956 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:35,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:35,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1809471531, now seen corresponding path program 1 times [2020-11-06 22:26:35,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:35,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704623779] [2020-11-06 22:26:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:36,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:36,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:36,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:36,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-06 22:26:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:36,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 22:26:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:36,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:26:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:36,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704623779] [2020-11-06 22:26:36,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:36,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:26:36,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670365066] [2020-11-06 22:26:36,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:26:36,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:36,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:26:36,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:26:36,216 INFO L87 Difference]: Start difference. First operand 182 states and 224 transitions. Second operand 8 states. [2020-11-06 22:26:37,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:37,186 INFO L93 Difference]: Finished difference Result 356 states and 438 transitions. [2020-11-06 22:26:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:26:37,186 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-11-06 22:26:37,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:37,189 INFO L225 Difference]: With dead ends: 356 [2020-11-06 22:26:37,189 INFO L226 Difference]: Without dead ends: 348 [2020-11-06 22:26:37,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:26:37,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-11-06 22:26:37,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 318. [2020-11-06 22:26:37,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-11-06 22:26:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 399 transitions. [2020-11-06 22:26:37,225 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 399 transitions. Word has length 59 [2020-11-06 22:26:37,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:37,225 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 399 transitions. [2020-11-06 22:26:37,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:26:37,225 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 399 transitions. [2020-11-06 22:26:37,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-06 22:26:37,226 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:37,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:37,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-06 22:26:37,227 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:37,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:37,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1676149139, now seen corresponding path program 1 times [2020-11-06 22:26:37,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:37,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419562619] [2020-11-06 22:26:37,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:37,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:37,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:37,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:37,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-06 22:26:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:37,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 22:26:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:37,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:26:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:37,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:37,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419562619] [2020-11-06 22:26:37,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:37,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:26:37,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747966546] [2020-11-06 22:26:37,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:26:37,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:37,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:26:37,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:26:37,534 INFO L87 Difference]: Start difference. First operand 318 states and 399 transitions. Second operand 10 states. [2020-11-06 22:26:38,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:38,092 INFO L93 Difference]: Finished difference Result 383 states and 474 transitions. [2020-11-06 22:26:38,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-06 22:26:38,095 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2020-11-06 22:26:38,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:38,097 INFO L225 Difference]: With dead ends: 383 [2020-11-06 22:26:38,097 INFO L226 Difference]: Without dead ends: 306 [2020-11-06 22:26:38,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:26:38,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-06 22:26:38,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2020-11-06 22:26:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-11-06 22:26:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 381 transitions. [2020-11-06 22:26:38,129 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 381 transitions. Word has length 59 [2020-11-06 22:26:38,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:38,129 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 381 transitions. [2020-11-06 22:26:38,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:26:38,129 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 381 transitions. [2020-11-06 22:26:38,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-06 22:26:38,130 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:38,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:38,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-06 22:26:38,131 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:38,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:38,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1639264595, now seen corresponding path program 1 times [2020-11-06 22:26:38,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:38,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186400118] [2020-11-06 22:26:38,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:38,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:38,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:38,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:38,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:26:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:38,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-06 22:26:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:38,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186400118] [2020-11-06 22:26:38,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:38,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-06 22:26:38,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438133939] [2020-11-06 22:26:38,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-06 22:26:38,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:38,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-06 22:26:38,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-11-06 22:26:38,480 INFO L87 Difference]: Start difference. First operand 306 states and 381 transitions. Second operand 13 states. [2020-11-06 22:26:39,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:39,900 INFO L93 Difference]: Finished difference Result 399 states and 479 transitions. [2020-11-06 22:26:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:26:39,900 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2020-11-06 22:26:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:39,903 INFO L225 Difference]: With dead ends: 399 [2020-11-06 22:26:39,903 INFO L226 Difference]: Without dead ends: 363 [2020-11-06 22:26:39,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2020-11-06 22:26:39,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-11-06 22:26:39,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 320. [2020-11-06 22:26:39,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-11-06 22:26:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 395 transitions. [2020-11-06 22:26:39,941 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 395 transitions. Word has length 56 [2020-11-06 22:26:39,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:39,941 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 395 transitions. [2020-11-06 22:26:39,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-06 22:26:39,942 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 395 transitions. [2020-11-06 22:26:39,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-06 22:26:39,944 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:39,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:39,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-06 22:26:39,944 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:39,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:39,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1701410350, now seen corresponding path program 1 times [2020-11-06 22:26:39,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:39,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371527671] [2020-11-06 22:26:39,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:40,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:40,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:40,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:40,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:26:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:40,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-06 22:26:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:40,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:40,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371527671] [2020-11-06 22:26:40,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:40,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-06 22:26:40,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87778288] [2020-11-06 22:26:40,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-06 22:26:40,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:40,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-06 22:26:40,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-11-06 22:26:40,259 INFO L87 Difference]: Start difference. First operand 320 states and 395 transitions. Second operand 14 states. [2020-11-06 22:26:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:41,210 INFO L93 Difference]: Finished difference Result 352 states and 427 transitions. [2020-11-06 22:26:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-06 22:26:41,210 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-11-06 22:26:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:41,212 INFO L225 Difference]: With dead ends: 352 [2020-11-06 22:26:41,212 INFO L226 Difference]: Without dead ends: 252 [2020-11-06 22:26:41,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-11-06 22:26:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-11-06 22:26:41,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-11-06 22:26:41,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-11-06 22:26:41,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 281 transitions. [2020-11-06 22:26:41,253 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 281 transitions. Word has length 56 [2020-11-06 22:26:41,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:41,253 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 281 transitions. [2020-11-06 22:26:41,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-06 22:26:41,253 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 281 transitions. [2020-11-06 22:26:41,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-06 22:26:41,256 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:41,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:41,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-06 22:26:41,257 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:41,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:41,257 INFO L82 PathProgramCache]: Analyzing trace with hash -591053523, now seen corresponding path program 1 times [2020-11-06 22:26:41,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:41,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435922855] [2020-11-06 22:26:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:41,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:26:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:41,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:26:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:41,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:26:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:41,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-06 22:26:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:41,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-06 22:26:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:26:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:26:41,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435922855] [2020-11-06 22:26:41,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:26:41,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:26:41,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588358106] [2020-11-06 22:26:41,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:26:41,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:26:41,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:26:41,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:26:41,480 INFO L87 Difference]: Start difference. First operand 252 states and 281 transitions. Second operand 8 states. [2020-11-06 22:26:42,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:26:42,002 INFO L93 Difference]: Finished difference Result 364 states and 412 transitions. [2020-11-06 22:26:42,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:26:42,002 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-11-06 22:26:42,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:26:42,004 INFO L225 Difference]: With dead ends: 364 [2020-11-06 22:26:42,005 INFO L226 Difference]: Without dead ends: 290 [2020-11-06 22:26:42,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:26:42,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-11-06 22:26:42,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 264. [2020-11-06 22:26:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-11-06 22:26:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 297 transitions. [2020-11-06 22:26:42,034 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 297 transitions. Word has length 57 [2020-11-06 22:26:42,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:26:42,035 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 297 transitions. [2020-11-06 22:26:42,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:26:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 297 transitions. [2020-11-06 22:26:42,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-06 22:26:42,036 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:26:42,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:26:42,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-06 22:26:42,036 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:26:42,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:26:42,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2124127277, now seen corresponding path program 1 times [2020-11-06 22:26:42,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:26:42,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141379770] [2020-11-06 22:26:42,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:26:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:26:42,056 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:26:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:26:42,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:26:42,124 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 22:26:42,124 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 22:26:42,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-06 22:26:42,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:26:42 BoogieIcfgContainer [2020-11-06 22:26:42,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:26:42,274 INFO L168 Benchmark]: Toolchain (without parser) took 42557.57 ms. Allocated memory was 155.2 MB in the beginning and 407.9 MB in the end (delta: 252.7 MB). Free memory was 109.6 MB in the beginning and 206.4 MB in the end (delta: -96.8 MB). Peak memory consumption was 158.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:26:42,274 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:26:42,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.77 ms. Allocated memory is still 155.2 MB. Free memory was 109.0 MB in the beginning and 133.8 MB in the end (delta: -24.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2020-11-06 22:26:42,275 INFO L168 Benchmark]: Boogie Preprocessor took 74.89 ms. Allocated memory is still 155.2 MB. Free memory was 133.8 MB in the beginning and 130.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:26:42,280 INFO L168 Benchmark]: RCFGBuilder took 980.71 ms. Allocated memory was 155.2 MB in the beginning and 194.0 MB in the end (delta: 38.8 MB). Free memory was 130.6 MB in the beginning and 144.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 44.3 MB. Max. memory is 8.0 GB. [2020-11-06 22:26:42,280 INFO L168 Benchmark]: TraceAbstraction took 40847.24 ms. Allocated memory was 194.0 MB in the beginning and 407.9 MB in the end (delta: 213.9 MB). Free memory was 144.3 MB in the beginning and 206.4 MB in the end (delta: -62.2 MB). Peak memory consumption was 151.7 MB. Max. memory is 8.0 GB. [2020-11-06 22:26:42,285 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 640.77 ms. Allocated memory is still 155.2 MB. Free memory was 109.0 MB in the beginning and 133.8 MB in the end (delta: -24.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.89 ms. Allocated memory is still 155.2 MB. Free memory was 133.8 MB in the beginning and 130.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 980.71 ms. Allocated memory was 155.2 MB in the beginning and 194.0 MB in the end (delta: 38.8 MB). Free memory was 130.6 MB in the beginning and 144.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 44.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 40847.24 ms. Allocated memory was 194.0 MB in the beginning and 407.9 MB in the end (delta: 213.9 MB). Free memory was 144.3 MB in the beginning and 206.4 MB in the end (delta: -62.2 MB). Peak memory consumption was 151.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [\old(compFptr)=57, \old(compRegistered)=67, \old(customIrp)=70, \old(DC)=64, \old(DevicePowerState)=73, \old(Executive)=66, \old(IPC)=49, \old(KernelMode)=60, \old(lowerDriverReturn)=75, \old(MPR1)=58, \old(MPR3)=71, \old(myStatus)=74, \old(NP)=68, \old(pended)=59, \old(s)=50, \old(setEventCalled)=72, \old(SKIP1)=56, \old(SKIP2)=52, \old(UNLOADED)=62, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp 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=-3, Executive=0, IPC=0, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L326] 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] [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [\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] [L326] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 VAL [\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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L342] 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=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [\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=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L342] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 VAL [\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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L388] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L236] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L247] CALL IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L551] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L247] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L248] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L290] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L388] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L420] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L428] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L429] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L430] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L440] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L447] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L452] 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=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L453] 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=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] CALL reach_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=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L3] __assert_fail("0", "kbfiltr_simpl2.cil-2.c", 3, "reach_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=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.6s, OverallIterations: 26, TraceHistogramMax: 1, AutomataDifference: 31.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5538 SDtfs, 8262 SDslu, 8531 SDs, 0 SdLazy, 18790 SolverSat, 1740 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 510 GetRequests, 221 SyntacticMatches, 1 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 25 MinimizatonAttempts, 316 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 1327 NumberOfCodeBlocks, 1327 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1245 ConstructedInterpolants, 0 QuantifiedInterpolants, 336198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...