/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-b8ad66e [2020-10-23 18:22:43,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:22:43,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:22:43,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:22:43,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:22:43,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:22:43,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:22:43,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:22:43,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:22:43,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:22:43,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:22:43,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:22:43,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:22:43,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:22:43,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:22:43,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:22:43,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:22:43,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:22:43,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:22:43,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:22:43,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:22:43,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:22:43,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:22:43,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:22:43,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:22:43,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:22:43,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:22:43,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:22:43,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:22:43,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:22:43,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:22:43,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:22:43,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:22:43,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:22:43,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:22:43,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:22:43,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:22:43,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:22:43,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:22:43,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:22:43,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:22:43,717 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 [2020-10-23 18:22:43,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:22:43,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:22:43,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:22:43,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:22:43,766 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:22:43,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:22:43,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:22:43,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:22:43,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:22:43,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:22:43,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:22:43,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:22:43,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:22:43,767 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:22:43,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:22:43,768 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:22:43,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:22:43,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:22:43,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:22:43,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:22:43,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:22:43,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:22:43,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:22:43,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:22:43,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:22:43,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:22:43,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:22:43,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:22:43,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:22:43,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:22:44,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:22:44,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:22:44,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:22:44,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:22:44,277 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:22:44,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-10-23 18:22:44,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ce2e416e/344b649bd1b94a1197c2ced5f59e727a/FLAG2cf22a8af [2020-10-23 18:22:45,117 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:22:45,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-10-23 18:22:45,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ce2e416e/344b649bd1b94a1197c2ced5f59e727a/FLAG2cf22a8af [2020-10-23 18:22:45,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ce2e416e/344b649bd1b94a1197c2ced5f59e727a [2020-10-23 18:22:45,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:22:45,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:22:45,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:22:45,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:22:45,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:22:45,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:22:45" (1/1) ... [2020-10-23 18:22:45,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1620cbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:45, skipping insertion in model container [2020-10-23 18:22:45,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:22:45" (1/1) ... [2020-10-23 18:22:45,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:22:45,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:22:45,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:22:45,873 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:22:45,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:22:46,013 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:22:46,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46 WrapperNode [2020-10-23 18:22:46,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:22:46,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:22:46,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:22:46,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:22:46,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46" (1/1) ... [2020-10-23 18:22:46,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46" (1/1) ... [2020-10-23 18:22:46,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46" (1/1) ... [2020-10-23 18:22:46,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46" (1/1) ... [2020-10-23 18:22:46,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46" (1/1) ... [2020-10-23 18:22:46,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46" (1/1) ... [2020-10-23 18:22:46,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46" (1/1) ... [2020-10-23 18:22:46,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:22:46,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:22:46,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:22:46,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:22:46,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46" (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 [2020-10-23 18:22:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:22:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:22:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:22:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-23 18:22:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-23 18:22:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-10-23 18:22:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:22:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-23 18:22:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-23 18:22:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-23 18:22:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-23 18:22:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-23 18:22:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-10-23 18:22:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-10-23 18:22:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-10-23 18:22:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-10-23 18:22:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-10-23 18:22:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-10-23 18:22:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-23 18:22:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:22:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:22:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:22:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:22:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-23 18:22:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:22:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-23 18:22:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-10-23 18:22:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-23 18:22:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-23 18:22:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-23 18:22:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-10-23 18:22:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-10-23 18:22:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-10-23 18:22:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-10-23 18:22:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-10-23 18:22:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-10-23 18:22:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-23 18:22:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-23 18:22:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-23 18:22:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-23 18:22:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:22:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-23 18:22:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:22:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:22:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:22:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:22:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:22:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:22:46,842 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-23 18:22:47,015 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-10-23 18:22:47,016 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-10-23 18:22:47,023 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-23 18:22:47,070 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-23 18:22:47,070 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-23 18:22:47,166 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-23 18:22:47,187 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-23 18:22:47,187 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-23 18:22:47,195 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-23 18:22:47,328 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-10-23 18:22:47,328 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-10-23 18:22:47,333 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-23 18:22:47,360 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-10-23 18:22:47,360 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-10-23 18:22:47,366 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-23 18:22:47,401 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-23 18:22:47,401 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-23 18:22:47,455 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:22:47,455 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 18:22:47,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:22:47 BoogieIcfgContainer [2020-10-23 18:22:47,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:22:47,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:22:47,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:22:47,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:22:47,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:22:45" (1/3) ... [2020-10-23 18:22:47,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a2c541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:22:47, skipping insertion in model container [2020-10-23 18:22:47,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:22:46" (2/3) ... [2020-10-23 18:22:47,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a2c541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:22:47, skipping insertion in model container [2020-10-23 18:22:47,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:22:47" (3/3) ... [2020-10-23 18:22:47,472 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-10-23 18:22:47,490 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:22:47,497 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:22:47,512 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:22:47,548 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:22:47,548 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:22:47,548 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:22:47,548 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:22:47,549 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:22:47,549 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:22:47,549 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:22:47,549 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:22:47,594 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states. [2020-10-23 18:22:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-23 18:22:47,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:22:47,617 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] [2020-10-23 18:22:47,618 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:22:47,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:22:47,633 INFO L82 PathProgramCache]: Analyzing trace with hash -11638890, now seen corresponding path program 1 times [2020-10-23 18:22:47,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:22:47,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651060076] [2020-10-23 18:22:47,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:22:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:48,142 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:22:48,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:22:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:48,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:22:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:48,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:22:48,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651060076] [2020-10-23 18:22:48,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:22:48,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 18:22:48,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644574199] [2020-10-23 18:22:48,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:22:48,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:22:48,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:22:48,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:22:48,309 INFO L87 Difference]: Start difference. First operand 244 states. Second operand 5 states. [2020-10-23 18:22:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:22:49,725 INFO L93 Difference]: Finished difference Result 422 states and 634 transitions. [2020-10-23 18:22:49,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:22:49,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-23 18:22:49,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:22:49,743 INFO L225 Difference]: With dead ends: 422 [2020-10-23 18:22:49,744 INFO L226 Difference]: Without dead ends: 260 [2020-10-23 18:22:49,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:22:49,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-23 18:22:49,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 232. [2020-10-23 18:22:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-23 18:22:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 327 transitions. [2020-10-23 18:22:49,867 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 327 transitions. Word has length 21 [2020-10-23 18:22:49,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:22:49,868 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 327 transitions. [2020-10-23 18:22:49,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:22:49,868 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 327 transitions. [2020-10-23 18:22:49,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-23 18:22:49,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:22:49,871 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] [2020-10-23 18:22:49,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:22:49,874 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:22:49,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:22:49,884 INFO L82 PathProgramCache]: Analyzing trace with hash -2115692353, now seen corresponding path program 1 times [2020-10-23 18:22:49,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:22:49,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686364875] [2020-10-23 18:22:49,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:22:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:50,153 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:22:50,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:22:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:50,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:22:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:50,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:22:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:50,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:22:50,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686364875] [2020-10-23 18:22:50,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:22:50,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:22:50,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509319427] [2020-10-23 18:22:50,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 18:22:50,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:22:50,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 18:22:50,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:22:50,291 INFO L87 Difference]: Start difference. First operand 232 states and 327 transitions. Second operand 6 states. [2020-10-23 18:22:50,434 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-23 18:22:52,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:22:52,313 INFO L93 Difference]: Finished difference Result 413 states and 568 transitions. [2020-10-23 18:22:52,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:22:52,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-23 18:22:52,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:22:52,322 INFO L225 Difference]: With dead ends: 413 [2020-10-23 18:22:52,322 INFO L226 Difference]: Without dead ends: 351 [2020-10-23 18:22:52,324 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 [2020-10-23 18:22:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-23 18:22:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 305. [2020-10-23 18:22:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-23 18:22:52,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 416 transitions. [2020-10-23 18:22:52,404 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 416 transitions. Word has length 29 [2020-10-23 18:22:52,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:22:52,405 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 416 transitions. [2020-10-23 18:22:52,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 18:22:52,405 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 416 transitions. [2020-10-23 18:22:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-23 18:22:52,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:22:52,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:22:52,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:22:52,407 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:22:52,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:22:52,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1248967904, now seen corresponding path program 1 times [2020-10-23 18:22:52,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:22:52,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951405835] [2020-10-23 18:22:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:22:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:52,591 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:22:52,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:22:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:52,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:22:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:52,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:22:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:22:52,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951405835] [2020-10-23 18:22:52,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:22:52,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:22:52,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701328015] [2020-10-23 18:22:52,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 18:22:52,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:22:52,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 18:22:52,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:22:52,723 INFO L87 Difference]: Start difference. First operand 305 states and 416 transitions. Second operand 6 states. [2020-10-23 18:22:53,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:22:53,985 INFO L93 Difference]: Finished difference Result 490 states and 650 transitions. [2020-10-23 18:22:53,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:22:53,986 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-23 18:22:53,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:22:53,990 INFO L225 Difference]: With dead ends: 490 [2020-10-23 18:22:53,990 INFO L226 Difference]: Without dead ends: 370 [2020-10-23 18:22:53,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:22:53,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-23 18:22:54,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 345. [2020-10-23 18:22:54,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-23 18:22:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2020-10-23 18:22:54,039 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 29 [2020-10-23 18:22:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:22:54,039 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2020-10-23 18:22:54,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 18:22:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2020-10-23 18:22:54,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-23 18:22:54,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:22:54,042 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] [2020-10-23 18:22:54,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:22:54,043 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:22:54,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:22:54,043 INFO L82 PathProgramCache]: Analyzing trace with hash -56636025, now seen corresponding path program 1 times [2020-10-23 18:22:54,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:22:54,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938109362] [2020-10-23 18:22:54,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:22:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:54,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:22:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:54,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:22:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:54,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:22:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:54,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:22:54,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938109362] [2020-10-23 18:22:54,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:22:54,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:22:54,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116853010] [2020-10-23 18:22:54,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 18:22:54,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:22:54,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 18:22:54,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:22:54,326 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand 6 states. [2020-10-23 18:22:54,469 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-23 18:22:55,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:22:55,583 INFO L93 Difference]: Finished difference Result 349 states and 470 transitions. [2020-10-23 18:22:55,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:22:55,584 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-23 18:22:55,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:22:55,591 INFO L225 Difference]: With dead ends: 349 [2020-10-23 18:22:55,591 INFO L226 Difference]: Without dead ends: 344 [2020-10-23 18:22:55,592 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 [2020-10-23 18:22:55,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-10-23 18:22:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2020-10-23 18:22:55,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-10-23 18:22:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 464 transitions. [2020-10-23 18:22:55,631 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 464 transitions. Word has length 39 [2020-10-23 18:22:55,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:22:55,631 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 464 transitions. [2020-10-23 18:22:55,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 18:22:55,631 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 464 transitions. [2020-10-23 18:22:55,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-23 18:22:55,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:22:55,635 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] [2020-10-23 18:22:55,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:22:55,636 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:22:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:22:55,636 INFO L82 PathProgramCache]: Analyzing trace with hash 771656722, now seen corresponding path program 1 times [2020-10-23 18:22:55,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:22:55,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080516177] [2020-10-23 18:22:55,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:22:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:55,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:22:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:55,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:22:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:55,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:22:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:55,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:22:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:55,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:22:55,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080516177] [2020-10-23 18:22:55,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:22:55,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:22:55,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201229277] [2020-10-23 18:22:55,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:22:55,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:22:55,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:22:55,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:22:55,952 INFO L87 Difference]: Start difference. First operand 344 states and 464 transitions. Second operand 8 states. [2020-10-23 18:22:56,637 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:22:57,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:22:57,859 INFO L93 Difference]: Finished difference Result 397 states and 523 transitions. [2020-10-23 18:22:57,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:22:57,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2020-10-23 18:22:57,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:22:57,863 INFO L225 Difference]: With dead ends: 397 [2020-10-23 18:22:57,863 INFO L226 Difference]: Without dead ends: 327 [2020-10-23 18:22:57,864 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 [2020-10-23 18:22:57,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-23 18:22:57,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 305. [2020-10-23 18:22:57,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-23 18:22:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 407 transitions. [2020-10-23 18:22:57,912 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 407 transitions. Word has length 47 [2020-10-23 18:22:57,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:22:57,913 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 407 transitions. [2020-10-23 18:22:57,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:22:57,913 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 407 transitions. [2020-10-23 18:22:57,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-23 18:22:57,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:22:57,916 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] [2020-10-23 18:22:57,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 18:22:57,916 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:22:57,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:22:57,917 INFO L82 PathProgramCache]: Analyzing trace with hash -367748221, now seen corresponding path program 1 times [2020-10-23 18:22:57,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:22:57,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135418300] [2020-10-23 18:22:57,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:22:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:58,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:22:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:58,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:22:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:58,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:22:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:58,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-23 18:22:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:58,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-23 18:22:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:22:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:22:58,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135418300] [2020-10-23 18:22:58,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:22:58,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 18:22:58,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104770145] [2020-10-23 18:22:58,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 18:22:58,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:22:58,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 18:22:58,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:22:58,408 INFO L87 Difference]: Start difference. First operand 305 states and 407 transitions. Second operand 12 states. [2020-10-23 18:22:58,547 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:22:59,905 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-23 18:23:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:00,099 INFO L93 Difference]: Finished difference Result 337 states and 443 transitions. [2020-10-23 18:23:00,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 18:23:00,099 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-10-23 18:23:00,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:00,102 INFO L225 Difference]: With dead ends: 337 [2020-10-23 18:23:00,102 INFO L226 Difference]: Without dead ends: 327 [2020-10-23 18:23:00,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-23 18:23:00,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-23 18:23:00,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-10-23 18:23:00,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-23 18:23:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 426 transitions. [2020-10-23 18:23:00,137 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 426 transitions. Word has length 46 [2020-10-23 18:23:00,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:00,137 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 426 transitions. [2020-10-23 18:23:00,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 18:23:00,138 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 426 transitions. [2020-10-23 18:23:00,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-23 18:23:00,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:00,140 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] [2020-10-23 18:23:00,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 18:23:00,140 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:00,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1684096649, now seen corresponding path program 1 times [2020-10-23 18:23:00,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:00,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669573830] [2020-10-23 18:23:00,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:00,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:00,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:00,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-23 18:23:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:00,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-23 18:23:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:00,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669573830] [2020-10-23 18:23:00,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:00,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 18:23:00,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222486976] [2020-10-23 18:23:00,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 18:23:00,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:00,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 18:23:00,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:23:00,651 INFO L87 Difference]: Start difference. First operand 321 states and 426 transitions. Second operand 12 states. [2020-10-23 18:23:00,802 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:23:00,988 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:23:02,495 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-23 18:23:02,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:02,896 INFO L93 Difference]: Finished difference Result 333 states and 436 transitions. [2020-10-23 18:23:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 18:23:02,897 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2020-10-23 18:23:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:02,899 INFO L225 Difference]: With dead ends: 333 [2020-10-23 18:23:02,899 INFO L226 Difference]: Without dead ends: 327 [2020-10-23 18:23:02,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-23 18:23:02,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-23 18:23:02,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-10-23 18:23:02,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-23 18:23:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 425 transitions. [2020-10-23 18:23:02,957 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 425 transitions. Word has length 47 [2020-10-23 18:23:02,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:02,957 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 425 transitions. [2020-10-23 18:23:02,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 18:23:02,957 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 425 transitions. [2020-10-23 18:23:02,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-23 18:23:02,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:02,960 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] [2020-10-23 18:23:02,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 18:23:02,960 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:02,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:02,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1374313229, now seen corresponding path program 1 times [2020-10-23 18:23:02,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:02,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768428551] [2020-10-23 18:23:02,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:03,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:03,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:03,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:03,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-23 18:23:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:03,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-23 18:23:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:03,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:03,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768428551] [2020-10-23 18:23:03,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:03,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:23:03,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534489544] [2020-10-23 18:23:03,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:23:03,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:03,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:23:03,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:23:03,253 INFO L87 Difference]: Start difference. First operand 321 states and 425 transitions. Second operand 8 states. [2020-10-23 18:23:04,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:04,488 INFO L93 Difference]: Finished difference Result 340 states and 448 transitions. [2020-10-23 18:23:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:23:04,489 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-10-23 18:23:04,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:04,493 INFO L225 Difference]: With dead ends: 340 [2020-10-23 18:23:04,493 INFO L226 Difference]: Without dead ends: 273 [2020-10-23 18:23:04,494 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 [2020-10-23 18:23:04,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-10-23 18:23:04,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 243. [2020-10-23 18:23:04,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-23 18:23:04,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 322 transitions. [2020-10-23 18:23:04,521 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 322 transitions. Word has length 48 [2020-10-23 18:23:04,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:04,521 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 322 transitions. [2020-10-23 18:23:04,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:23:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 322 transitions. [2020-10-23 18:23:04,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-23 18:23:04,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:04,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:23:04,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 18:23:04,524 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:04,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:04,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1373415642, now seen corresponding path program 1 times [2020-10-23 18:23:04,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:04,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948193627] [2020-10-23 18:23:04,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:04,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:04,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:04,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:04,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-23 18:23:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:04,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:23:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:04,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-23 18:23:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:04,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948193627] [2020-10-23 18:23:04,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:04,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:23:04,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540993929] [2020-10-23 18:23:04,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:23:04,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:04,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:23:04,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:23:04,802 INFO L87 Difference]: Start difference. First operand 243 states and 322 transitions. Second operand 8 states. [2020-10-23 18:23:04,939 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-23 18:23:06,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:06,180 INFO L93 Difference]: Finished difference Result 272 states and 356 transitions. [2020-10-23 18:23:06,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 18:23:06,181 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-23 18:23:06,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:06,183 INFO L225 Difference]: With dead ends: 272 [2020-10-23 18:23:06,183 INFO L226 Difference]: Without dead ends: 241 [2020-10-23 18:23:06,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:23:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-23 18:23:06,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-10-23 18:23:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-23 18:23:06,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 318 transitions. [2020-10-23 18:23:06,219 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 318 transitions. Word has length 54 [2020-10-23 18:23:06,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:06,220 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 318 transitions. [2020-10-23 18:23:06,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:23:06,220 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 318 transitions. [2020-10-23 18:23:06,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-23 18:23:06,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:06,222 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] [2020-10-23 18:23:06,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 18:23:06,222 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:06,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:06,223 INFO L82 PathProgramCache]: Analyzing trace with hash 828283279, now seen corresponding path program 1 times [2020-10-23 18:23:06,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:06,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042198125] [2020-10-23 18:23:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:06,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:06,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:06,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:06,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:23:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:06,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:23:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:06,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042198125] [2020-10-23 18:23:06,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:06,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 18:23:06,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065089852] [2020-10-23 18:23:06,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:23:06,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:06,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:23:06,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:23:06,583 INFO L87 Difference]: Start difference. First operand 241 states and 318 transitions. Second operand 11 states. [2020-10-23 18:23:06,745 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 18:23:07,198 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-23 18:23:07,655 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-23 18:23:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:08,568 INFO L93 Difference]: Finished difference Result 287 states and 368 transitions. [2020-10-23 18:23:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 18:23:08,569 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2020-10-23 18:23:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:08,572 INFO L225 Difference]: With dead ends: 287 [2020-10-23 18:23:08,572 INFO L226 Difference]: Without dead ends: 245 [2020-10-23 18:23:08,573 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 [2020-10-23 18:23:08,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-10-23 18:23:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 241. [2020-10-23 18:23:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-23 18:23:08,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 316 transitions. [2020-10-23 18:23:08,600 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 316 transitions. Word has length 52 [2020-10-23 18:23:08,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:08,600 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 316 transitions. [2020-10-23 18:23:08,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:23:08,601 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 316 transitions. [2020-10-23 18:23:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-23 18:23:08,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:08,602 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] [2020-10-23 18:23:08,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 18:23:08,603 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:08,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2043240172, now seen corresponding path program 1 times [2020-10-23 18:23:08,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:08,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844241335] [2020-10-23 18:23:08,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:08,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:08,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:08,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:08,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:23:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:08,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:23:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:08,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844241335] [2020-10-23 18:23:08,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:08,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:23:08,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924335573] [2020-10-23 18:23:08,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:23:08,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:08,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:23:08,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:23:08,895 INFO L87 Difference]: Start difference. First operand 241 states and 316 transitions. Second operand 8 states. [2020-10-23 18:23:10,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:10,207 INFO L93 Difference]: Finished difference Result 271 states and 348 transitions. [2020-10-23 18:23:10,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:23:10,208 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-23 18:23:10,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:10,211 INFO L225 Difference]: With dead ends: 271 [2020-10-23 18:23:10,211 INFO L226 Difference]: Without dead ends: 251 [2020-10-23 18:23:10,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:23:10,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-23 18:23:10,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 244. [2020-10-23 18:23:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-23 18:23:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 320 transitions. [2020-10-23 18:23:10,252 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 320 transitions. Word has length 54 [2020-10-23 18:23:10,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:10,252 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 320 transitions. [2020-10-23 18:23:10,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:23:10,252 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 320 transitions. [2020-10-23 18:23:10,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-23 18:23:10,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:10,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:23:10,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-23 18:23:10,255 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:10,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:10,256 INFO L82 PathProgramCache]: Analyzing trace with hash 562783382, now seen corresponding path program 1 times [2020-10-23 18:23:10,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:10,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149827971] [2020-10-23 18:23:10,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:10,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:10,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:10,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:10,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:23:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:10,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:23:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:10,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149827971] [2020-10-23 18:23:10,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:10,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 18:23:10,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84244670] [2020-10-23 18:23:10,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:23:10,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:10,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:23:10,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:23:10,648 INFO L87 Difference]: Start difference. First operand 244 states and 320 transitions. Second operand 11 states. [2020-10-23 18:23:11,092 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-23 18:23:11,532 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:23:12,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:12,594 INFO L93 Difference]: Finished difference Result 294 states and 374 transitions. [2020-10-23 18:23:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:23:12,596 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2020-10-23 18:23:12,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:12,600 INFO L225 Difference]: With dead ends: 294 [2020-10-23 18:23:12,600 INFO L226 Difference]: Without dead ends: 287 [2020-10-23 18:23:12,601 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 [2020-10-23 18:23:12,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-23 18:23:12,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 278. [2020-10-23 18:23:12,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-23 18:23:12,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 359 transitions. [2020-10-23 18:23:12,633 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 359 transitions. Word has length 54 [2020-10-23 18:23:12,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:12,633 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 359 transitions. [2020-10-23 18:23:12,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:23:12,634 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 359 transitions. [2020-10-23 18:23:12,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-23 18:23:12,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:12,635 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] [2020-10-23 18:23:12,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-23 18:23:12,636 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:12,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:12,636 INFO L82 PathProgramCache]: Analyzing trace with hash 815292948, now seen corresponding path program 1 times [2020-10-23 18:23:12,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:12,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341414942] [2020-10-23 18:23:12,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:12,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:12,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:12,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:12,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:23:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:12,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:23:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:12,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:12,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341414942] [2020-10-23 18:23:12,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:12,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 18:23:12,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387251935] [2020-10-23 18:23:12,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 18:23:12,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:12,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 18:23:12,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:23:12,969 INFO L87 Difference]: Start difference. First operand 278 states and 359 transitions. Second operand 12 states. [2020-10-23 18:23:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:14,271 INFO L93 Difference]: Finished difference Result 296 states and 377 transitions. [2020-10-23 18:23:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:23:14,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-23 18:23:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:14,273 INFO L225 Difference]: With dead ends: 296 [2020-10-23 18:23:14,273 INFO L226 Difference]: Without dead ends: 239 [2020-10-23 18:23:14,274 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 [2020-10-23 18:23:14,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-23 18:23:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-10-23 18:23:14,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-23 18:23:14,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 309 transitions. [2020-10-23 18:23:14,308 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 309 transitions. Word has length 54 [2020-10-23 18:23:14,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:14,308 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 309 transitions. [2020-10-23 18:23:14,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 18:23:14,308 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 309 transitions. [2020-10-23 18:23:14,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-23 18:23:14,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:14,310 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] [2020-10-23 18:23:14,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-23 18:23:14,310 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:14,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:14,311 INFO L82 PathProgramCache]: Analyzing trace with hash 612867256, now seen corresponding path program 1 times [2020-10-23 18:23:14,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:14,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627180030] [2020-10-23 18:23:14,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:14,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:14,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:14,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:14,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:23:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:14,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 18:23:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:14,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:23:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:14,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:14,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627180030] [2020-10-23 18:23:14,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:14,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 18:23:14,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208605027] [2020-10-23 18:23:14,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:23:14,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:14,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:23:14,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:23:14,651 INFO L87 Difference]: Start difference. First operand 239 states and 309 transitions. Second operand 11 states. [2020-10-23 18:23:16,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:16,050 INFO L93 Difference]: Finished difference Result 337 states and 432 transitions. [2020-10-23 18:23:16,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 18:23:16,051 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 58 [2020-10-23 18:23:16,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:16,053 INFO L225 Difference]: With dead ends: 337 [2020-10-23 18:23:16,053 INFO L226 Difference]: Without dead ends: 276 [2020-10-23 18:23:16,055 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 [2020-10-23 18:23:16,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-23 18:23:16,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 254. [2020-10-23 18:23:16,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-23 18:23:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 328 transitions. [2020-10-23 18:23:16,093 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 328 transitions. Word has length 58 [2020-10-23 18:23:16,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:16,093 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 328 transitions. [2020-10-23 18:23:16,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:23:16,093 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 328 transitions. [2020-10-23 18:23:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-23 18:23:16,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:16,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:23:16,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-23 18:23:16,095 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:16,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:16,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1024006167, now seen corresponding path program 1 times [2020-10-23 18:23:16,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:16,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639144532] [2020-10-23 18:23:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:16,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:16,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:16,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:16,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:23:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:16,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 18:23:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:16,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:23:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:16,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639144532] [2020-10-23 18:23:16,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:16,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 18:23:16,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022163790] [2020-10-23 18:23:16,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:23:16,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:16,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:23:16,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:23:16,418 INFO L87 Difference]: Start difference. First operand 254 states and 328 transitions. Second operand 11 states. [2020-10-23 18:23:17,019 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:23:17,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:17,602 INFO L93 Difference]: Finished difference Result 297 states and 381 transitions. [2020-10-23 18:23:17,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:23:17,603 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 58 [2020-10-23 18:23:17,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:17,605 INFO L225 Difference]: With dead ends: 297 [2020-10-23 18:23:17,605 INFO L226 Difference]: Without dead ends: 260 [2020-10-23 18:23:17,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:23:17,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-23 18:23:17,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 248. [2020-10-23 18:23:17,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-10-23 18:23:17,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 319 transitions. [2020-10-23 18:23:17,647 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 319 transitions. Word has length 58 [2020-10-23 18:23:17,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:17,647 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 319 transitions. [2020-10-23 18:23:17,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:23:17,647 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 319 transitions. [2020-10-23 18:23:17,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-23 18:23:17,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:17,649 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] [2020-10-23 18:23:17,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-23 18:23:17,650 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:17,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:17,651 INFO L82 PathProgramCache]: Analyzing trace with hash 220832487, now seen corresponding path program 1 times [2020-10-23 18:23:17,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:17,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984381949] [2020-10-23 18:23:17,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:17,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:17,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:17,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:17,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:23:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:17,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:18,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984381949] [2020-10-23 18:23:18,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:18,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 18:23:18,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463246201] [2020-10-23 18:23:18,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:23:18,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:18,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:23:18,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:23:18,021 INFO L87 Difference]: Start difference. First operand 248 states and 319 transitions. Second operand 14 states. [2020-10-23 18:23:19,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:19,280 INFO L93 Difference]: Finished difference Result 274 states and 345 transitions. [2020-10-23 18:23:19,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 18:23:19,280 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-10-23 18:23:19,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:19,283 INFO L225 Difference]: With dead ends: 274 [2020-10-23 18:23:19,284 INFO L226 Difference]: Without dead ends: 242 [2020-10-23 18:23:19,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-23 18:23:19,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-23 18:23:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-23 18:23:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-23 18:23:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 310 transitions. [2020-10-23 18:23:19,312 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 310 transitions. Word has length 55 [2020-10-23 18:23:19,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:19,312 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 310 transitions. [2020-10-23 18:23:19,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:23:19,312 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 310 transitions. [2020-10-23 18:23:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-23 18:23:19,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:19,314 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] [2020-10-23 18:23:19,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-23 18:23:19,314 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:19,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:19,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1773056178, now seen corresponding path program 1 times [2020-10-23 18:23:19,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:19,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503001127] [2020-10-23 18:23:19,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:19,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:19,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:19,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:19,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-23 18:23:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:19,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-23 18:23:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:19,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:23:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:19,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503001127] [2020-10-23 18:23:19,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:19,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:23:19,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594777069] [2020-10-23 18:23:19,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:23:19,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:19,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:23:19,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:23:19,574 INFO L87 Difference]: Start difference. First operand 242 states and 310 transitions. Second operand 8 states. [2020-10-23 18:23:20,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:20,544 INFO L93 Difference]: Finished difference Result 301 states and 374 transitions. [2020-10-23 18:23:20,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:23:20,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-10-23 18:23:20,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:20,546 INFO L225 Difference]: With dead ends: 301 [2020-10-23 18:23:20,546 INFO L226 Difference]: Without dead ends: 241 [2020-10-23 18:23:20,547 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 [2020-10-23 18:23:20,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-23 18:23:20,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-10-23 18:23:20,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-23 18:23:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 305 transitions. [2020-10-23 18:23:20,573 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 305 transitions. Word has length 61 [2020-10-23 18:23:20,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:20,574 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 305 transitions. [2020-10-23 18:23:20,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:23:20,574 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 305 transitions. [2020-10-23 18:23:20,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-23 18:23:20,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:20,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:23:20,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-23 18:23:20,576 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:20,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:20,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1000780740, now seen corresponding path program 1 times [2020-10-23 18:23:20,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:20,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858539206] [2020-10-23 18:23:20,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:20,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:20,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:20,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:20,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-23 18:23:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:20,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:23:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:20,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:23:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:20,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:20,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858539206] [2020-10-23 18:23:20,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:20,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 18:23:20,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884458440] [2020-10-23 18:23:20,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 18:23:20,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:20,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 18:23:20,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:23:20,995 INFO L87 Difference]: Start difference. First operand 241 states and 305 transitions. Second operand 15 states. [2020-10-23 18:23:22,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:22,263 INFO L93 Difference]: Finished difference Result 259 states and 323 transitions. [2020-10-23 18:23:22,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:23:22,264 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2020-10-23 18:23:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:22,265 INFO L225 Difference]: With dead ends: 259 [2020-10-23 18:23:22,265 INFO L226 Difference]: Without dead ends: 211 [2020-10-23 18:23:22,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-23 18:23:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-23 18:23:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-10-23 18:23:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-23 18:23:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2020-10-23 18:23:22,290 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 62 [2020-10-23 18:23:22,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:22,290 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2020-10-23 18:23:22,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 18:23:22,290 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2020-10-23 18:23:22,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-23 18:23:22,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:22,292 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] [2020-10-23 18:23:22,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-23 18:23:22,292 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:22,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:22,292 INFO L82 PathProgramCache]: Analyzing trace with hash 383308959, now seen corresponding path program 1 times [2020-10-23 18:23:22,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:22,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127052745] [2020-10-23 18:23:22,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:22,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:22,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:22,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:22,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:23:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:22,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-23 18:23:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:22,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:23:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:22,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:22,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127052745] [2020-10-23 18:23:22,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:22,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 18:23:22,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926474943] [2020-10-23 18:23:22,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 18:23:22,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:22,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 18:23:22,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:23:22,675 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand 15 states. [2020-10-23 18:23:23,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:23,709 INFO L93 Difference]: Finished difference Result 229 states and 280 transitions. [2020-10-23 18:23:23,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:23:23,709 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2020-10-23 18:23:23,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:23,711 INFO L225 Difference]: With dead ends: 229 [2020-10-23 18:23:23,711 INFO L226 Difference]: Without dead ends: 208 [2020-10-23 18:23:23,712 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 [2020-10-23 18:23:23,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-23 18:23:23,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-10-23 18:23:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-23 18:23:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 256 transitions. [2020-10-23 18:23:23,735 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 256 transitions. Word has length 58 [2020-10-23 18:23:23,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:23,736 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 256 transitions. [2020-10-23 18:23:23,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 18:23:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 256 transitions. [2020-10-23 18:23:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-23 18:23:23,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:23,737 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] [2020-10-23 18:23:23,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-23 18:23:23,737 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:23,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:23,738 INFO L82 PathProgramCache]: Analyzing trace with hash 242517506, now seen corresponding path program 1 times [2020-10-23 18:23:23,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:23,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550348824] [2020-10-23 18:23:23,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:23,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:23,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:23,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 18:23:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:24,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-23 18:23:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:24,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:23:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:24,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550348824] [2020-10-23 18:23:24,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:24,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 18:23:24,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494271315] [2020-10-23 18:23:24,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 18:23:24,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:24,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 18:23:24,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:23:24,106 INFO L87 Difference]: Start difference. First operand 208 states and 256 transitions. Second operand 15 states. [2020-10-23 18:23:25,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:25,505 INFO L93 Difference]: Finished difference Result 226 states and 274 transitions. [2020-10-23 18:23:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:23:25,506 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2020-10-23 18:23:25,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:25,507 INFO L225 Difference]: With dead ends: 226 [2020-10-23 18:23:25,507 INFO L226 Difference]: Without dead ends: 182 [2020-10-23 18:23:25,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-23 18:23:25,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-23 18:23:25,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-23 18:23:25,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-23 18:23:25,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 224 transitions. [2020-10-23 18:23:25,529 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 224 transitions. Word has length 57 [2020-10-23 18:23:25,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:25,529 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 224 transitions. [2020-10-23 18:23:25,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 18:23:25,530 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 224 transitions. [2020-10-23 18:23:25,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-23 18:23:25,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:25,531 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] [2020-10-23 18:23:25,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-23 18:23:25,531 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:25,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:25,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1809471531, now seen corresponding path program 1 times [2020-10-23 18:23:25,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:25,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041249505] [2020-10-23 18:23:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:25,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:25,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:25,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:25,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:23:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:25,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 18:23:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:25,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:23:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:25,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041249505] [2020-10-23 18:23:25,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:25,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:23:25,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660487671] [2020-10-23 18:23:25,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:23:25,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:25,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:23:25,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:23:25,815 INFO L87 Difference]: Start difference. First operand 182 states and 224 transitions. Second operand 8 states. [2020-10-23 18:23:26,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:26,847 INFO L93 Difference]: Finished difference Result 356 states and 438 transitions. [2020-10-23 18:23:26,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:23:26,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-10-23 18:23:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:26,850 INFO L225 Difference]: With dead ends: 356 [2020-10-23 18:23:26,851 INFO L226 Difference]: Without dead ends: 348 [2020-10-23 18:23:26,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:23:26,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-23 18:23:26,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 318. [2020-10-23 18:23:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-23 18:23:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 399 transitions. [2020-10-23 18:23:26,885 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 399 transitions. Word has length 59 [2020-10-23 18:23:26,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:26,886 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 399 transitions. [2020-10-23 18:23:26,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:23:26,886 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 399 transitions. [2020-10-23 18:23:26,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-23 18:23:26,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:26,887 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] [2020-10-23 18:23:26,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-23 18:23:26,887 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:26,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:26,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1676149139, now seen corresponding path program 1 times [2020-10-23 18:23:26,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:26,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021989467] [2020-10-23 18:23:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:27,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:27,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:27,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:27,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:23:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:27,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 18:23:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:27,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:23:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:27,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:27,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021989467] [2020-10-23 18:23:27,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:27,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 18:23:27,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114533984] [2020-10-23 18:23:27,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:23:27,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:27,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:23:27,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:23:27,186 INFO L87 Difference]: Start difference. First operand 318 states and 399 transitions. Second operand 10 states. [2020-10-23 18:23:27,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:27,902 INFO L93 Difference]: Finished difference Result 383 states and 474 transitions. [2020-10-23 18:23:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:23:27,903 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2020-10-23 18:23:27,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:27,905 INFO L225 Difference]: With dead ends: 383 [2020-10-23 18:23:27,905 INFO L226 Difference]: Without dead ends: 306 [2020-10-23 18:23:27,906 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 [2020-10-23 18:23:27,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-23 18:23:27,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2020-10-23 18:23:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-10-23 18:23:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 381 transitions. [2020-10-23 18:23:27,942 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 381 transitions. Word has length 59 [2020-10-23 18:23:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:27,943 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 381 transitions. [2020-10-23 18:23:27,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:23:27,943 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 381 transitions. [2020-10-23 18:23:27,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-23 18:23:27,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:27,945 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, 1, 1] [2020-10-23 18:23:27,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-23 18:23:27,945 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:27,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:27,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1639264595, now seen corresponding path program 1 times [2020-10-23 18:23:27,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:27,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944797260] [2020-10-23 18:23:27,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:28,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:28,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:28,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:28,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:23:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:28,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:23:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:28,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:28,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944797260] [2020-10-23 18:23:28,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:28,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 18:23:28,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768404896] [2020-10-23 18:23:28,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 18:23:28,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:28,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 18:23:28,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:23:28,294 INFO L87 Difference]: Start difference. First operand 306 states and 381 transitions. Second operand 13 states. [2020-10-23 18:23:28,675 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:23:29,090 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-23 18:23:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:29,968 INFO L93 Difference]: Finished difference Result 399 states and 479 transitions. [2020-10-23 18:23:29,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:23:29,968 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2020-10-23 18:23:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:29,971 INFO L225 Difference]: With dead ends: 399 [2020-10-23 18:23:29,971 INFO L226 Difference]: Without dead ends: 363 [2020-10-23 18:23:29,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2020-10-23 18:23:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-10-23 18:23:30,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 320. [2020-10-23 18:23:30,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-23 18:23:30,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 395 transitions. [2020-10-23 18:23:30,014 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 395 transitions. Word has length 56 [2020-10-23 18:23:30,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:30,014 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 395 transitions. [2020-10-23 18:23:30,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 18:23:30,015 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 395 transitions. [2020-10-23 18:23:30,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-23 18:23:30,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:30,018 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] [2020-10-23 18:23:30,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-23 18:23:30,018 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:30,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:30,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1701410350, now seen corresponding path program 1 times [2020-10-23 18:23:30,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:30,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650404585] [2020-10-23 18:23:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:30,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:30,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:30,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:30,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:23:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:30,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:23:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:30,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:30,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650404585] [2020-10-23 18:23:30,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:30,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 18:23:30,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142292319] [2020-10-23 18:23:30,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:23:30,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:30,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:23:30,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:23:30,364 INFO L87 Difference]: Start difference. First operand 320 states and 395 transitions. Second operand 14 states. [2020-10-23 18:23:31,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:31,436 INFO L93 Difference]: Finished difference Result 352 states and 427 transitions. [2020-10-23 18:23:31,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:23:31,436 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-10-23 18:23:31,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:31,438 INFO L225 Difference]: With dead ends: 352 [2020-10-23 18:23:31,439 INFO L226 Difference]: Without dead ends: 252 [2020-10-23 18:23:31,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-23 18:23:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-23 18:23:31,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-23 18:23:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-23 18:23:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 281 transitions. [2020-10-23 18:23:31,469 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 281 transitions. Word has length 56 [2020-10-23 18:23:31,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:31,470 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 281 transitions. [2020-10-23 18:23:31,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:23:31,470 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 281 transitions. [2020-10-23 18:23:31,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-23 18:23:31,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:31,471 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] [2020-10-23 18:23:31,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-23 18:23:31,471 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:31,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:31,472 INFO L82 PathProgramCache]: Analyzing trace with hash -591053523, now seen corresponding path program 1 times [2020-10-23 18:23:31,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:31,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091961625] [2020-10-23 18:23:31,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:31,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:23:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:31,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:23:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:31,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:23:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:31,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:23:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:31,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:23:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:23:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:23:31,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091961625] [2020-10-23 18:23:31,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:23:31,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:23:31,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504228573] [2020-10-23 18:23:31,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:23:31,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:23:31,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:23:31,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:23:31,736 INFO L87 Difference]: Start difference. First operand 252 states and 281 transitions. Second operand 8 states. [2020-10-23 18:23:32,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:23:32,315 INFO L93 Difference]: Finished difference Result 364 states and 412 transitions. [2020-10-23 18:23:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:23:32,315 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-10-23 18:23:32,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:23:32,317 INFO L225 Difference]: With dead ends: 364 [2020-10-23 18:23:32,317 INFO L226 Difference]: Without dead ends: 290 [2020-10-23 18:23:32,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:23:32,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-23 18:23:32,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 264. [2020-10-23 18:23:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-23 18:23:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 297 transitions. [2020-10-23 18:23:32,348 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 297 transitions. Word has length 57 [2020-10-23 18:23:32,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:23:32,348 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 297 transitions. [2020-10-23 18:23:32,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:23:32,348 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 297 transitions. [2020-10-23 18:23:32,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-23 18:23:32,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:23:32,349 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] [2020-10-23 18:23:32,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-23 18:23:32,350 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:23:32,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:23:32,350 INFO L82 PathProgramCache]: Analyzing trace with hash 2124127277, now seen corresponding path program 1 times [2020-10-23 18:23:32,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:23:32,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129241677] [2020-10-23 18:23:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:23:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:23:32,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:23:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:23:32,391 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:23:32,447 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:23:32,447 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:23:32,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-23 18:23:32,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:23:32 BoogieIcfgContainer [2020-10-23 18:23:32,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:23:32,579 INFO L168 Benchmark]: Toolchain (without parser) took 47225.42 ms. Allocated memory was 153.1 MB in the beginning and 385.9 MB in the end (delta: 232.8 MB). Free memory was 127.5 MB in the beginning and 324.6 MB in the end (delta: -197.1 MB). Peak memory consumption was 37.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:23:32,580 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 125.8 MB. Free memory is still 94.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:23:32,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.33 ms. Allocated memory is still 153.1 MB. Free memory was 126.8 MB in the beginning and 107.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:23:32,581 INFO L168 Benchmark]: Boogie Preprocessor took 139.84 ms. Allocated memory is still 153.1 MB. Free memory was 107.5 MB in the beginning and 104.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:23:32,581 INFO L168 Benchmark]: RCFGBuilder took 1300.84 ms. Allocated memory is still 153.1 MB. Free memory was 104.5 MB in the beginning and 113.8 MB in the end (delta: -9.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 8.0 GB. [2020-10-23 18:23:32,582 INFO L168 Benchmark]: TraceAbstraction took 45117.05 ms. Allocated memory was 153.1 MB in the beginning and 385.9 MB in the end (delta: 232.8 MB). Free memory was 113.8 MB in the beginning and 324.6 MB in the end (delta: -210.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:23:32,584 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 125.8 MB. Free memory is still 94.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 654.33 ms. Allocated memory is still 153.1 MB. Free memory was 126.8 MB in the beginning and 107.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 139.84 ms. Allocated memory is still 153.1 MB. Free memory was 107.5 MB in the beginning and 104.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1300.84 ms. Allocated memory is still 153.1 MB. Free memory was 104.5 MB in the beginning and 113.8 MB in the end (delta: -9.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 45117.05 ms. Allocated memory was 153.1 MB in the beginning and 385.9 MB in the end (delta: 232.8 MB). Free memory was 113.8 MB in the beginning and 324.6 MB in the end (delta: -210.7 MB). Peak memory consumption was 22.1 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: 44.9s, OverallIterations: 26, TraceHistogramMax: 1, AutomataDifference: 34.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5538 SDtfs, 8266 SDslu, 8526 SDs, 0 SdLazy, 18776 SolverSat, 1743 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 510 GetRequests, 221 SyntacticMatches, 1 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 11.3s 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, 7.8s 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...