/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -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 0.2.2-dev-b030c9e [2022-03-20 02:29:45,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:29:45,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:29:45,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:29:45,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:29:45,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:29:45,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:29:45,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:29:45,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:29:45,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:29:45,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:29:45,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:29:45,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:29:45,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:29:45,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:29:45,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:29:45,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:29:45,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:29:45,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:29:45,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:29:45,073 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:29:45,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:29:45,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:29:45,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:29:45,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:29:45,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 02:29:45,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 02:29:45,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 02:29:45,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 02:29:45,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 02:29:45,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-20 02:29:45,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:29:45,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:29:45,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:29:45,103 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 [2022-03-20 02:29:45,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:29:45,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:29:45,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:29:45,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:29:45,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:29:45,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:29:45,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:29:45,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:29:45,138 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:29:45,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:29:45,139 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:29:45,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:29:45,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:29:45,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:29:45,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:29:45,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:29:45,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:29:45,140 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:29:45,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:29:45,140 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:29:45,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:29:45,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:29:45,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:29:45,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:29:45,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:29:45,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:29:45,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:29:45,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:29:45,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:29:45,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:29:45,142 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:29:45,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:29:45,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:29:45,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:29:45,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:29:45,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:29:45,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:29:45,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:29:45,370 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:29:45,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2022-03-20 02:29:45,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68e92877/924380e9a9044ddd8bb8558ac1fe1431/FLAGa3a9501f4 [2022-03-20 02:29:45,808 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:29:45,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2022-03-20 02:29:45,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68e92877/924380e9a9044ddd8bb8558ac1fe1431/FLAGa3a9501f4 [2022-03-20 02:29:46,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68e92877/924380e9a9044ddd8bb8558ac1fe1431 [2022-03-20 02:29:46,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:29:46,181 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:29:46,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:29:46,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:29:46,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:29:46,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9a44df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46, skipping insertion in model container [2022-03-20 02:29:46,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:29:46,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:29:46,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2022-03-20 02:29:46,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:29:46,423 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:29:46,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2022-03-20 02:29:46,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:29:46,514 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:29:46,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46 WrapperNode [2022-03-20 02:29:46,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:29:46,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:29:46,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:29:46,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:29:46,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:29:46,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:29:46,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:29:46,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:29:46,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46" (1/1) ... [2022-03-20 02:29:46,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:29:46,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:29:46,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 02:29:46,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 02:29:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:29:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:29:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:29:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2022-03-20 02:29:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2022-03-20 02:29:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2022-03-20 02:29:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2022-03-20 02:29:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2022-03-20 02:29:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-03-20 02:29:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:29:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:29:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:29:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:29:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:29:46,860 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:29:46,861 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:29:46,944 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:29:47,010 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-03-20 02:29:47,010 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-03-20 02:29:47,013 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:29:47,036 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-03-20 02:29:47,037 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-03-20 02:29:47,100 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:29:47,110 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-03-20 02:29:47,110 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-03-20 02:29:47,115 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:29:47,176 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2022-03-20 02:29:47,176 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2022-03-20 02:29:47,194 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:29:47,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-03-20 02:29:47,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-03-20 02:29:47,221 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:29:47,238 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-03-20 02:29:47,239 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-03-20 02:29:47,262 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:29:47,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:29:47,269 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-20 02:29:47,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:29:47 BoogieIcfgContainer [2022-03-20 02:29:47,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:29:47,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:29:47,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:29:47,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:29:47,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:29:46" (1/3) ... [2022-03-20 02:29:47,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cfa989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:29:47, skipping insertion in model container [2022-03-20 02:29:47,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:29:46" (2/3) ... [2022-03-20 02:29:47,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cfa989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:29:47, skipping insertion in model container [2022-03-20 02:29:47,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:29:47" (3/3) ... [2022-03-20 02:29:47,281 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2022-03-20 02:29:47,298 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:29:47,298 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:29:47,337 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:29:47,341 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 02:29:47,341 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:29:47,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 182 states have (on average 1.5604395604395604) internal successors, (284), 200 states have internal predecessors, (284), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2022-03-20 02:29:47,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-20 02:29:47,366 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:47,366 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:47,367 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:47,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:47,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1235546278, now seen corresponding path program 1 times [2022-03-20 02:29:47,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:47,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943727647] [2022-03-20 02:29:47,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:47,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:47,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:47,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:47,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:47,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:47,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943727647] [2022-03-20 02:29:47,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943727647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:47,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:47,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:29:47,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265890561] [2022-03-20 02:29:47,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:47,752 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:29:47,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:47,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:29:47,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:29:47,779 INFO L87 Difference]: Start difference. First operand has 240 states, 182 states have (on average 1.5604395604395604) internal successors, (284), 200 states have internal predecessors, (284), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 02:29:48,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:48,306 INFO L93 Difference]: Finished difference Result 417 states and 628 transitions. [2022-03-20 02:29:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:29:48,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-03-20 02:29:48,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:48,315 INFO L225 Difference]: With dead ends: 417 [2022-03-20 02:29:48,316 INFO L226 Difference]: Without dead ends: 259 [2022-03-20 02:29:48,319 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:29:48,321 INFO L913 BasicCegarLoop]: 297 mSDtfsCounter, 328 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:48,322 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 444 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 02:29:48,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-20 02:29:48,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 231. [2022-03-20 02:29:48,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.4943181818181819) internal successors, (263), 192 states have internal predecessors, (263), 39 states have call successors, (39), 17 states have call predecessors, (39), 15 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-03-20 02:29:48,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2022-03-20 02:29:48,365 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2022-03-20 02:29:48,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:48,365 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2022-03-20 02:29:48,366 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 02:29:48,366 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2022-03-20 02:29:48,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-20 02:29:48,366 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:48,367 INFO L499 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] [2022-03-20 02:29:48,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:29:48,367 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:48,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:48,367 INFO L85 PathProgramCache]: Analyzing trace with hash -225403307, now seen corresponding path program 1 times [2022-03-20 02:29:48,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:48,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886547884] [2022-03-20 02:29:48,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:48,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:48,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:48,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886547884] [2022-03-20 02:29:48,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886547884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:48,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:48,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:29:48,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454153014] [2022-03-20 02:29:48,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:48,509 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:29:48,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:48,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:29:48,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:29:48,509 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:29:49,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:49,070 INFO L93 Difference]: Finished difference Result 410 states and 565 transitions. [2022-03-20 02:29:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:29:49,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-03-20 02:29:49,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:49,073 INFO L225 Difference]: With dead ends: 410 [2022-03-20 02:29:49,073 INFO L226 Difference]: Without dead ends: 349 [2022-03-20 02:29:49,074 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:29:49,075 INFO L913 BasicCegarLoop]: 357 mSDtfsCounter, 535 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:49,075 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 497 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-20 02:29:49,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-03-20 02:29:49,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 304. [2022-03-20 02:29:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 239 states have (on average 1.393305439330544) internal successors, (333), 243 states have internal predecessors, (333), 38 states have call successors, (38), 23 states have call predecessors, (38), 26 states have return successors, (44), 40 states have call predecessors, (44), 29 states have call successors, (44) [2022-03-20 02:29:49,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 415 transitions. [2022-03-20 02:29:49,097 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 415 transitions. Word has length 28 [2022-03-20 02:29:49,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:49,098 INFO L478 AbstractCegarLoop]: Abstraction has 304 states and 415 transitions. [2022-03-20 02:29:49,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:29:49,098 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 415 transitions. [2022-03-20 02:29:49,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-20 02:29:49,099 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:49,099 INFO L499 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] [2022-03-20 02:29:49,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:29:49,099 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:49,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:49,100 INFO L85 PathProgramCache]: Analyzing trace with hash -809602478, now seen corresponding path program 1 times [2022-03-20 02:29:49,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:49,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014121234] [2022-03-20 02:29:49,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:49,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:49,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:49,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:49,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:49,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014121234] [2022-03-20 02:29:49,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014121234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:49,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:49,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:29:49,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300079808] [2022-03-20 02:29:49,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:49,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:29:49,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:49,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:29:49,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:29:49,222 INFO L87 Difference]: Start difference. First operand 304 states and 415 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:29:49,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:49,581 INFO L93 Difference]: Finished difference Result 487 states and 647 transitions. [2022-03-20 02:29:49,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:29:49,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-03-20 02:29:49,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:49,586 INFO L225 Difference]: With dead ends: 487 [2022-03-20 02:29:49,587 INFO L226 Difference]: Without dead ends: 368 [2022-03-20 02:29:49,588 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:29:49,589 INFO L913 BasicCegarLoop]: 267 mSDtfsCounter, 574 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:49,589 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 365 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 02:29:49,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-03-20 02:29:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 344. [2022-03-20 02:29:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 280 states have (on average 1.3857142857142857) internal successors, (388), 282 states have internal predecessors, (388), 34 states have call successors, (34), 23 states have call predecessors, (34), 29 states have return successors, (44), 39 states have call predecessors, (44), 27 states have call successors, (44) [2022-03-20 02:29:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 466 transitions. [2022-03-20 02:29:49,614 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 466 transitions. Word has length 28 [2022-03-20 02:29:49,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:49,615 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 466 transitions. [2022-03-20 02:29:49,615 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:29:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 466 transitions. [2022-03-20 02:29:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-03-20 02:29:49,616 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:49,616 INFO L499 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] [2022-03-20 02:29:49,616 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:29:49,617 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:49,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:49,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1415760533, now seen corresponding path program 1 times [2022-03-20 02:29:49,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:49,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558494293] [2022-03-20 02:29:49,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:49,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:49,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:49,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:49,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:49,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:49,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558494293] [2022-03-20 02:29:49,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558494293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:49,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:49,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:29:49,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477560727] [2022-03-20 02:29:49,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:49,743 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:29:49,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:49,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:29:49,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:29:49,744 INFO L87 Difference]: Start difference. First operand 344 states and 466 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:29:50,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:50,137 INFO L93 Difference]: Finished difference Result 347 states and 468 transitions. [2022-03-20 02:29:50,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:29:50,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-03-20 02:29:50,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:50,139 INFO L225 Difference]: With dead ends: 347 [2022-03-20 02:29:50,139 INFO L226 Difference]: Without dead ends: 343 [2022-03-20 02:29:50,140 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:29:50,140 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 343 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:50,141 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 392 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 02:29:50,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-03-20 02:29:50,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2022-03-20 02:29:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 280 states have (on average 1.3785714285714286) internal successors, (386), 281 states have internal predecessors, (386), 33 states have call successors, (33), 23 states have call predecessors, (33), 29 states have return successors, (44), 39 states have call predecessors, (44), 27 states have call successors, (44) [2022-03-20 02:29:50,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 463 transitions. [2022-03-20 02:29:50,171 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 463 transitions. Word has length 38 [2022-03-20 02:29:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:50,172 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 463 transitions. [2022-03-20 02:29:50,172 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:29:50,172 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 463 transitions. [2022-03-20 02:29:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-20 02:29:50,189 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:50,189 INFO L499 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] [2022-03-20 02:29:50,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:29:50,189 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:50,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash 605107567, now seen corresponding path program 1 times [2022-03-20 02:29:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:50,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276663067] [2022-03-20 02:29:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:50,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:50,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-03-20 02:29:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:50,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:50,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276663067] [2022-03-20 02:29:50,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276663067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:50,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:50,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:29:50,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804872820] [2022-03-20 02:29:50,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:50,325 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:29:50,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:50,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:29:50,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:29:50,325 INFO L87 Difference]: Start difference. First operand 343 states and 463 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-20 02:29:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:50,806 INFO L93 Difference]: Finished difference Result 394 states and 520 transitions. [2022-03-20 02:29:50,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 02:29:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-03-20 02:29:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:50,808 INFO L225 Difference]: With dead ends: 394 [2022-03-20 02:29:50,808 INFO L226 Difference]: Without dead ends: 325 [2022-03-20 02:29:50,809 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:29:50,810 INFO L913 BasicCegarLoop]: 306 mSDtfsCounter, 605 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:50,810 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 534 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 02:29:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-20 02:29:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 304. [2022-03-20 02:29:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 246 states have (on average 1.3699186991869918) internal successors, (337), 247 states have internal predecessors, (337), 30 states have call successors, (30), 21 states have call predecessors, (30), 27 states have return successors, (39), 36 states have call predecessors, (39), 24 states have call successors, (39) [2022-03-20 02:29:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 406 transitions. [2022-03-20 02:29:50,824 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 406 transitions. Word has length 46 [2022-03-20 02:29:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:50,824 INFO L478 AbstractCegarLoop]: Abstraction has 304 states and 406 transitions. [2022-03-20 02:29:50,825 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-20 02:29:50,825 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 406 transitions. [2022-03-20 02:29:50,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 02:29:50,826 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:50,826 INFO L499 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] [2022-03-20 02:29:50,826 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:29:50,826 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:50,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:50,827 INFO L85 PathProgramCache]: Analyzing trace with hash -447308474, now seen corresponding path program 1 times [2022-03-20 02:29:50,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:50,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546691764] [2022-03-20 02:29:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:50,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:50,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:29:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:29:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:51,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:51,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546691764] [2022-03-20 02:29:51,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546691764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:51,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:51,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:29:51,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226353428] [2022-03-20 02:29:51,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:51,084 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:29:51,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:51,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:29:51,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:29:51,085 INFO L87 Difference]: Start difference. First operand 304 states and 406 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:29:51,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:51,717 INFO L93 Difference]: Finished difference Result 334 states and 440 transitions. [2022-03-20 02:29:51,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:29:51,717 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2022-03-20 02:29:51,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:51,719 INFO L225 Difference]: With dead ends: 334 [2022-03-20 02:29:51,719 INFO L226 Difference]: Without dead ends: 325 [2022-03-20 02:29:51,719 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:29:51,720 INFO L913 BasicCegarLoop]: 255 mSDtfsCounter, 662 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:51,720 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 494 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 02:29:51,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-20 02:29:51,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2022-03-20 02:29:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 260 states have (on average 1.3615384615384616) internal successors, (354), 260 states have internal predecessors, (354), 30 states have call successors, (30), 21 states have call predecessors, (30), 29 states have return successors, (41), 38 states have call predecessors, (41), 24 states have call successors, (41) [2022-03-20 02:29:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 425 transitions. [2022-03-20 02:29:51,737 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 425 transitions. Word has length 45 [2022-03-20 02:29:51,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:51,737 INFO L478 AbstractCegarLoop]: Abstraction has 320 states and 425 transitions. [2022-03-20 02:29:51,738 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:29:51,738 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 425 transitions. [2022-03-20 02:29:51,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-20 02:29:51,739 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:51,739 INFO L499 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] [2022-03-20 02:29:51,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:29:51,739 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:51,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:51,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1360970565, now seen corresponding path program 1 times [2022-03-20 02:29:51,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:51,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745468257] [2022-03-20 02:29:51,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:51,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:29:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:29:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:51,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:51,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:51,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745468257] [2022-03-20 02:29:51,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745468257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:51,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:51,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:29:51,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408775691] [2022-03-20 02:29:51,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:51,958 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:29:51,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:51,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:29:51,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:29:51,959 INFO L87 Difference]: Start difference. First operand 320 states and 425 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:29:52,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:52,631 INFO L93 Difference]: Finished difference Result 330 states and 433 transitions. [2022-03-20 02:29:52,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:29:52,631 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2022-03-20 02:29:52,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:52,633 INFO L225 Difference]: With dead ends: 330 [2022-03-20 02:29:52,633 INFO L226 Difference]: Without dead ends: 325 [2022-03-20 02:29:52,633 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:29:52,634 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 1070 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:52,634 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 508 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 02:29:52,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-20 02:29:52,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2022-03-20 02:29:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 260 states have (on average 1.3576923076923078) internal successors, (353), 260 states have internal predecessors, (353), 30 states have call successors, (30), 21 states have call predecessors, (30), 29 states have return successors, (41), 38 states have call predecessors, (41), 24 states have call successors, (41) [2022-03-20 02:29:52,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 424 transitions. [2022-03-20 02:29:52,664 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 424 transitions. Word has length 46 [2022-03-20 02:29:52,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:52,665 INFO L478 AbstractCegarLoop]: Abstraction has 320 states and 424 transitions. [2022-03-20 02:29:52,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:29:52,665 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 424 transitions. [2022-03-20 02:29:52,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-20 02:29:52,667 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:52,667 INFO L499 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] [2022-03-20 02:29:52,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:29:52,667 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:52,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:52,668 INFO L85 PathProgramCache]: Analyzing trace with hash 548356508, now seen corresponding path program 1 times [2022-03-20 02:29:52,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:52,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788975415] [2022-03-20 02:29:52,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:52,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:52,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:29:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:52,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:29:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:52,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:52,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788975415] [2022-03-20 02:29:52,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788975415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:52,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:52,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:29:52,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491662891] [2022-03-20 02:29:52,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:52,788 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:29:52,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:52,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:29:52,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:29:52,788 INFO L87 Difference]: Start difference. First operand 320 states and 424 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:29:53,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:53,089 INFO L93 Difference]: Finished difference Result 338 states and 446 transitions. [2022-03-20 02:29:53,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:29:53,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2022-03-20 02:29:53,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:53,091 INFO L225 Difference]: With dead ends: 338 [2022-03-20 02:29:53,091 INFO L226 Difference]: Without dead ends: 272 [2022-03-20 02:29:53,091 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:29:53,092 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 726 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:53,092 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 407 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 02:29:53,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-03-20 02:29:53,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 242. [2022-03-20 02:29:53,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 198 states have (on average 1.378787878787879) internal successors, (273), 201 states have internal predecessors, (273), 27 states have call successors, (27), 19 states have call predecessors, (27), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2022-03-20 02:29:53,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2022-03-20 02:29:53,106 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 47 [2022-03-20 02:29:53,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:53,106 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2022-03-20 02:29:53,106 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:29:53,106 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2022-03-20 02:29:53,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 02:29:53,107 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:53,107 INFO L499 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] [2022-03-20 02:29:53,107 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:29:53,107 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:53,108 INFO L85 PathProgramCache]: Analyzing trace with hash 916659597, now seen corresponding path program 1 times [2022-03-20 02:29:53,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:53,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876097187] [2022-03-20 02:29:53,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:53,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-03-20 02:29:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:29:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-03-20 02:29:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:53,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:53,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876097187] [2022-03-20 02:29:53,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876097187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:53,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:53,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:29:53,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62185593] [2022-03-20 02:29:53,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:53,228 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:29:53,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:53,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:29:53,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:29:53,229 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:29:53,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:53,595 INFO L93 Difference]: Finished difference Result 270 states and 354 transitions. [2022-03-20 02:29:53,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:29:53,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 53 [2022-03-20 02:29:53,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:53,597 INFO L225 Difference]: With dead ends: 270 [2022-03-20 02:29:53,597 INFO L226 Difference]: Without dead ends: 240 [2022-03-20 02:29:53,598 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:29:53,598 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 629 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:53,598 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 461 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 02:29:53,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-03-20 02:29:53,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2022-03-20 02:29:53,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3705583756345177) internal successors, (270), 199 states have internal predecessors, (270), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2022-03-20 02:29:53,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2022-03-20 02:29:53,614 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2022-03-20 02:29:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:53,614 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2022-03-20 02:29:53,614 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:29:53,615 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2022-03-20 02:29:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 02:29:53,615 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:53,615 INFO L499 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] [2022-03-20 02:29:53,616 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:29:53,616 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1556296422, now seen corresponding path program 1 times [2022-03-20 02:29:53,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:53,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288054969] [2022-03-20 02:29:53,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:53,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-20 02:29:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:53,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:53,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:53,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288054969] [2022-03-20 02:29:53,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288054969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:53,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:53,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-20 02:29:53,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804285112] [2022-03-20 02:29:53,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:53,749 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 02:29:53,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:53,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 02:29:53,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:29:53,750 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-20 02:29:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:54,435 INFO L93 Difference]: Finished difference Result 284 states and 365 transitions. [2022-03-20 02:29:54,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-20 02:29:54,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 51 [2022-03-20 02:29:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:54,437 INFO L225 Difference]: With dead ends: 284 [2022-03-20 02:29:54,437 INFO L226 Difference]: Without dead ends: 243 [2022-03-20 02:29:54,437 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:29:54,438 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 799 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:54,438 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 593 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 02:29:54,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-03-20 02:29:54,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2022-03-20 02:29:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3604060913705585) internal successors, (268), 199 states have internal predecessors, (268), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2022-03-20 02:29:54,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 315 transitions. [2022-03-20 02:29:54,450 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 315 transitions. Word has length 51 [2022-03-20 02:29:54,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:54,450 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 315 transitions. [2022-03-20 02:29:54,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-20 02:29:54,450 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 315 transitions. [2022-03-20 02:29:54,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 02:29:54,451 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:54,451 INFO L499 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] [2022-03-20 02:29:54,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:29:54,452 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:54,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:54,452 INFO L85 PathProgramCache]: Analyzing trace with hash 460482069, now seen corresponding path program 1 times [2022-03-20 02:29:54,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:54,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90245150] [2022-03-20 02:29:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:54,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:54,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:54,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-20 02:29:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:54,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:54,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:54,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90245150] [2022-03-20 02:29:54,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90245150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:54,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:54,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 02:29:54,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850872987] [2022-03-20 02:29:54,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:54,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 02:29:54,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:54,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 02:29:54,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:29:54,627 INFO L87 Difference]: Start difference. First operand 240 states and 315 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:29:55,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:55,304 INFO L93 Difference]: Finished difference Result 272 states and 349 transitions. [2022-03-20 02:29:55,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:29:55,305 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2022-03-20 02:29:55,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:55,306 INFO L225 Difference]: With dead ends: 272 [2022-03-20 02:29:55,306 INFO L226 Difference]: Without dead ends: 253 [2022-03-20 02:29:55,306 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-03-20 02:29:55,307 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 427 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:55,307 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 588 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-20 02:29:55,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-03-20 02:29:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 243. [2022-03-20 02:29:55,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 200 states have (on average 1.36) internal successors, (272), 202 states have internal predecessors, (272), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2022-03-20 02:29:55,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 319 transitions. [2022-03-20 02:29:55,322 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 319 transitions. Word has length 53 [2022-03-20 02:29:55,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:55,322 INFO L478 AbstractCegarLoop]: Abstraction has 243 states and 319 transitions. [2022-03-20 02:29:55,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:29:55,322 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 319 transitions. [2022-03-20 02:29:55,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 02:29:55,323 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:55,323 INFO L499 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] [2022-03-20 02:29:55,323 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:29:55,324 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:55,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1533662637, now seen corresponding path program 1 times [2022-03-20 02:29:55,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:55,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14650433] [2022-03-20 02:29:55,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:55,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:55,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:55,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:55,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:55,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-20 02:29:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:55,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:55,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14650433] [2022-03-20 02:29:55,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14650433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:55,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:55,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:29:55,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458093121] [2022-03-20 02:29:55,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:55,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:29:55,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:55,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:29:55,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:29:55,483 INFO L87 Difference]: Start difference. First operand 243 states and 319 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-20 02:29:56,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:56,081 INFO L93 Difference]: Finished difference Result 284 states and 365 transitions. [2022-03-20 02:29:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:29:56,081 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 53 [2022-03-20 02:29:56,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:56,082 INFO L225 Difference]: With dead ends: 284 [2022-03-20 02:29:56,082 INFO L226 Difference]: Without dead ends: 240 [2022-03-20 02:29:56,083 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2022-03-20 02:29:56,083 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 964 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:56,083 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 583 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 02:29:56,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-03-20 02:29:56,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2022-03-20 02:29:56,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 195 states have (on average 1.3435897435897435) internal successors, (262), 197 states have internal predecessors, (262), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2022-03-20 02:29:56,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 309 transitions. [2022-03-20 02:29:56,095 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 309 transitions. Word has length 53 [2022-03-20 02:29:56,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:56,096 INFO L478 AbstractCegarLoop]: Abstraction has 238 states and 309 transitions. [2022-03-20 02:29:56,096 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-20 02:29:56,096 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 309 transitions. [2022-03-20 02:29:56,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 02:29:56,096 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:56,097 INFO L499 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] [2022-03-20 02:29:56,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:29:56,097 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:56,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1386969835, now seen corresponding path program 1 times [2022-03-20 02:29:56,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:56,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631483762] [2022-03-20 02:29:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:56,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-20 02:29:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:56,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:56,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631483762] [2022-03-20 02:29:56,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631483762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:56,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:56,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:29:56,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711496066] [2022-03-20 02:29:56,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:56,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:29:56,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:56,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:29:56,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:29:56,221 INFO L87 Difference]: Start difference. First operand 238 states and 309 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:29:56,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:56,616 INFO L93 Difference]: Finished difference Result 250 states and 321 transitions. [2022-03-20 02:29:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-20 02:29:56,616 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2022-03-20 02:29:56,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:56,617 INFO L225 Difference]: With dead ends: 250 [2022-03-20 02:29:56,617 INFO L226 Difference]: Without dead ends: 210 [2022-03-20 02:29:56,618 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:29:56,618 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 290 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:56,618 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 904 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 02:29:56,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-20 02:29:56,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-03-20 02:29:56,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 171 states have (on average 1.345029239766082) internal successors, (230), 173 states have internal predecessors, (230), 24 states have call successors, (24), 17 states have call predecessors, (24), 14 states have return successors, (19), 19 states have call predecessors, (19), 18 states have call successors, (19) [2022-03-20 02:29:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 273 transitions. [2022-03-20 02:29:56,628 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 273 transitions. Word has length 53 [2022-03-20 02:29:56,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:56,628 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 273 transitions. [2022-03-20 02:29:56,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:29:56,628 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 273 transitions. [2022-03-20 02:29:56,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-20 02:29:56,629 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:56,629 INFO L499 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] [2022-03-20 02:29:56,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:29:56,629 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:56,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:56,629 INFO L85 PathProgramCache]: Analyzing trace with hash -438914869, now seen corresponding path program 1 times [2022-03-20 02:29:56,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:56,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964345884] [2022-03-20 02:29:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:56,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:29:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:56,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:56,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964345884] [2022-03-20 02:29:56,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964345884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:56,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:56,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-20 02:29:56,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33029275] [2022-03-20 02:29:56,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:56,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-20 02:29:56,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:56,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-20 02:29:56,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-03-20 02:29:56,752 INFO L87 Difference]: Start difference. First operand 210 states and 273 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:29:57,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:57,092 INFO L93 Difference]: Finished difference Result 226 states and 289 transitions. [2022-03-20 02:29:57,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:29:57,092 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-03-20 02:29:57,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:57,093 INFO L225 Difference]: With dead ends: 226 [2022-03-20 02:29:57,093 INFO L226 Difference]: Without dead ends: 205 [2022-03-20 02:29:57,094 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:29:57,094 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 367 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:57,094 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 817 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 02:29:57,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-03-20 02:29:57,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-03-20 02:29:57,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 167 states have (on average 1.347305389221557) internal successors, (225), 169 states have internal predecessors, (225), 23 states have call successors, (23), 17 states have call predecessors, (23), 14 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2022-03-20 02:29:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 266 transitions. [2022-03-20 02:29:57,107 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 266 transitions. Word has length 54 [2022-03-20 02:29:57,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:57,107 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 266 transitions. [2022-03-20 02:29:57,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:29:57,108 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 266 transitions. [2022-03-20 02:29:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-03-20 02:29:57,110 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:57,110 INFO L499 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] [2022-03-20 02:29:57,110 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:29:57,110 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:57,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:57,110 INFO L85 PathProgramCache]: Analyzing trace with hash 432963036, now seen corresponding path program 1 times [2022-03-20 02:29:57,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:57,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525451236] [2022-03-20 02:29:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:57,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-03-20 02:29:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:29:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:57,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:57,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525451236] [2022-03-20 02:29:57,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525451236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:57,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:57,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-20 02:29:57,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587051610] [2022-03-20 02:29:57,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:57,251 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 02:29:57,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:57,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 02:29:57,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:29:57,252 INFO L87 Difference]: Start difference. First operand 205 states and 266 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:29:57,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:57,676 INFO L93 Difference]: Finished difference Result 263 states and 337 transitions. [2022-03-20 02:29:57,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-20 02:29:57,677 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2022-03-20 02:29:57,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:57,678 INFO L225 Difference]: With dead ends: 263 [2022-03-20 02:29:57,678 INFO L226 Difference]: Without dead ends: 222 [2022-03-20 02:29:57,678 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:29:57,679 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 394 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:57,679 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 650 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 02:29:57,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-20 02:29:57,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 210. [2022-03-20 02:29:57,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 171 states have (on average 1.3391812865497077) internal successors, (229), 173 states have internal predecessors, (229), 23 states have call successors, (23), 17 states have call predecessors, (23), 15 states have return successors, (19), 19 states have call predecessors, (19), 17 states have call successors, (19) [2022-03-20 02:29:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 271 transitions. [2022-03-20 02:29:57,691 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 271 transitions. Word has length 57 [2022-03-20 02:29:57,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:57,691 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 271 transitions. [2022-03-20 02:29:57,691 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:29:57,691 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 271 transitions. [2022-03-20 02:29:57,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-03-20 02:29:57,692 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:57,692 INFO L499 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] [2022-03-20 02:29:57,692 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:29:57,692 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:57,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:57,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1039954733, now seen corresponding path program 1 times [2022-03-20 02:29:57,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:57,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548943015] [2022-03-20 02:29:57,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:57,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-03-20 02:29:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:29:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:57,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:57,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548943015] [2022-03-20 02:29:57,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548943015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:57,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:57,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-20 02:29:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427819728] [2022-03-20 02:29:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:57,848 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 02:29:57,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:57,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 02:29:57,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:29:57,848 INFO L87 Difference]: Start difference. First operand 210 states and 271 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:29:58,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:58,361 INFO L93 Difference]: Finished difference Result 230 states and 294 transitions. [2022-03-20 02:29:58,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-20 02:29:58,361 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2022-03-20 02:29:58,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:58,364 INFO L225 Difference]: With dead ends: 230 [2022-03-20 02:29:58,364 INFO L226 Difference]: Without dead ends: 223 [2022-03-20 02:29:58,364 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:29:58,365 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 437 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:58,365 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 651 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 02:29:58,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-03-20 02:29:58,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 211. [2022-03-20 02:29:58,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 172 states have (on average 1.3372093023255813) internal successors, (230), 174 states have internal predecessors, (230), 23 states have call successors, (23), 17 states have call predecessors, (23), 15 states have return successors, (19), 19 states have call predecessors, (19), 17 states have call successors, (19) [2022-03-20 02:29:58,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 272 transitions. [2022-03-20 02:29:58,378 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 272 transitions. Word has length 57 [2022-03-20 02:29:58,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:58,378 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 272 transitions. [2022-03-20 02:29:58,378 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:29:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 272 transitions. [2022-03-20 02:29:58,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-03-20 02:29:58,379 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:58,379 INFO L499 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] [2022-03-20 02:29:58,379 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:29:58,379 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:58,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1182038570, now seen corresponding path program 1 times [2022-03-20 02:29:58,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:58,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839133599] [2022-03-20 02:29:58,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:58,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:58,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:58,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-20 02:29:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:58,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:29:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:58,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:58,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:58,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839133599] [2022-03-20 02:29:58,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839133599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:58,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:58,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-20 02:29:58,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72872863] [2022-03-20 02:29:58,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:58,603 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-20 02:29:58,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:58,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-20 02:29:58,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:29:58,604 INFO L87 Difference]: Start difference. First operand 211 states and 272 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:29:59,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:59,279 INFO L93 Difference]: Finished difference Result 223 states and 284 transitions. [2022-03-20 02:29:59,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-20 02:29:59,279 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2022-03-20 02:29:59,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:59,280 INFO L225 Difference]: With dead ends: 223 [2022-03-20 02:29:59,280 INFO L226 Difference]: Without dead ends: 209 [2022-03-20 02:29:59,280 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:29:59,281 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 124 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:59,281 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 980 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-20 02:29:59,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-03-20 02:29:59,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-03-20 02:29:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 171 states have (on average 1.3333333333333333) internal successors, (228), 173 states have internal predecessors, (228), 22 states have call successors, (22), 17 states have call predecessors, (22), 15 states have return successors, (18), 18 states have call predecessors, (18), 16 states have call successors, (18) [2022-03-20 02:29:59,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 268 transitions. [2022-03-20 02:29:59,291 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 268 transitions. Word has length 57 [2022-03-20 02:29:59,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:59,291 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 268 transitions. [2022-03-20 02:29:59,292 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:29:59,292 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 268 transitions. [2022-03-20 02:29:59,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 02:29:59,292 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:59,292 INFO L499 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] [2022-03-20 02:29:59,292 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:29:59,292 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:59,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:59,293 INFO L85 PathProgramCache]: Analyzing trace with hash -722543360, now seen corresponding path program 1 times [2022-03-20 02:29:59,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:59,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653294615] [2022-03-20 02:29:59,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:59,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:29:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:29:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:59,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:59,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653294615] [2022-03-20 02:29:59,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653294615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:59,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:59,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:29:59,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188400341] [2022-03-20 02:29:59,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:59,402 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:29:59,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:59,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:29:59,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:29:59,402 INFO L87 Difference]: Start difference. First operand 209 states and 268 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-20 02:29:59,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:59,665 INFO L93 Difference]: Finished difference Result 248 states and 309 transitions. [2022-03-20 02:29:59,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:29:59,665 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2022-03-20 02:29:59,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:59,666 INFO L225 Difference]: With dead ends: 248 [2022-03-20 02:29:59,666 INFO L226 Difference]: Without dead ends: 208 [2022-03-20 02:29:59,667 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-20 02:29:59,667 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 353 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:59,667 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 450 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 02:29:59,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-03-20 02:29:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-03-20 02:29:59,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 170 states have (on average 1.311764705882353) internal successors, (223), 172 states have internal predecessors, (223), 22 states have call successors, (22), 17 states have call predecessors, (22), 15 states have return successors, (18), 18 states have call predecessors, (18), 16 states have call successors, (18) [2022-03-20 02:29:59,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 263 transitions. [2022-03-20 02:29:59,679 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 263 transitions. Word has length 60 [2022-03-20 02:29:59,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:59,679 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 263 transitions. [2022-03-20 02:29:59,679 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-20 02:29:59,679 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 263 transitions. [2022-03-20 02:29:59,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 02:29:59,680 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:59,680 INFO L499 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] [2022-03-20 02:29:59,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:29:59,680 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:59,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:59,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2132592656, now seen corresponding path program 1 times [2022-03-20 02:29:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:59,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577698545] [2022-03-20 02:29:59,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:59,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:29:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:59,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:59,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577698545] [2022-03-20 02:29:59,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577698545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:59,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:59,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-20 02:29:59,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015043011] [2022-03-20 02:29:59,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:59,861 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-20 02:29:59,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:59,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-20 02:29:59,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:29:59,862 INFO L87 Difference]: Start difference. First operand 208 states and 263 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:30:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:30:00,339 INFO L93 Difference]: Finished difference Result 220 states and 275 transitions. [2022-03-20 02:30:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-20 02:30:00,339 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2022-03-20 02:30:00,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:30:00,340 INFO L225 Difference]: With dead ends: 220 [2022-03-20 02:30:00,340 INFO L226 Difference]: Without dead ends: 196 [2022-03-20 02:30:00,341 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:30:00,341 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 343 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:30:00,341 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 878 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 02:30:00,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-03-20 02:30:00,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-03-20 02:30:00,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 161 states have (on average 1.3043478260869565) internal successors, (210), 163 states have internal predecessors, (210), 20 states have call successors, (20), 16 states have call predecessors, (20), 14 states have return successors, (16), 16 states have call predecessors, (16), 14 states have call successors, (16) [2022-03-20 02:30:00,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 246 transitions. [2022-03-20 02:30:00,351 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 246 transitions. Word has length 56 [2022-03-20 02:30:00,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:30:00,351 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 246 transitions. [2022-03-20 02:30:00,351 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:30:00,351 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 246 transitions. [2022-03-20 02:30:00,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-20 02:30:00,352 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:30:00,352 INFO L499 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] [2022-03-20 02:30:00,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:30:00,352 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:30:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:30:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1221590652, now seen corresponding path program 1 times [2022-03-20 02:30:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:30:00,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340720414] [2022-03-20 02:30:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:30:00,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:30:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:00,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:30:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:00,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:30:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:00,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:30:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:00,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:30:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:00,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-03-20 02:30:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:00,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:30:00,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:30:00,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340720414] [2022-03-20 02:30:00,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340720414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:30:00,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:30:00,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-20 02:30:00,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582657495] [2022-03-20 02:30:00,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:30:00,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 02:30:00,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:30:00,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 02:30:00,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:30:00,508 INFO L87 Difference]: Start difference. First operand 196 states and 246 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:30:01,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:30:01,016 INFO L93 Difference]: Finished difference Result 249 states and 302 transitions. [2022-03-20 02:30:01,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-20 02:30:01,016 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2022-03-20 02:30:01,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:30:01,017 INFO L225 Difference]: With dead ends: 249 [2022-03-20 02:30:01,017 INFO L226 Difference]: Without dead ends: 232 [2022-03-20 02:30:01,017 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-03-20 02:30:01,019 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 568 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:30:01,019 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [568 Valid, 536 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 02:30:01,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-03-20 02:30:01,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2022-03-20 02:30:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 166 states have (on average 1.2951807228915662) internal successors, (215), 169 states have internal predecessors, (215), 20 states have call successors, (20), 16 states have call predecessors, (20), 15 states have return successors, (18), 16 states have call predecessors, (18), 14 states have call successors, (18) [2022-03-20 02:30:01,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 253 transitions. [2022-03-20 02:30:01,047 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 253 transitions. Word has length 55 [2022-03-20 02:30:01,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:30:01,048 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 253 transitions. [2022-03-20 02:30:01,048 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:30:01,048 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 253 transitions. [2022-03-20 02:30:01,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-20 02:30:01,049 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:30:01,049 INFO L499 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] [2022-03-20 02:30:01,049 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:30:01,050 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:30:01,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:30:01,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2050869943, now seen corresponding path program 1 times [2022-03-20 02:30:01,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:30:01,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877653056] [2022-03-20 02:30:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:30:01,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:30:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:30:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:30:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:30:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:30:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-03-20 02:30:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:30:01,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:30:01,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877653056] [2022-03-20 02:30:01,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877653056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:30:01,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:30:01,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-20 02:30:01,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997505255] [2022-03-20 02:30:01,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:30:01,222 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-20 02:30:01,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:30:01,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-20 02:30:01,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-03-20 02:30:01,223 INFO L87 Difference]: Start difference. First operand 202 states and 253 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:30:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:30:01,754 INFO L93 Difference]: Finished difference Result 218 states and 269 transitions. [2022-03-20 02:30:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-20 02:30:01,755 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2022-03-20 02:30:01,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:30:01,756 INFO L225 Difference]: With dead ends: 218 [2022-03-20 02:30:01,756 INFO L226 Difference]: Without dead ends: 180 [2022-03-20 02:30:01,756 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:30:01,756 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 319 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:30:01,757 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 731 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-20 02:30:01,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-03-20 02:30:01,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-03-20 02:30:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 145 states have (on average 1.206896551724138) internal successors, (175), 148 states have internal predecessors, (175), 19 states have call successors, (19), 16 states have call predecessors, (19), 15 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2022-03-20 02:30:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 210 transitions. [2022-03-20 02:30:01,768 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 210 transitions. Word has length 55 [2022-03-20 02:30:01,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:30:01,768 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 210 transitions. [2022-03-20 02:30:01,768 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:30:01,768 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 210 transitions. [2022-03-20 02:30:01,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-20 02:30:01,769 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:30:01,769 INFO L499 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] [2022-03-20 02:30:01,769 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:30:01,769 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:30:01,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:30:01,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1918234721, now seen corresponding path program 1 times [2022-03-20 02:30:01,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:30:01,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631323546] [2022-03-20 02:30:01,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:30:01,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:30:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:30:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:30:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:30:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-03-20 02:30:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:30:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:30:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:30:01,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:30:01,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:30:01,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631323546] [2022-03-20 02:30:01,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631323546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:30:01,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:30:01,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 02:30:01,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37405754] [2022-03-20 02:30:01,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:30:01,949 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 02:30:01,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:30:01,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 02:30:01,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:30:01,950 INFO L87 Difference]: Start difference. First operand 180 states and 210 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:30:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:30:02,245 INFO L93 Difference]: Finished difference Result 216 states and 251 transitions. [2022-03-20 02:30:02,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:30:02,245 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2022-03-20 02:30:02,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:30:02,246 INFO L225 Difference]: With dead ends: 216 [2022-03-20 02:30:02,246 INFO L226 Difference]: Without dead ends: 174 [2022-03-20 02:30:02,247 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:30:02,247 INFO L913 BasicCegarLoop]: 152 mSDtfsCounter, 96 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:30:02,247 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 494 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 02:30:02,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-20 02:30:02,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-03-20 02:30:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 142 states have internal predecessors, (166), 19 states have call successors, (19), 16 states have call predecessors, (19), 15 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2022-03-20 02:30:02,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 201 transitions. [2022-03-20 02:30:02,257 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 201 transitions. Word has length 58 [2022-03-20 02:30:02,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:30:02,257 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 201 transitions. [2022-03-20 02:30:02,257 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:30:02,257 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 201 transitions. [2022-03-20 02:30:02,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 02:30:02,257 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:30:02,258 INFO L499 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] [2022-03-20 02:30:02,258 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 02:30:02,258 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:30:02,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:30:02,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1199488421, now seen corresponding path program 1 times [2022-03-20 02:30:02,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:30:02,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625698655] [2022-03-20 02:30:02,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:30:02,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:30:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 02:30:02,269 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-20 02:30:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 02:30:02,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-20 02:30:02,309 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-03-20 02:30:02,309 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 02:30:02,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 02:30:02,317 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:30:02,319 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 02:30:02,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 02:30:02 BoogieIcfgContainer [2022-03-20 02:30:02,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 02:30:02,402 INFO L158 Benchmark]: Toolchain (without parser) took 16220.56ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 115.3MB in the beginning and 96.3MB in the end (delta: 19.0MB). Peak memory consumption was 141.3MB. Max. memory is 8.0GB. [2022-03-20 02:30:02,405 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 165.7MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 02:30:02,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.75ms. Allocated memory is still 165.7MB. Free memory was 115.1MB in the beginning and 136.5MB in the end (delta: -21.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-20 02:30:02,405 INFO L158 Benchmark]: Boogie Preprocessor took 80.10ms. Allocated memory is still 165.7MB. Free memory was 136.5MB in the beginning and 133.6MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-20 02:30:02,405 INFO L158 Benchmark]: RCFGBuilder took 680.14ms. Allocated memory is still 165.7MB. Free memory was 133.6MB in the beginning and 100.4MB in the end (delta: 33.1MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-03-20 02:30:02,407 INFO L158 Benchmark]: TraceAbstraction took 15124.20ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 99.8MB in the beginning and 96.3MB in the end (delta: 3.5MB). Peak memory consumption was 126.7MB. Max. memory is 8.0GB. [2022-03-20 02:30:02,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 165.7MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 331.75ms. Allocated memory is still 165.7MB. Free memory was 115.1MB in the beginning and 136.5MB in the end (delta: -21.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.10ms. Allocated memory is still 165.7MB. Free memory was 136.5MB in the beginning and 133.6MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 680.14ms. Allocated memory is still 165.7MB. Free memory was 133.6MB in the beginning and 100.4MB in the end (delta: 33.1MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 15124.20ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 99.8MB in the beginning and 96.3MB in the end (delta: 3.5MB). Peak memory consumption was 126.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1013]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [\old(compFptr)=67, \old(compRegistered)=61, \old(customIrp)=53, \old(DC)=65, \old(DevicePowerState)=68, \old(Executive)=50, \old(IPC)=58, \old(KernelMode)=55, \old(lowerDriverReturn)=49, \old(MPR1)=60, \old(MPR3)=69, \old(myStatus)=64, \old(NP)=51, \old(pended)=54, \old(s)=56, \old(setEventCalled)=52, \old(SKIP1)=57, \old(SKIP2)=62, \old(UNLOADED)=66, 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=0, Executive=0, IPC=0, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] COND FALSE !(irp_choice == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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=0, 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=0, 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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L388] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [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)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L236] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, 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)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L248] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L290] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [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=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] 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=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 243 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 23, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10973 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10953 mSDsluCounter, 12957 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7730 mSDsCounter, 2057 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15632 IncrementalHoareTripleChecker+Invalid, 17689 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2057 mSolverCounterUnsat, 5227 mSDtfsCounter, 15632 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 467 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=3, InterpolantAutomatonStates: 227, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 22 MinimizatonAttempts, 227 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1126 NumberOfCodeBlocks, 1126 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1048 ConstructedInterpolants, 0 QuantifiedInterpolants, 5294 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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! [2022-03-20 02:30:02,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...