./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 10:54:15,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 10:54:15,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 10:54:15,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 10:54:15,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 10:54:15,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 10:54:15,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 10:54:15,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 10:54:15,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 10:54:15,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 10:54:15,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 10:54:15,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 10:54:15,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 10:54:15,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 10:54:15,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 10:54:15,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 10:54:15,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 10:54:15,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 10:54:15,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 10:54:15,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 10:54:15,091 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 10:54:15,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 10:54:15,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 10:54:15,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 10:54:15,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 10:54:15,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 10:54:15,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 10:54:15,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 10:54:15,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 10:54:15,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 10:54:15,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 10:54:15,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 10:54:15,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 10:54:15,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 10:54:15,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 10:54:15,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 10:54:15,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 10:54:15,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 10:54:15,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 10:54:15,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 10:54:15,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 10:54:15,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 10:54:15,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 10:54:15,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 10:54:15,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 10:54:15,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 10:54:15,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 10:54:15,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 10:54:15,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 10:54:15,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 10:54:15,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 10:54:15,144 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 10:54:15,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 10:54:15,145 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 10:54:15,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 10:54:15,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 10:54:15,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 10:54:15,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 10:54:15,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 10:54:15,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 10:54:15,146 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 10:54:15,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 10:54:15,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 10:54:15,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 10:54:15,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 10:54:15,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 10:54:15,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 10:54:15,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:54:15,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 10:54:15,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 10:54:15,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 10:54:15,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 10:54:15,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 10:54:15,149 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 10:54:15,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 10:54:15,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 10:54:15,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c [2022-07-19 10:54:15,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 10:54:15,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 10:54:15,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 10:54:15,358 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 10:54:15,359 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 10:54:15,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2022-07-19 10:54:15,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f55c9030/462be6a62c274de193f5e6011116dfc7/FLAGa0e9fbc1e [2022-07-19 10:54:15,840 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 10:54:15,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2022-07-19 10:54:15,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f55c9030/462be6a62c274de193f5e6011116dfc7/FLAGa0e9fbc1e [2022-07-19 10:54:15,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f55c9030/462be6a62c274de193f5e6011116dfc7 [2022-07-19 10:54:15,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 10:54:15,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 10:54:15,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 10:54:15,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 10:54:15,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 10:54:15,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:54:15" (1/1) ... [2022-07-19 10:54:15,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bad327b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:15, skipping insertion in model container [2022-07-19 10:54:15,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:54:15" (1/1) ... [2022-07-19 10:54:15,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 10:54:15,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 10:54:16,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2022-07-19 10:54:16,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:54:16,142 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 10:54:16,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2022-07-19 10:54:16,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:54:16,204 INFO L208 MainTranslator]: Completed translation [2022-07-19 10:54:16,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16 WrapperNode [2022-07-19 10:54:16,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 10:54:16,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 10:54:16,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 10:54:16,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 10:54:16,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,284 INFO L137 Inliner]: procedures = 37, calls = 62, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 916 [2022-07-19 10:54:16,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 10:54:16,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 10:54:16,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 10:54:16,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 10:54:16,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 10:54:16,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 10:54:16,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 10:54:16,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 10:54:16,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (1/1) ... [2022-07-19 10:54:16,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:54:16,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:54:16,376 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) [2022-07-19 10:54:16,377 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 [2022-07-19 10:54:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 10:54:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-07-19 10:54:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-07-19 10:54:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-19 10:54:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-19 10:54:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-19 10:54:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-19 10:54:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-19 10:54:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-19 10:54:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 10:54:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-19 10:54:16,401 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-19 10:54:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 10:54:16,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 10:54:16,579 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 10:54:16,582 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 10:54:16,586 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,651 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-19 10:54:16,651 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-19 10:54:16,652 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,658 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-07-19 10:54:16,658 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-07-19 10:54:16,666 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,667 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,669 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,671 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,672 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,674 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,674 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,675 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,677 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:16,984 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2022-07-19 10:54:16,984 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2022-07-19 10:54:16,984 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume !false; [2022-07-19 10:54:16,984 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume false; [2022-07-19 10:54:16,985 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2022-07-19 10:54:16,985 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2022-07-19 10:54:16,985 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2022-07-19 10:54:16,985 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2022-07-19 10:54:16,985 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume !false; [2022-07-19 10:54:16,985 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume false; [2022-07-19 10:54:16,986 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-07-19 10:54:16,986 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-07-19 10:54:16,986 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume false; [2022-07-19 10:54:16,986 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !false; [2022-07-19 10:54:16,986 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2022-07-19 10:54:16,986 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2022-07-19 10:54:16,986 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##122: assume false; [2022-07-19 10:54:16,986 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume !false; [2022-07-19 10:54:16,989 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 10:54:17,018 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-19 10:54:17,018 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-19 10:54:17,026 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 10:54:17,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 10:54:17,035 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 10:54:17,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:54:17 BoogieIcfgContainer [2022-07-19 10:54:17,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 10:54:17,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 10:54:17,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 10:54:17,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 10:54:17,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:54:15" (1/3) ... [2022-07-19 10:54:17,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9bffc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:54:17, skipping insertion in model container [2022-07-19 10:54:17,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:54:16" (2/3) ... [2022-07-19 10:54:17,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9bffc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:54:17, skipping insertion in model container [2022-07-19 10:54:17,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:54:17" (3/3) ... [2022-07-19 10:54:17,044 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2022-07-19 10:54:17,054 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 10:54:17,054 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 10:54:17,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 10:54:17,092 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@573f1cba, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d08ec [2022-07-19 10:54:17,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 10:54:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 193 states have (on average 1.4818652849740932) internal successors, (286), 215 states have internal predecessors, (286), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) [2022-07-19 10:54:17,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-19 10:54:17,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:17,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:17,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:17,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:17,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1624233909, now seen corresponding path program 1 times [2022-07-19 10:54:17,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:17,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452008762] [2022-07-19 10:54:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:17,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:17,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:17,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452008762] [2022-07-19 10:54:17,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452008762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:17,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:17,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 10:54:17,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086615137] [2022-07-19 10:54:17,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:17,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 10:54:17,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:17,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 10:54:17,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:17,307 INFO L87 Difference]: Start difference. First operand has 238 states, 193 states have (on average 1.4818652849740932) internal successors, (286), 215 states have internal predecessors, (286), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:17,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:17,398 INFO L93 Difference]: Finished difference Result 405 states and 624 transitions. [2022-07-19 10:54:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 10:54:17,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-19 10:54:17,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:17,416 INFO L225 Difference]: With dead ends: 405 [2022-07-19 10:54:17,416 INFO L226 Difference]: Without dead ends: 231 [2022-07-19 10:54:17,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:17,426 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 193 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:17,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 448 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:54:17,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-07-19 10:54:17,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-07-19 10:54:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 188 states have (on average 1.425531914893617) internal successors, (268), 208 states have internal predecessors, (268), 38 states have call successors, (38), 5 states have call predecessors, (38), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-19 10:54:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 325 transitions. [2022-07-19 10:54:17,518 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 325 transitions. Word has length 13 [2022-07-19 10:54:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:17,518 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 325 transitions. [2022-07-19 10:54:17,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:17,520 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 325 transitions. [2022-07-19 10:54:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 10:54:17,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:17,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:17,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 10:54:17,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:17,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:17,525 INFO L85 PathProgramCache]: Analyzing trace with hash 23733269, now seen corresponding path program 1 times [2022-07-19 10:54:17,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:17,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455926383] [2022-07-19 10:54:17,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:17,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:17,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:17,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455926383] [2022-07-19 10:54:17,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455926383] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:17,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:17,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 10:54:17,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920509607] [2022-07-19 10:54:17,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:17,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 10:54:17,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:17,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 10:54:17,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:17,628 INFO L87 Difference]: Start difference. First operand 231 states and 325 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:17,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:17,725 INFO L93 Difference]: Finished difference Result 477 states and 675 transitions. [2022-07-19 10:54:17,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 10:54:17,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-19 10:54:17,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:17,728 INFO L225 Difference]: With dead ends: 477 [2022-07-19 10:54:17,728 INFO L226 Difference]: Without dead ends: 347 [2022-07-19 10:54:17,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:17,732 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 254 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:17,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 592 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:17,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-19 10:54:17,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 328. [2022-07-19 10:54:17,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.3652482269503545) internal successors, (385), 287 states have internal predecessors, (385), 38 states have call successors, (38), 9 states have call predecessors, (38), 7 states have return successors, (40), 32 states have call predecessors, (40), 27 states have call successors, (40) [2022-07-19 10:54:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 463 transitions. [2022-07-19 10:54:17,753 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 463 transitions. Word has length 18 [2022-07-19 10:54:17,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:17,753 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 463 transitions. [2022-07-19 10:54:17,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:17,754 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 463 transitions. [2022-07-19 10:54:17,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 10:54:17,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:17,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:17,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 10:54:17,755 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:17,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1035240094, now seen corresponding path program 1 times [2022-07-19 10:54:17,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:17,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678168247] [2022-07-19 10:54:17,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:17,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:17,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:17,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678168247] [2022-07-19 10:54:17,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678168247] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:17,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:17,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 10:54:17,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646433858] [2022-07-19 10:54:17,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:17,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 10:54:17,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:17,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 10:54:17,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:17,839 INFO L87 Difference]: Start difference. First operand 328 states and 463 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:17,866 INFO L93 Difference]: Finished difference Result 721 states and 1014 transitions. [2022-07-19 10:54:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 10:54:17,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-19 10:54:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:17,873 INFO L225 Difference]: With dead ends: 721 [2022-07-19 10:54:17,873 INFO L226 Difference]: Without dead ends: 516 [2022-07-19 10:54:17,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:17,879 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 276 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:17,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 485 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:54:17,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-07-19 10:54:17,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 487. [2022-07-19 10:54:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 424 states have (on average 1.3632075471698113) internal successors, (578), 426 states have internal predecessors, (578), 48 states have call successors, (48), 17 states have call predecessors, (48), 14 states have return successors, (61), 44 states have call predecessors, (61), 39 states have call successors, (61) [2022-07-19 10:54:17,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 687 transitions. [2022-07-19 10:54:17,922 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 687 transitions. Word has length 19 [2022-07-19 10:54:17,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:17,923 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 687 transitions. [2022-07-19 10:54:17,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:17,923 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 687 transitions. [2022-07-19 10:54:17,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-19 10:54:17,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:17,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:17,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 10:54:17,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:17,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:17,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1224032788, now seen corresponding path program 1 times [2022-07-19 10:54:17,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:17,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829681361] [2022-07-19 10:54:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:17,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:17,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:17,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:17,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829681361] [2022-07-19 10:54:17,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829681361] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:17,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:17,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 10:54:17,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297183184] [2022-07-19 10:54:17,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:17,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 10:54:17,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:17,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 10:54:17,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:17,976 INFO L87 Difference]: Start difference. First operand 487 states and 687 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:18,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:18,010 INFO L93 Difference]: Finished difference Result 578 states and 804 transitions. [2022-07-19 10:54:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 10:54:18,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-19 10:54:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:18,015 INFO L225 Difference]: With dead ends: 578 [2022-07-19 10:54:18,016 INFO L226 Difference]: Without dead ends: 558 [2022-07-19 10:54:18,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:18,022 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 277 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:18,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:54:18,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-07-19 10:54:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 531. [2022-07-19 10:54:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 462 states have (on average 1.3636363636363635) internal successors, (630), 470 states have internal predecessors, (630), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2022-07-19 10:54:18,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 745 transitions. [2022-07-19 10:54:18,049 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 745 transitions. Word has length 22 [2022-07-19 10:54:18,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:18,052 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 745 transitions. [2022-07-19 10:54:18,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 745 transitions. [2022-07-19 10:54:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-19 10:54:18,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:18,057 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:18,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 10:54:18,058 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:18,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:18,059 INFO L85 PathProgramCache]: Analyzing trace with hash -222747689, now seen corresponding path program 1 times [2022-07-19 10:54:18,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:18,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960140043] [2022-07-19 10:54:18,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:18,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:18,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:18,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960140043] [2022-07-19 10:54:18,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960140043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:18,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:18,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 10:54:18,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388544749] [2022-07-19 10:54:18,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:18,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 10:54:18,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:18,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 10:54:18,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:18,106 INFO L87 Difference]: Start difference. First operand 531 states and 745 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:18,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:18,171 INFO L93 Difference]: Finished difference Result 816 states and 1148 transitions. [2022-07-19 10:54:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 10:54:18,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-07-19 10:54:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:18,175 INFO L225 Difference]: With dead ends: 816 [2022-07-19 10:54:18,175 INFO L226 Difference]: Without dead ends: 813 [2022-07-19 10:54:18,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:18,176 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 123 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:18,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 671 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:54:18,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2022-07-19 10:54:18,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 622. [2022-07-19 10:54:18,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 547 states have (on average 1.3711151736745886) internal successors, (750), 558 states have internal predecessors, (750), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-19 10:54:18,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 874 transitions. [2022-07-19 10:54:18,199 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 874 transitions. Word has length 27 [2022-07-19 10:54:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:18,199 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 874 transitions. [2022-07-19 10:54:18,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 874 transitions. [2022-07-19 10:54:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-19 10:54:18,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:18,200 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:18,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 10:54:18,200 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:18,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:18,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1446649383, now seen corresponding path program 1 times [2022-07-19 10:54:18,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:18,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895826096] [2022-07-19 10:54:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:18,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:18,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:18,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:18,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895826096] [2022-07-19 10:54:18,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895826096] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:18,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:18,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 10:54:18,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543364767] [2022-07-19 10:54:18,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:18,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 10:54:18,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:18,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 10:54:18,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:54:18,250 INFO L87 Difference]: Start difference. First operand 622 states and 874 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:18,437 INFO L93 Difference]: Finished difference Result 1097 states and 1516 transitions. [2022-07-19 10:54:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 10:54:18,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-19 10:54:18,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:18,440 INFO L225 Difference]: With dead ends: 1097 [2022-07-19 10:54:18,440 INFO L226 Difference]: Without dead ends: 655 [2022-07-19 10:54:18,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 10:54:18,442 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 518 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:18,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 535 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:18,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-07-19 10:54:18,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 613. [2022-07-19 10:54:18,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 538 states have (on average 1.3550185873605949) internal successors, (729), 549 states have internal predecessors, (729), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-19 10:54:18,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 853 transitions. [2022-07-19 10:54:18,467 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 853 transitions. Word has length 28 [2022-07-19 10:54:18,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:18,468 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 853 transitions. [2022-07-19 10:54:18,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:18,468 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 853 transitions. [2022-07-19 10:54:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-19 10:54:18,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:18,470 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:18,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 10:54:18,471 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:18,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:18,471 INFO L85 PathProgramCache]: Analyzing trace with hash -266296252, now seen corresponding path program 1 times [2022-07-19 10:54:18,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:18,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855394489] [2022-07-19 10:54:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:18,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 10:54:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:18,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:18,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855394489] [2022-07-19 10:54:18,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855394489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:18,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:18,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 10:54:18,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847722565] [2022-07-19 10:54:18,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:18,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 10:54:18,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:18,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 10:54:18,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:54:18,508 INFO L87 Difference]: Start difference. First operand 613 states and 853 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:18,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:18,649 INFO L93 Difference]: Finished difference Result 666 states and 923 transitions. [2022-07-19 10:54:18,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 10:54:18,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-07-19 10:54:18,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:18,666 INFO L225 Difference]: With dead ends: 666 [2022-07-19 10:54:18,666 INFO L226 Difference]: Without dead ends: 661 [2022-07-19 10:54:18,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 10:54:18,668 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 67 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:18,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 743 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:18,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-19 10:54:18,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 640. [2022-07-19 10:54:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 565 states have (on average 1.3539823008849559) internal successors, (765), 575 states have internal predecessors, (765), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-19 10:54:18,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 889 transitions. [2022-07-19 10:54:18,696 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 889 transitions. Word has length 29 [2022-07-19 10:54:18,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:18,697 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 889 transitions. [2022-07-19 10:54:18,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:18,698 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 889 transitions. [2022-07-19 10:54:18,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-19 10:54:18,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:18,700 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:18,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 10:54:18,700 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:18,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:18,701 INFO L85 PathProgramCache]: Analyzing trace with hash 787890455, now seen corresponding path program 1 times [2022-07-19 10:54:18,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:18,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289423125] [2022-07-19 10:54:18,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:18,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:18,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 10:54:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:18,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:18,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289423125] [2022-07-19 10:54:18,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289423125] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:18,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:18,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 10:54:18,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318169132] [2022-07-19 10:54:18,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:18,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 10:54:18,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:18,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 10:54:18,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 10:54:18,780 INFO L87 Difference]: Start difference. First operand 640 states and 889 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:18,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:18,967 INFO L93 Difference]: Finished difference Result 670 states and 925 transitions. [2022-07-19 10:54:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 10:54:18,968 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-19 10:54:18,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:18,970 INFO L225 Difference]: With dead ends: 670 [2022-07-19 10:54:18,970 INFO L226 Difference]: Without dead ends: 661 [2022-07-19 10:54:18,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:54:18,971 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 382 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:18,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 918 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:18,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-19 10:54:18,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 640. [2022-07-19 10:54:18,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 565 states have (on average 1.3504424778761062) internal successors, (763), 575 states have internal predecessors, (763), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-19 10:54:19,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 887 transitions. [2022-07-19 10:54:19,000 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 887 transitions. Word has length 30 [2022-07-19 10:54:19,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:19,001 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 887 transitions. [2022-07-19 10:54:19,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:19,001 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 887 transitions. [2022-07-19 10:54:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-19 10:54:19,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:19,002 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:19,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 10:54:19,002 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:19,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1995000714, now seen corresponding path program 1 times [2022-07-19 10:54:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:19,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110169106] [2022-07-19 10:54:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:19,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:19,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110169106] [2022-07-19 10:54:19,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110169106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:19,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:19,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 10:54:19,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710361025] [2022-07-19 10:54:19,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:19,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 10:54:19,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:19,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 10:54:19,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:19,039 INFO L87 Difference]: Start difference. First operand 640 states and 887 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:19,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:19,087 INFO L93 Difference]: Finished difference Result 655 states and 907 transitions. [2022-07-19 10:54:19,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 10:54:19,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-19 10:54:19,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:19,090 INFO L225 Difference]: With dead ends: 655 [2022-07-19 10:54:19,090 INFO L226 Difference]: Without dead ends: 652 [2022-07-19 10:54:19,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:19,092 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 16 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:19,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 553 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:54:19,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-07-19 10:54:19,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 651. [2022-07-19 10:54:19,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 576 states have (on average 1.3489583333333333) internal successors, (777), 585 states have internal predecessors, (777), 52 states have call successors, (52), 23 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-19 10:54:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 901 transitions. [2022-07-19 10:54:19,114 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 901 transitions. Word has length 30 [2022-07-19 10:54:19,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:19,115 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 901 transitions. [2022-07-19 10:54:19,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 901 transitions. [2022-07-19 10:54:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-19 10:54:19,116 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:19,116 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:19,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 10:54:19,116 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:19,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:19,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2061053712, now seen corresponding path program 1 times [2022-07-19 10:54:19,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:19,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232083765] [2022-07-19 10:54:19,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:19,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 10:54:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:19,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:19,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232083765] [2022-07-19 10:54:19,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232083765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:19,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:19,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 10:54:19,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120297245] [2022-07-19 10:54:19,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:19,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 10:54:19,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:19,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 10:54:19,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 10:54:19,194 INFO L87 Difference]: Start difference. First operand 651 states and 901 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:19,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:19,361 INFO L93 Difference]: Finished difference Result 681 states and 937 transitions. [2022-07-19 10:54:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 10:54:19,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-19 10:54:19,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:19,380 INFO L225 Difference]: With dead ends: 681 [2022-07-19 10:54:19,381 INFO L226 Difference]: Without dead ends: 672 [2022-07-19 10:54:19,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:54:19,382 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 381 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:19,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 920 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:19,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-07-19 10:54:19,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 651. [2022-07-19 10:54:19,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 576 states have (on average 1.3454861111111112) internal successors, (775), 585 states have internal predecessors, (775), 52 states have call successors, (52), 23 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-19 10:54:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 899 transitions. [2022-07-19 10:54:19,412 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 899 transitions. Word has length 31 [2022-07-19 10:54:19,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:19,413 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 899 transitions. [2022-07-19 10:54:19,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 899 transitions. [2022-07-19 10:54:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-19 10:54:19,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:19,415 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:19,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 10:54:19,415 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:19,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:19,416 INFO L85 PathProgramCache]: Analyzing trace with hash -476390944, now seen corresponding path program 1 times [2022-07-19 10:54:19,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:19,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58832424] [2022-07-19 10:54:19,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:19,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 10:54:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:19,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:19,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58832424] [2022-07-19 10:54:19,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58832424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:19,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:19,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 10:54:19,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467342970] [2022-07-19 10:54:19,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:19,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 10:54:19,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:19,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 10:54:19,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 10:54:19,451 INFO L87 Difference]: Start difference. First operand 651 states and 899 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:19,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:19,547 INFO L93 Difference]: Finished difference Result 682 states and 936 transitions. [2022-07-19 10:54:19,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 10:54:19,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-19 10:54:19,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:19,551 INFO L225 Difference]: With dead ends: 682 [2022-07-19 10:54:19,551 INFO L226 Difference]: Without dead ends: 666 [2022-07-19 10:54:19,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 10:54:19,552 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 52 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:19,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1079 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:19,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-07-19 10:54:19,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 649. [2022-07-19 10:54:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 575 states have (on average 1.3443478260869566) internal successors, (773), 584 states have internal predecessors, (773), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (71), 42 states have call predecessors, (71), 43 states have call successors, (71) [2022-07-19 10:54:19,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 895 transitions. [2022-07-19 10:54:19,580 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 895 transitions. Word has length 32 [2022-07-19 10:54:19,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:19,580 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 895 transitions. [2022-07-19 10:54:19,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 895 transitions. [2022-07-19 10:54:19,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-19 10:54:19,581 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:19,581 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:19,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 10:54:19,581 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:19,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:19,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1919528250, now seen corresponding path program 1 times [2022-07-19 10:54:19,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:19,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048972822] [2022-07-19 10:54:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:19,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:19,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:19,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048972822] [2022-07-19 10:54:19,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048972822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:19,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:19,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 10:54:19,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994109395] [2022-07-19 10:54:19,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:19,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 10:54:19,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:19,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 10:54:19,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:19,604 INFO L87 Difference]: Start difference. First operand 649 states and 895 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:19,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:19,652 INFO L93 Difference]: Finished difference Result 1056 states and 1452 transitions. [2022-07-19 10:54:19,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 10:54:19,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-19 10:54:19,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:19,654 INFO L225 Difference]: With dead ends: 1056 [2022-07-19 10:54:19,654 INFO L226 Difference]: Without dead ends: 657 [2022-07-19 10:54:19,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 10:54:19,655 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 5 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:19,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 564 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:54:19,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-07-19 10:54:19,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2022-07-19 10:54:19,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 583 states have (on average 1.3447684391080617) internal successors, (784), 592 states have internal predecessors, (784), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (71), 42 states have call predecessors, (71), 43 states have call successors, (71) [2022-07-19 10:54:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 906 transitions. [2022-07-19 10:54:19,686 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 906 transitions. Word has length 34 [2022-07-19 10:54:19,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:19,687 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 906 transitions. [2022-07-19 10:54:19,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:54:19,687 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 906 transitions. [2022-07-19 10:54:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 10:54:19,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:19,688 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:19,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 10:54:19,688 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:19,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:19,689 INFO L85 PathProgramCache]: Analyzing trace with hash 197237323, now seen corresponding path program 1 times [2022-07-19 10:54:19,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:19,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543288099] [2022-07-19 10:54:19,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:19,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 10:54:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:19,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:19,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543288099] [2022-07-19 10:54:19,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543288099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:19,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:19,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 10:54:19,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661184764] [2022-07-19 10:54:19,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:19,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 10:54:19,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 10:54:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 10:54:19,738 INFO L87 Difference]: Start difference. First operand 657 states and 906 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:19,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:19,893 INFO L93 Difference]: Finished difference Result 741 states and 990 transitions. [2022-07-19 10:54:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 10:54:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-19 10:54:19,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:19,895 INFO L225 Difference]: With dead ends: 741 [2022-07-19 10:54:19,895 INFO L226 Difference]: Without dead ends: 482 [2022-07-19 10:54:19,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-19 10:54:19,896 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 385 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:19,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 831 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:19,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-07-19 10:54:19,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 441. [2022-07-19 10:54:19,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 388 states have (on average 1.3144329896907216) internal successors, (510), 397 states have internal predecessors, (510), 36 states have call successors, (36), 16 states have call predecessors, (36), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-19 10:54:19,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 585 transitions. [2022-07-19 10:54:19,913 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 585 transitions. Word has length 38 [2022-07-19 10:54:19,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:19,913 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 585 transitions. [2022-07-19 10:54:19,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:19,914 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 585 transitions. [2022-07-19 10:54:19,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-19 10:54:19,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:19,914 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:19,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 10:54:19,914 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:19,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:19,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1089851695, now seen corresponding path program 1 times [2022-07-19 10:54:19,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:19,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642955301] [2022-07-19 10:54:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:19,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 10:54:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:19,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:19,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642955301] [2022-07-19 10:54:19,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642955301] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:19,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:19,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 10:54:19,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004196065] [2022-07-19 10:54:19,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:19,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 10:54:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:19,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 10:54:19,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 10:54:19,982 INFO L87 Difference]: Start difference. First operand 441 states and 585 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:20,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:20,127 INFO L93 Difference]: Finished difference Result 644 states and 856 transitions. [2022-07-19 10:54:20,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 10:54:20,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-07-19 10:54:20,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:20,129 INFO L225 Difference]: With dead ends: 644 [2022-07-19 10:54:20,129 INFO L226 Difference]: Without dead ends: 436 [2022-07-19 10:54:20,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-19 10:54:20,130 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 74 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:20,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1592 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-07-19 10:54:20,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 424. [2022-07-19 10:54:20,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.303763440860215) internal successors, (485), 380 states have internal predecessors, (485), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-19 10:54:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 559 transitions. [2022-07-19 10:54:20,152 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 559 transitions. Word has length 41 [2022-07-19 10:54:20,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:20,152 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 559 transitions. [2022-07-19 10:54:20,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:20,152 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 559 transitions. [2022-07-19 10:54:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-19 10:54:20,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:20,153 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:20,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 10:54:20,153 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:20,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:20,154 INFO L85 PathProgramCache]: Analyzing trace with hash 738484898, now seen corresponding path program 1 times [2022-07-19 10:54:20,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:20,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330402803] [2022-07-19 10:54:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:20,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 10:54:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:20,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:20,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330402803] [2022-07-19 10:54:20,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330402803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:20,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:20,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 10:54:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616892165] [2022-07-19 10:54:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:20,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 10:54:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:20,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 10:54:20,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 10:54:20,192 INFO L87 Difference]: Start difference. First operand 424 states and 559 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:20,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:20,429 INFO L93 Difference]: Finished difference Result 530 states and 695 transitions. [2022-07-19 10:54:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 10:54:20,429 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-19 10:54:20,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:20,431 INFO L225 Difference]: With dead ends: 530 [2022-07-19 10:54:20,431 INFO L226 Difference]: Without dead ends: 463 [2022-07-19 10:54:20,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-07-19 10:54:20,433 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 362 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:20,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1148 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 10:54:20,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-07-19 10:54:20,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 424. [2022-07-19 10:54:20,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.2983870967741935) internal successors, (483), 380 states have internal predecessors, (483), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-19 10:54:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 557 transitions. [2022-07-19 10:54:20,458 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 557 transitions. Word has length 40 [2022-07-19 10:54:20,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:20,459 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 557 transitions. [2022-07-19 10:54:20,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 557 transitions. [2022-07-19 10:54:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-19 10:54:20,460 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:20,460 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:20,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 10:54:20,460 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:20,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:20,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1983910806, now seen corresponding path program 1 times [2022-07-19 10:54:20,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:20,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937976635] [2022-07-19 10:54:20,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:20,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:20,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 10:54:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:20,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:20,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:20,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937976635] [2022-07-19 10:54:20,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937976635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:20,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:20,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 10:54:20,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209516529] [2022-07-19 10:54:20,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:20,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 10:54:20,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:20,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 10:54:20,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 10:54:20,497 INFO L87 Difference]: Start difference. First operand 424 states and 557 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:20,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:20,606 INFO L93 Difference]: Finished difference Result 456 states and 592 transitions. [2022-07-19 10:54:20,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 10:54:20,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-07-19 10:54:20,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:20,608 INFO L225 Difference]: With dead ends: 456 [2022-07-19 10:54:20,608 INFO L226 Difference]: Without dead ends: 434 [2022-07-19 10:54:20,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-19 10:54:20,609 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 80 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:20,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1325 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:20,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-07-19 10:54:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 420. [2022-07-19 10:54:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 370 states have (on average 1.2972972972972974) internal successors, (480), 377 states have internal predecessors, (480), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (38), 28 states have call predecessors, (38), 27 states have call successors, (38) [2022-07-19 10:54:20,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 552 transitions. [2022-07-19 10:54:20,638 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 552 transitions. Word has length 41 [2022-07-19 10:54:20,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:20,638 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 552 transitions. [2022-07-19 10:54:20,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:20,639 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 552 transitions. [2022-07-19 10:54:20,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-19 10:54:20,639 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:20,639 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:20,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 10:54:20,640 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:20,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:20,640 INFO L85 PathProgramCache]: Analyzing trace with hash -13657420, now seen corresponding path program 1 times [2022-07-19 10:54:20,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:20,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908111103] [2022-07-19 10:54:20,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:20,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:20,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 10:54:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:20,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:20,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908111103] [2022-07-19 10:54:20,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908111103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:20,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:20,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 10:54:20,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66535905] [2022-07-19 10:54:20,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:20,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 10:54:20,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:20,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 10:54:20,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 10:54:20,692 INFO L87 Difference]: Start difference. First operand 420 states and 552 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:20,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:20,911 INFO L93 Difference]: Finished difference Result 623 states and 820 transitions. [2022-07-19 10:54:20,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 10:54:20,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-07-19 10:54:20,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:20,913 INFO L225 Difference]: With dead ends: 623 [2022-07-19 10:54:20,914 INFO L226 Difference]: Without dead ends: 432 [2022-07-19 10:54:20,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-19 10:54:20,914 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 321 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:20,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 915 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:20,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-07-19 10:54:20,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 420. [2022-07-19 10:54:20,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 370 states have (on average 1.2945945945945947) internal successors, (479), 377 states have internal predecessors, (479), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (38), 28 states have call predecessors, (38), 27 states have call successors, (38) [2022-07-19 10:54:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 551 transitions. [2022-07-19 10:54:20,933 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 551 transitions. Word has length 43 [2022-07-19 10:54:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:20,933 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 551 transitions. [2022-07-19 10:54:20,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 551 transitions. [2022-07-19 10:54:20,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-19 10:54:20,934 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:20,934 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:20,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 10:54:20,934 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:20,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1480101209, now seen corresponding path program 1 times [2022-07-19 10:54:20,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:20,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147071299] [2022-07-19 10:54:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:20,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 10:54:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:20,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:20,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147071299] [2022-07-19 10:54:20,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147071299] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:20,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:20,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 10:54:20,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579491745] [2022-07-19 10:54:20,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:20,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 10:54:20,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:20,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 10:54:20,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 10:54:20,992 INFO L87 Difference]: Start difference. First operand 420 states and 551 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:21,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:21,189 INFO L93 Difference]: Finished difference Result 702 states and 930 transitions. [2022-07-19 10:54:21,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 10:54:21,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-07-19 10:54:21,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:21,191 INFO L225 Difference]: With dead ends: 702 [2022-07-19 10:54:21,191 INFO L226 Difference]: Without dead ends: 439 [2022-07-19 10:54:21,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-07-19 10:54:21,192 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 340 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:21,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 921 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:21,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-07-19 10:54:21,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 412. [2022-07-19 10:54:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 363 states have (on average 1.2865013774104683) internal successors, (467), 370 states have internal predecessors, (467), 34 states have call successors, (34), 15 states have call predecessors, (34), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2022-07-19 10:54:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 538 transitions. [2022-07-19 10:54:21,211 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 538 transitions. Word has length 42 [2022-07-19 10:54:21,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:21,211 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 538 transitions. [2022-07-19 10:54:21,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:21,211 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 538 transitions. [2022-07-19 10:54:21,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-19 10:54:21,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:21,212 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:21,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 10:54:21,212 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:21,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2093894745, now seen corresponding path program 1 times [2022-07-19 10:54:21,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:21,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598400739] [2022-07-19 10:54:21,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:21,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:21,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 10:54:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:21,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:21,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:21,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598400739] [2022-07-19 10:54:21,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598400739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:21,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:21,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 10:54:21,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709045502] [2022-07-19 10:54:21,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:21,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 10:54:21,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:21,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 10:54:21,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:54:21,237 INFO L87 Difference]: Start difference. First operand 412 states and 538 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:21,346 INFO L93 Difference]: Finished difference Result 443 states and 571 transitions. [2022-07-19 10:54:21,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 10:54:21,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-07-19 10:54:21,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:21,348 INFO L225 Difference]: With dead ends: 443 [2022-07-19 10:54:21,348 INFO L226 Difference]: Without dead ends: 424 [2022-07-19 10:54:21,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 10:54:21,348 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 83 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:21,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 733 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-07-19 10:54:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 406. [2022-07-19 10:54:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 358 states have (on average 1.270949720670391) internal successors, (455), 364 states have internal predecessors, (455), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2022-07-19 10:54:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 525 transitions. [2022-07-19 10:54:21,368 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 525 transitions. Word has length 42 [2022-07-19 10:54:21,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:21,368 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 525 transitions. [2022-07-19 10:54:21,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 525 transitions. [2022-07-19 10:54:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-19 10:54:21,369 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:21,369 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:21,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 10:54:21,369 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:21,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash -33087980, now seen corresponding path program 1 times [2022-07-19 10:54:21,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:21,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202189924] [2022-07-19 10:54:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:21,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 10:54:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:21,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:21,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202189924] [2022-07-19 10:54:21,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202189924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:21,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:21,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 10:54:21,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947593972] [2022-07-19 10:54:21,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:21,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 10:54:21,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:21,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 10:54:21,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 10:54:21,417 INFO L87 Difference]: Start difference. First operand 406 states and 525 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:21,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:21,601 INFO L93 Difference]: Finished difference Result 451 states and 580 transitions. [2022-07-19 10:54:21,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 10:54:21,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-07-19 10:54:21,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:21,603 INFO L225 Difference]: With dead ends: 451 [2022-07-19 10:54:21,603 INFO L226 Difference]: Without dead ends: 447 [2022-07-19 10:54:21,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-19 10:54:21,604 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 228 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:21,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1591 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-07-19 10:54:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 421. [2022-07-19 10:54:21,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 372 states have (on average 1.260752688172043) internal successors, (469), 378 states have internal predecessors, (469), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (43), 28 states have call predecessors, (43), 27 states have call successors, (43) [2022-07-19 10:54:21,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 545 transitions. [2022-07-19 10:54:21,627 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 545 transitions. Word has length 43 [2022-07-19 10:54:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:21,627 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 545 transitions. [2022-07-19 10:54:21,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:21,628 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 545 transitions. [2022-07-19 10:54:21,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-19 10:54:21,629 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:21,629 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:21,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 10:54:21,630 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:21,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:21,630 INFO L85 PathProgramCache]: Analyzing trace with hash -32811150, now seen corresponding path program 1 times [2022-07-19 10:54:21,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:21,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640473966] [2022-07-19 10:54:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:21,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 10:54:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:21,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:21,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640473966] [2022-07-19 10:54:21,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640473966] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:21,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:21,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 10:54:21,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40174267] [2022-07-19 10:54:21,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:21,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 10:54:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:21,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 10:54:21,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 10:54:21,678 INFO L87 Difference]: Start difference. First operand 421 states and 545 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:21,849 INFO L93 Difference]: Finished difference Result 447 states and 573 transitions. [2022-07-19 10:54:21,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 10:54:21,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-07-19 10:54:21,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:21,851 INFO L225 Difference]: With dead ends: 447 [2022-07-19 10:54:21,851 INFO L226 Difference]: Without dead ends: 434 [2022-07-19 10:54:21,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-19 10:54:21,852 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 49 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:21,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1712 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-07-19 10:54:21,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 418. [2022-07-19 10:54:21,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 369 states have (on average 1.2628726287262872) internal successors, (466), 376 states have internal predecessors, (466), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (42), 27 states have call predecessors, (42), 27 states have call successors, (42) [2022-07-19 10:54:21,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 541 transitions. [2022-07-19 10:54:21,873 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 541 transitions. Word has length 43 [2022-07-19 10:54:21,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:21,873 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 541 transitions. [2022-07-19 10:54:21,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:21,874 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 541 transitions. [2022-07-19 10:54:21,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-19 10:54:21,874 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:21,874 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:21,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 10:54:21,875 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:21,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:21,875 INFO L85 PathProgramCache]: Analyzing trace with hash -97902919, now seen corresponding path program 1 times [2022-07-19 10:54:21,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:21,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321634703] [2022-07-19 10:54:21,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:21,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 10:54:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:21,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:21,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:21,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321634703] [2022-07-19 10:54:21,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321634703] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:21,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:21,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 10:54:21,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628058351] [2022-07-19 10:54:21,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:21,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 10:54:21,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:21,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 10:54:21,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:54:21,904 INFO L87 Difference]: Start difference. First operand 418 states and 541 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:21,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:21,997 INFO L93 Difference]: Finished difference Result 455 states and 582 transitions. [2022-07-19 10:54:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 10:54:21,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-07-19 10:54:21,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:22,001 INFO L225 Difference]: With dead ends: 455 [2022-07-19 10:54:22,001 INFO L226 Difference]: Without dead ends: 432 [2022-07-19 10:54:22,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 10:54:22,001 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 95 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:22,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 822 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-07-19 10:54:22,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 417. [2022-07-19 10:54:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 368 states have (on average 1.25) internal successors, (460), 375 states have internal predecessors, (460), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (42), 27 states have call predecessors, (42), 27 states have call successors, (42) [2022-07-19 10:54:22,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 535 transitions. [2022-07-19 10:54:22,025 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 535 transitions. Word has length 43 [2022-07-19 10:54:22,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:22,026 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 535 transitions. [2022-07-19 10:54:22,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:22,026 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 535 transitions. [2022-07-19 10:54:22,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-19 10:54:22,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:22,027 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:22,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-19 10:54:22,027 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:22,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:22,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1182842798, now seen corresponding path program 1 times [2022-07-19 10:54:22,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:22,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986515440] [2022-07-19 10:54:22,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:22,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 10:54:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:22,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:22,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986515440] [2022-07-19 10:54:22,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986515440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:22,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:22,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 10:54:22,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293592351] [2022-07-19 10:54:22,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:22,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 10:54:22,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:22,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 10:54:22,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 10:54:22,068 INFO L87 Difference]: Start difference. First operand 417 states and 535 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:22,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:22,264 INFO L93 Difference]: Finished difference Result 440 states and 558 transitions. [2022-07-19 10:54:22,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 10:54:22,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-19 10:54:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:22,266 INFO L225 Difference]: With dead ends: 440 [2022-07-19 10:54:22,266 INFO L226 Difference]: Without dead ends: 424 [2022-07-19 10:54:22,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-19 10:54:22,267 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 389 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:22,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 878 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-07-19 10:54:22,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 401. [2022-07-19 10:54:22,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 354 states have (on average 1.2542372881355932) internal successors, (444), 360 states have internal predecessors, (444), 32 states have call successors, (32), 15 states have call predecessors, (32), 14 states have return successors, (36), 26 states have call predecessors, (36), 26 states have call successors, (36) [2022-07-19 10:54:22,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 512 transitions. [2022-07-19 10:54:22,286 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 512 transitions. Word has length 44 [2022-07-19 10:54:22,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:22,286 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 512 transitions. [2022-07-19 10:54:22,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:22,286 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 512 transitions. [2022-07-19 10:54:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-19 10:54:22,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:22,287 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:22,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-19 10:54:22,287 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:22,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1424622961, now seen corresponding path program 1 times [2022-07-19 10:54:22,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:22,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833830122] [2022-07-19 10:54:22,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:22,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 10:54:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:22,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:22,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833830122] [2022-07-19 10:54:22,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833830122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:22,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:22,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 10:54:22,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431950447] [2022-07-19 10:54:22,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:22,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 10:54:22,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:22,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 10:54:22,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:54:22,318 INFO L87 Difference]: Start difference. First operand 401 states and 512 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:22,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:22,452 INFO L93 Difference]: Finished difference Result 680 states and 870 transitions. [2022-07-19 10:54:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 10:54:22,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-07-19 10:54:22,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:22,454 INFO L225 Difference]: With dead ends: 680 [2022-07-19 10:54:22,454 INFO L226 Difference]: Without dead ends: 492 [2022-07-19 10:54:22,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 10:54:22,455 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 159 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:22,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 768 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:22,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-19 10:54:22,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 454. [2022-07-19 10:54:22,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 402 states have (on average 1.256218905472637) internal successors, (505), 407 states have internal predecessors, (505), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (42), 30 states have call predecessors, (42), 29 states have call successors, (42) [2022-07-19 10:54:22,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 581 transitions. [2022-07-19 10:54:22,477 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 581 transitions. Word has length 46 [2022-07-19 10:54:22,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:22,477 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 581 transitions. [2022-07-19 10:54:22,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:22,477 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 581 transitions. [2022-07-19 10:54:22,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-19 10:54:22,478 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:22,478 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:22,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-19 10:54:22,478 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:22,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:22,478 INFO L85 PathProgramCache]: Analyzing trace with hash -910194117, now seen corresponding path program 1 times [2022-07-19 10:54:22,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:22,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318572348] [2022-07-19 10:54:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:22,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 10:54:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:22,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:22,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318572348] [2022-07-19 10:54:22,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318572348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:22,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:22,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 10:54:22,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371348945] [2022-07-19 10:54:22,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:22,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 10:54:22,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:22,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 10:54:22,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 10:54:22,509 INFO L87 Difference]: Start difference. First operand 454 states and 581 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:22,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:22,617 INFO L93 Difference]: Finished difference Result 484 states and 613 transitions. [2022-07-19 10:54:22,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 10:54:22,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-07-19 10:54:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:22,619 INFO L225 Difference]: With dead ends: 484 [2022-07-19 10:54:22,619 INFO L226 Difference]: Without dead ends: 461 [2022-07-19 10:54:22,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 10:54:22,620 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 95 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:22,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1058 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:22,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-07-19 10:54:22,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 436. [2022-07-19 10:54:22,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 386 states have (on average 1.261658031088083) internal successors, (487), 391 states have internal predecessors, (487), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (41), 29 states have call predecessors, (41), 28 states have call successors, (41) [2022-07-19 10:54:22,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 561 transitions. [2022-07-19 10:54:22,642 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 561 transitions. Word has length 45 [2022-07-19 10:54:22,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:22,642 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 561 transitions. [2022-07-19 10:54:22,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 561 transitions. [2022-07-19 10:54:22,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 10:54:22,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:22,643 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:22,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-19 10:54:22,643 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:22,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:22,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1973534822, now seen corresponding path program 1 times [2022-07-19 10:54:22,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:22,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317474619] [2022-07-19 10:54:22,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:22,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 10:54:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:22,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:22,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317474619] [2022-07-19 10:54:22,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317474619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:22,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:22,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 10:54:22,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243454693] [2022-07-19 10:54:22,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:22,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 10:54:22,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:22,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 10:54:22,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 10:54:22,711 INFO L87 Difference]: Start difference. First operand 436 states and 561 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:22,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:22,864 INFO L93 Difference]: Finished difference Result 698 states and 899 transitions. [2022-07-19 10:54:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 10:54:22,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-19 10:54:22,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:22,866 INFO L225 Difference]: With dead ends: 698 [2022-07-19 10:54:22,866 INFO L226 Difference]: Without dead ends: 477 [2022-07-19 10:54:22,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:54:22,867 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 52 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:22,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1627 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:22,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-07-19 10:54:22,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 436. [2022-07-19 10:54:22,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 386 states have (on average 1.2564766839378239) internal successors, (485), 391 states have internal predecessors, (485), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (41), 29 states have call predecessors, (41), 28 states have call successors, (41) [2022-07-19 10:54:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 559 transitions. [2022-07-19 10:54:22,890 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 559 transitions. Word has length 48 [2022-07-19 10:54:22,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:22,890 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 559 transitions. [2022-07-19 10:54:22,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:22,890 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 559 transitions. [2022-07-19 10:54:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 10:54:22,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:22,892 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:22,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-19 10:54:22,892 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:22,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:22,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1519307082, now seen corresponding path program 1 times [2022-07-19 10:54:22,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:22,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342241423] [2022-07-19 10:54:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 10:54:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:22,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:22,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342241423] [2022-07-19 10:54:22,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342241423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:22,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:22,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 10:54:22,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651527786] [2022-07-19 10:54:22,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:22,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 10:54:22,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:22,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 10:54:22,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:54:22,942 INFO L87 Difference]: Start difference. First operand 436 states and 559 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:23,168 INFO L93 Difference]: Finished difference Result 463 states and 588 transitions. [2022-07-19 10:54:23,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 10:54:23,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-19 10:54:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:23,170 INFO L225 Difference]: With dead ends: 463 [2022-07-19 10:54:23,170 INFO L226 Difference]: Without dead ends: 444 [2022-07-19 10:54:23,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-19 10:54:23,171 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 53 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:23,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1866 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 10:54:23,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-07-19 10:54:23,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 432. [2022-07-19 10:54:23,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 383 states have (on average 1.2558746736292428) internal successors, (481), 388 states have internal predecessors, (481), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (40), 28 states have call predecessors, (40), 27 states have call successors, (40) [2022-07-19 10:54:23,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 553 transitions. [2022-07-19 10:54:23,194 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 553 transitions. Word has length 48 [2022-07-19 10:54:23,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:23,194 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 553 transitions. [2022-07-19 10:54:23,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 553 transitions. [2022-07-19 10:54:23,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-19 10:54:23,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:23,196 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:23,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-19 10:54:23,196 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:23,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:23,196 INFO L85 PathProgramCache]: Analyzing trace with hash 883777374, now seen corresponding path program 1 times [2022-07-19 10:54:23,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:23,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740303819] [2022-07-19 10:54:23,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:23,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:23,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 10:54:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:23,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:23,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:23,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740303819] [2022-07-19 10:54:23,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740303819] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:23,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:23,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 10:54:23,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688744587] [2022-07-19 10:54:23,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:23,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 10:54:23,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:23,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 10:54:23,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:54:23,251 INFO L87 Difference]: Start difference. First operand 432 states and 553 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:23,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:23,437 INFO L93 Difference]: Finished difference Result 459 states and 582 transitions. [2022-07-19 10:54:23,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 10:54:23,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-07-19 10:54:23,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:23,439 INFO L225 Difference]: With dead ends: 459 [2022-07-19 10:54:23,439 INFO L226 Difference]: Without dead ends: 439 [2022-07-19 10:54:23,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-19 10:54:23,439 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 53 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:23,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1828 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:23,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-07-19 10:54:23,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 427. [2022-07-19 10:54:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 379 states have (on average 1.2559366754617414) internal successors, (476), 384 states have internal predecessors, (476), 31 states have call successors, (31), 16 states have call predecessors, (31), 16 states have return successors, (39), 27 states have call predecessors, (39), 26 states have call successors, (39) [2022-07-19 10:54:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 546 transitions. [2022-07-19 10:54:23,463 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 546 transitions. Word has length 49 [2022-07-19 10:54:23,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:23,463 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 546 transitions. [2022-07-19 10:54:23,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 546 transitions. [2022-07-19 10:54:23,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-19 10:54:23,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:23,464 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:23,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-19 10:54:23,464 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:23,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:23,465 INFO L85 PathProgramCache]: Analyzing trace with hash 164785177, now seen corresponding path program 1 times [2022-07-19 10:54:23,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:23,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601817022] [2022-07-19 10:54:23,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:23,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 10:54:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:23,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:23,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601817022] [2022-07-19 10:54:23,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601817022] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:23,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:23,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 10:54:23,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340161110] [2022-07-19 10:54:23,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:23,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 10:54:23,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 10:54:23,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:54:23,509 INFO L87 Difference]: Start difference. First operand 427 states and 546 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:23,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:23,680 INFO L93 Difference]: Finished difference Result 454 states and 575 transitions. [2022-07-19 10:54:23,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 10:54:23,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-07-19 10:54:23,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:23,682 INFO L225 Difference]: With dead ends: 454 [2022-07-19 10:54:23,682 INFO L226 Difference]: Without dead ends: 435 [2022-07-19 10:54:23,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-19 10:54:23,684 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 53 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:23,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1782 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:23,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-07-19 10:54:23,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 423. [2022-07-19 10:54:23,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 376 states have (on average 1.2553191489361701) internal successors, (472), 381 states have internal predecessors, (472), 30 states have call successors, (30), 16 states have call predecessors, (30), 16 states have return successors, (38), 26 states have call predecessors, (38), 25 states have call successors, (38) [2022-07-19 10:54:23,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 540 transitions. [2022-07-19 10:54:23,706 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 540 transitions. Word has length 49 [2022-07-19 10:54:23,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:23,706 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 540 transitions. [2022-07-19 10:54:23,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:23,706 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 540 transitions. [2022-07-19 10:54:23,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-19 10:54:23,707 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:23,707 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:23,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-19 10:54:23,707 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash -48892372, now seen corresponding path program 1 times [2022-07-19 10:54:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:23,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515061712] [2022-07-19 10:54:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 10:54:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:23,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:23,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:23,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515061712] [2022-07-19 10:54:23,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515061712] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:23,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:23,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 10:54:23,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940375991] [2022-07-19 10:54:23,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:23,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 10:54:23,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:23,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 10:54:23,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 10:54:23,768 INFO L87 Difference]: Start difference. First operand 423 states and 540 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:23,958 INFO L93 Difference]: Finished difference Result 777 states and 1007 transitions. [2022-07-19 10:54:23,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 10:54:23,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-07-19 10:54:23,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:23,960 INFO L225 Difference]: With dead ends: 777 [2022-07-19 10:54:23,960 INFO L226 Difference]: Without dead ends: 567 [2022-07-19 10:54:23,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:54:23,961 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 104 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:23,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1811 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:23,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-07-19 10:54:23,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 423. [2022-07-19 10:54:23,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 376 states have (on average 1.252659574468085) internal successors, (471), 381 states have internal predecessors, (471), 30 states have call successors, (30), 16 states have call predecessors, (30), 16 states have return successors, (38), 26 states have call predecessors, (38), 25 states have call successors, (38) [2022-07-19 10:54:23,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 539 transitions. [2022-07-19 10:54:23,989 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 539 transitions. Word has length 51 [2022-07-19 10:54:23,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:23,990 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 539 transitions. [2022-07-19 10:54:23,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:23,990 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 539 transitions. [2022-07-19 10:54:23,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-19 10:54:23,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:23,991 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:23,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-19 10:54:23,991 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:23,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:23,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1189199768, now seen corresponding path program 1 times [2022-07-19 10:54:23,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:23,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647791954] [2022-07-19 10:54:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:23,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 10:54:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:24,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:24,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647791954] [2022-07-19 10:54:24,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647791954] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:24,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:24,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 10:54:24,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443277172] [2022-07-19 10:54:24,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:24,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 10:54:24,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:24,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 10:54:24,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:54:24,036 INFO L87 Difference]: Start difference. First operand 423 states and 539 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:24,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:24,240 INFO L93 Difference]: Finished difference Result 450 states and 568 transitions. [2022-07-19 10:54:24,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 10:54:24,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-19 10:54:24,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:24,242 INFO L225 Difference]: With dead ends: 450 [2022-07-19 10:54:24,242 INFO L226 Difference]: Without dead ends: 413 [2022-07-19 10:54:24,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-19 10:54:24,243 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 61 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:24,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1786 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 10:54:24,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-07-19 10:54:24,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 401. [2022-07-19 10:54:24,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 357 states have (on average 1.2521008403361344) internal successors, (447), 362 states have internal predecessors, (447), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (36), 24 states have call predecessors, (36), 23 states have call successors, (36) [2022-07-19 10:54:24,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 511 transitions. [2022-07-19 10:54:24,263 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 511 transitions. Word has length 53 [2022-07-19 10:54:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:24,263 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 511 transitions. [2022-07-19 10:54:24,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:54:24,264 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 511 transitions. [2022-07-19 10:54:24,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-19 10:54:24,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:24,265 INFO L195 NwaCegarLoop]: 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] [2022-07-19 10:54:24,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-19 10:54:24,265 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:24,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:24,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1140585270, now seen corresponding path program 1 times [2022-07-19 10:54:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:24,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522453442] [2022-07-19 10:54:24,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:24,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 10:54:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 10:54:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:24,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:24,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522453442] [2022-07-19 10:54:24,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522453442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:24,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:24,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 10:54:24,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145288372] [2022-07-19 10:54:24,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:24,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 10:54:24,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:24,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 10:54:24,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-19 10:54:24,311 INFO L87 Difference]: Start difference. First operand 401 states and 511 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:54:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:24,496 INFO L93 Difference]: Finished difference Result 619 states and 785 transitions. [2022-07-19 10:54:24,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 10:54:24,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 59 [2022-07-19 10:54:24,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:24,498 INFO L225 Difference]: With dead ends: 619 [2022-07-19 10:54:24,498 INFO L226 Difference]: Without dead ends: 388 [2022-07-19 10:54:24,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-19 10:54:24,499 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 132 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:24,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1400 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-19 10:54:24,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 368. [2022-07-19 10:54:24,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 329 states have (on average 1.2522796352583587) internal successors, (412), 333 states have internal predecessors, (412), 25 states have call successors, (25), 14 states have call predecessors, (25), 13 states have return successors, (24), 21 states have call predecessors, (24), 21 states have call successors, (24) [2022-07-19 10:54:24,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 461 transitions. [2022-07-19 10:54:24,517 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 461 transitions. Word has length 59 [2022-07-19 10:54:24,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:24,518 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 461 transitions. [2022-07-19 10:54:24,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:54:24,518 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 461 transitions. [2022-07-19 10:54:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-19 10:54:24,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:24,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:24,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-19 10:54:24,519 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:24,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:24,519 INFO L85 PathProgramCache]: Analyzing trace with hash 732659986, now seen corresponding path program 1 times [2022-07-19 10:54:24,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:24,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229329642] [2022-07-19 10:54:24,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:24,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 10:54:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 10:54:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:24,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:24,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229329642] [2022-07-19 10:54:24,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229329642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:24,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:24,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 10:54:24,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015932684] [2022-07-19 10:54:24,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:24,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 10:54:24,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:24,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 10:54:24,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:54:24,573 INFO L87 Difference]: Start difference. First operand 368 states and 461 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:54:24,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:24,895 INFO L93 Difference]: Finished difference Result 772 states and 944 transitions. [2022-07-19 10:54:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 10:54:24,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2022-07-19 10:54:24,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:24,897 INFO L225 Difference]: With dead ends: 772 [2022-07-19 10:54:24,897 INFO L226 Difference]: Without dead ends: 493 [2022-07-19 10:54:24,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2022-07-19 10:54:24,898 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 390 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:24,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1402 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 10:54:24,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-07-19 10:54:24,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 462. [2022-07-19 10:54:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 413 states have (on average 1.2397094430992737) internal successors, (512), 419 states have internal predecessors, (512), 27 states have call successors, (27), 20 states have call predecessors, (27), 21 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2022-07-19 10:54:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 566 transitions. [2022-07-19 10:54:24,921 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 566 transitions. Word has length 61 [2022-07-19 10:54:24,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:24,921 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 566 transitions. [2022-07-19 10:54:24,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:54:24,922 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 566 transitions. [2022-07-19 10:54:24,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-19 10:54:24,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:24,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:24,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-19 10:54:24,922 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:24,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:24,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1387725979, now seen corresponding path program 1 times [2022-07-19 10:54:24,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:24,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920506473] [2022-07-19 10:54:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 10:54:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 10:54:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:24,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:24,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:24,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920506473] [2022-07-19 10:54:24,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920506473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:24,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:24,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 10:54:24,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766312208] [2022-07-19 10:54:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:24,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 10:54:24,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:24,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 10:54:24,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 10:54:24,980 INFO L87 Difference]: Start difference. First operand 462 states and 566 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 10:54:25,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:25,239 INFO L93 Difference]: Finished difference Result 464 states and 567 transitions. [2022-07-19 10:54:25,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 10:54:25,240 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2022-07-19 10:54:25,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:25,241 INFO L225 Difference]: With dead ends: 464 [2022-07-19 10:54:25,241 INFO L226 Difference]: Without dead ends: 413 [2022-07-19 10:54:25,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-19 10:54:25,242 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 103 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:25,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1613 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 10:54:25,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-07-19 10:54:25,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2022-07-19 10:54:25,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 369 states have (on average 1.2439024390243902) internal successors, (459), 374 states have internal predecessors, (459), 24 states have call successors, (24), 18 states have call predecessors, (24), 19 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2022-07-19 10:54:25,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 508 transitions. [2022-07-19 10:54:25,263 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 508 transitions. Word has length 62 [2022-07-19 10:54:25,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:25,263 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 508 transitions. [2022-07-19 10:54:25,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 10:54:25,263 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 508 transitions. [2022-07-19 10:54:25,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-19 10:54:25,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:25,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:25,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-19 10:54:25,264 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:25,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:25,265 INFO L85 PathProgramCache]: Analyzing trace with hash -642482331, now seen corresponding path program 1 times [2022-07-19 10:54:25,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:25,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474122466] [2022-07-19 10:54:25,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:25,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:25,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 10:54:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:25,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 10:54:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:25,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:25,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474122466] [2022-07-19 10:54:25,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474122466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:25,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:25,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 10:54:25,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76186774] [2022-07-19 10:54:25,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:25,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 10:54:25,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:25,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 10:54:25,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-19 10:54:25,328 INFO L87 Difference]: Start difference. First operand 413 states and 508 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:54:25,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:25,565 INFO L93 Difference]: Finished difference Result 454 states and 553 transitions. [2022-07-19 10:54:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 10:54:25,565 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2022-07-19 10:54:25,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:25,567 INFO L225 Difference]: With dead ends: 454 [2022-07-19 10:54:25,567 INFO L226 Difference]: Without dead ends: 435 [2022-07-19 10:54:25,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-07-19 10:54:25,568 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 342 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:25,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1370 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 10:54:25,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-07-19 10:54:25,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 421. [2022-07-19 10:54:25,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 376 states have (on average 1.2393617021276595) internal successors, (466), 381 states have internal predecessors, (466), 24 states have call successors, (24), 18 states have call predecessors, (24), 20 states have return successors, (27), 22 states have call predecessors, (27), 21 states have call successors, (27) [2022-07-19 10:54:25,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 517 transitions. [2022-07-19 10:54:25,588 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 517 transitions. Word has length 63 [2022-07-19 10:54:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:25,588 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 517 transitions. [2022-07-19 10:54:25,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:54:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 517 transitions. [2022-07-19 10:54:25,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-19 10:54:25,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:25,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:25,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-19 10:54:25,590 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:25,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:25,590 INFO L85 PathProgramCache]: Analyzing trace with hash -163812513, now seen corresponding path program 1 times [2022-07-19 10:54:25,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:25,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183718803] [2022-07-19 10:54:25,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:25,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:25,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 10:54:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:25,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 10:54:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:54:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:54:25,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:54:25,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183718803] [2022-07-19 10:54:25,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183718803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:54:25,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:54:25,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 10:54:25,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108865619] [2022-07-19 10:54:25,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:54:25,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 10:54:25,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:54:25,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 10:54:25,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-19 10:54:25,644 INFO L87 Difference]: Start difference. First operand 421 states and 517 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:54:25,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:54:25,850 INFO L93 Difference]: Finished difference Result 454 states and 552 transitions. [2022-07-19 10:54:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 10:54:25,851 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2022-07-19 10:54:25,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:54:25,852 INFO L225 Difference]: With dead ends: 454 [2022-07-19 10:54:25,852 INFO L226 Difference]: Without dead ends: 435 [2022-07-19 10:54:25,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-19 10:54:25,853 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 62 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:54:25,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1888 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:54:25,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-07-19 10:54:25,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 413. [2022-07-19 10:54:25,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 369 states have (on average 1.2411924119241193) internal successors, (458), 374 states have internal predecessors, (458), 24 states have call successors, (24), 18 states have call predecessors, (24), 19 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2022-07-19 10:54:25,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 507 transitions. [2022-07-19 10:54:25,872 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 507 transitions. Word has length 64 [2022-07-19 10:54:25,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:54:25,873 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 507 transitions. [2022-07-19 10:54:25,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:54:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 507 transitions. [2022-07-19 10:54:25,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-19 10:54:25,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:54:25,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:25,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-19 10:54:25,874 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:54:25,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:54:25,874 INFO L85 PathProgramCache]: Analyzing trace with hash 335595526, now seen corresponding path program 1 times [2022-07-19 10:54:25,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:54:25,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194718886] [2022-07-19 10:54:25,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:54:25,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:54:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:54:25,884 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 10:54:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:54:25,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 10:54:25,924 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 10:54:25,924 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 10:54:25,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-19 10:54:25,927 INFO L356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:54:25,930 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 10:54:25,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:54:25 BoogieIcfgContainer [2022-07-19 10:54:25,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 10:54:25,992 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 10:54:25,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 10:54:25,992 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 10:54:25,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:54:17" (3/4) ... [2022-07-19 10:54:25,994 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 10:54:26,051 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 10:54:26,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 10:54:26,052 INFO L158 Benchmark]: Toolchain (without parser) took 10183.48ms. Allocated memory was 113.2MB in the beginning and 262.1MB in the end (delta: 148.9MB). Free memory was 81.8MB in the beginning and 166.1MB in the end (delta: -84.3MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2022-07-19 10:54:26,054 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 40.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:54:26,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.52ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 79.5MB in the end (delta: 2.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-07-19 10:54:26,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.00ms. Allocated memory is still 113.2MB. Free memory was 79.5MB in the beginning and 74.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 10:54:26,057 INFO L158 Benchmark]: Boogie Preprocessor took 50.90ms. Allocated memory is still 113.2MB. Free memory was 74.7MB in the beginning and 71.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 10:54:26,058 INFO L158 Benchmark]: RCFGBuilder took 693.73ms. Allocated memory is still 113.2MB. Free memory was 71.7MB in the beginning and 74.4MB in the end (delta: -2.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-07-19 10:54:26,058 INFO L158 Benchmark]: TraceAbstraction took 8953.94ms. Allocated memory was 113.2MB in the beginning and 262.1MB in the end (delta: 148.9MB). Free memory was 73.8MB in the beginning and 177.6MB in the end (delta: -103.8MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-07-19 10:54:26,059 INFO L158 Benchmark]: Witness Printer took 59.56ms. Allocated memory is still 262.1MB. Free memory was 177.6MB in the beginning and 166.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 10:54:26,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 40.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.52ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 79.5MB in the end (delta: 2.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.00ms. Allocated memory is still 113.2MB. Free memory was 79.5MB in the beginning and 74.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.90ms. Allocated memory is still 113.2MB. Free memory was 74.7MB in the beginning and 71.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 693.73ms. Allocated memory is still 113.2MB. Free memory was 71.7MB in the beginning and 74.4MB in the end (delta: -2.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8953.94ms. Allocated memory was 113.2MB in the beginning and 262.1MB in the end (delta: 148.9MB). Free memory was 73.8MB in the beginning and 177.6MB in the end (delta: -103.8MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Witness Printer took 59.56ms. Allocated memory is still 262.1MB. Free memory was 177.6MB in the beginning and 166.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * 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: 65]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L708] CALL _BLAST_init() [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L708] RET _BLAST_init() [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] CALL stub_driver_init() [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] RET stub_driver_init() [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L740] CALL, EXPR FloppyPnp(devobj, pirp) [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] COND TRUE PagingReferenceCount == 1 VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L259] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L160] return (259); VAL [\old(DisketteExtension)=0, \old(Irp)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L259] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265-L266] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1045] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1049] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1064] return (0); VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L265-L266] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L970] returnVal2 = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L1006] return (returnVal2); VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L284] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] COND TRUE PagingReferenceCount == 0 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L434] return (ntStatus); VAL [\old(DeviceObject)=-1, \old(Irp)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] RET, EXPR FloppyPnp(devobj, pirp) [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L767] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L783] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L784] CALL errorFn() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 37, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6721 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6609 mSDsluCounter, 40564 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29584 mSDsCounter, 1057 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7951 IncrementalHoareTripleChecker+Invalid, 9008 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1057 mSolverCounterUnsat, 10980 mSDtfsCounter, 7951 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=657occurred in iteration=12, InterpolantAutomatonStates: 247, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 36 MinimizatonAttempts, 1015 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1537 NumberOfCodeBlocks, 1537 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 1435 ConstructedInterpolants, 0 QuantifiedInterpolants, 3726 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 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! [2022-07-19 10:54:26,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE