./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/toy2.cil.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/systemc/toy2.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a77d6f304c19846fdc8cd5bba9216d69953659ded966cffbf7faa285e2d864a4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:40:34,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:40:34,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:40:34,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:40:34,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:40:34,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:40:34,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:40:34,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:40:34,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:40:34,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:40:34,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:40:34,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:40:34,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:40:34,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:40:34,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:40:34,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:40:34,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:40:34,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:40:34,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:40:34,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:40:34,067 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:40:34,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:40:34,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:40:34,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:40:34,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:40:34,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:40:34,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:40:34,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:40:34,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:40:34,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:40:34,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:40:34,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:40:34,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:40:34,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:40:34,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:40:34,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:40:34,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:40:34,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:40:34,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:40:34,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:40:34,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:40:34,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:40:34,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:40:34,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:40:34,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:40:34,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:40:34,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:40:34,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:40:34,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:40:34,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:40:34,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:40:34,118 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:40:34,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:40:34,119 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:40:34,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:40:34,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:40:34,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:40:34,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:40:34,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:40:34,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:40:34,120 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:40:34,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:40:34,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:40:34,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:40:34,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:40:34,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:40:34,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:40:34,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:40:34,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:40:34,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:40:34,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:40:34,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:40:34,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:40:34,122 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:40:34,122 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:40:34,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:40:34,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a77d6f304c19846fdc8cd5bba9216d69953659ded966cffbf7faa285e2d864a4 [2022-07-19 17:40:34,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:40:34,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:40:34,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:40:34,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:40:34,351 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:40:34,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/toy2.cil.c [2022-07-19 17:40:34,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be42f10e5/4523003fb1fc43f380c7f3818cea7deb/FLAGd294b3bf6 [2022-07-19 17:40:34,836 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:40:34,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy2.cil.c [2022-07-19 17:40:34,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be42f10e5/4523003fb1fc43f380c7f3818cea7deb/FLAGd294b3bf6 [2022-07-19 17:40:34,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be42f10e5/4523003fb1fc43f380c7f3818cea7deb [2022-07-19 17:40:34,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:40:34,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:40:34,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:40:34,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:40:34,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:40:34,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:40:34" (1/1) ... [2022-07-19 17:40:34,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a80187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:34, skipping insertion in model container [2022-07-19 17:40:34,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:40:34" (1/1) ... [2022-07-19 17:40:34,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:40:34,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:40:35,064 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/systemc/toy2.cil.c[698,711] [2022-07-19 17:40:35,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:40:35,145 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:40:35,155 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/systemc/toy2.cil.c[698,711] [2022-07-19 17:40:35,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:40:35,214 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:40:35,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35 WrapperNode [2022-07-19 17:40:35,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:40:35,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:40:35,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:40:35,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:40:35,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,273 INFO L137 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 361 [2022-07-19 17:40:35,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:40:35,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:40:35,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:40:35,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:40:35,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:40:35,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:40:35,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:40:35,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:40:35,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (1/1) ... [2022-07-19 17:40:35,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:40:35,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:40:35,349 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 17:40:35,366 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 17:40:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:40:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:40:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:40:35,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:40:35,434 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:40:35,435 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:40:35,712 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:40:35,718 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:40:35,719 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-19 17:40:35,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:40:35 BoogieIcfgContainer [2022-07-19 17:40:35,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:40:35,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:40:35,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:40:35,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:40:35,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:40:34" (1/3) ... [2022-07-19 17:40:35,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fec79ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:40:35, skipping insertion in model container [2022-07-19 17:40:35,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:40:35" (2/3) ... [2022-07-19 17:40:35,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fec79ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:40:35, skipping insertion in model container [2022-07-19 17:40:35,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:40:35" (3/3) ... [2022-07-19 17:40:35,734 INFO L111 eAbstractionObserver]: Analyzing ICFG toy2.cil.c [2022-07-19 17:40:35,749 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:40:35,750 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:40:35,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:40:35,828 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@2f6c3d30, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2b07ccd4 [2022-07-19 17:40:35,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:40:35,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.8372093023255813) internal successors, (237), 130 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:35,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:35,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:35,838 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] [2022-07-19 17:40:35,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:35,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:35,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1633671955, now seen corresponding path program 1 times [2022-07-19 17:40:35,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:35,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566389304] [2022-07-19 17:40:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:35,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:36,043 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 17:40:36,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:36,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566389304] [2022-07-19 17:40:36,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566389304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:36,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:36,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:36,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117773749] [2022-07-19 17:40:36,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:36,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:36,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:36,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:36,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:36,079 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.8372093023255813) internal successors, (237), 130 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:36,124 INFO L93 Difference]: Finished difference Result 253 states and 460 transitions. [2022-07-19 17:40:36,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:36,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:36,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:36,136 INFO L225 Difference]: With dead ends: 253 [2022-07-19 17:40:36,137 INFO L226 Difference]: Without dead ends: 126 [2022-07-19 17:40:36,140 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 17:40:36,143 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:36,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 221 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:36,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-07-19 17:40:36,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-07-19 17:40:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.744) internal successors, (218), 125 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 218 transitions. [2022-07-19 17:40:36,190 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 218 transitions. Word has length 35 [2022-07-19 17:40:36,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:36,191 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 218 transitions. [2022-07-19 17:40:36,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,192 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 218 transitions. [2022-07-19 17:40:36,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:36,193 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:36,194 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] [2022-07-19 17:40:36,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:40:36,194 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:36,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:36,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1611039701, now seen corresponding path program 1 times [2022-07-19 17:40:36,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:36,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383551173] [2022-07-19 17:40:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:36,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:36,256 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 17:40:36,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:36,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383551173] [2022-07-19 17:40:36,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383551173] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:36,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:36,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:36,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87796169] [2022-07-19 17:40:36,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:36,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:36,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:36,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:36,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:36,261 INFO L87 Difference]: Start difference. First operand 126 states and 218 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:36,322 INFO L93 Difference]: Finished difference Result 340 states and 586 transitions. [2022-07-19 17:40:36,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:40:36,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:36,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:36,324 INFO L225 Difference]: With dead ends: 340 [2022-07-19 17:40:36,324 INFO L226 Difference]: Without dead ends: 217 [2022-07-19 17:40:36,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:40:36,326 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 568 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:36,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 366 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:36,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-07-19 17:40:36,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2022-07-19 17:40:36,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.7230046948356808) internal successors, (367), 213 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 367 transitions. [2022-07-19 17:40:36,339 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 367 transitions. Word has length 35 [2022-07-19 17:40:36,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:36,340 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 367 transitions. [2022-07-19 17:40:36,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,341 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 367 transitions. [2022-07-19 17:40:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:36,345 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:36,345 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] [2022-07-19 17:40:36,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:40:36,346 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:36,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:36,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1101566611, now seen corresponding path program 1 times [2022-07-19 17:40:36,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:36,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174158308] [2022-07-19 17:40:36,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:36,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:36,385 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 17:40:36,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:36,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174158308] [2022-07-19 17:40:36,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174158308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:36,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:36,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:36,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210382106] [2022-07-19 17:40:36,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:36,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:36,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:36,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:36,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:36,388 INFO L87 Difference]: Start difference. First operand 214 states and 367 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:36,426 INFO L93 Difference]: Finished difference Result 419 states and 721 transitions. [2022-07-19 17:40:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:36,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:36,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:36,431 INFO L225 Difference]: With dead ends: 419 [2022-07-19 17:40:36,431 INFO L226 Difference]: Without dead ends: 214 [2022-07-19 17:40:36,434 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 17:40:36,436 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 187 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:36,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 201 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:36,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-07-19 17:40:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-07-19 17:40:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.6666666666666667) internal successors, (355), 213 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 355 transitions. [2022-07-19 17:40:36,448 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 355 transitions. Word has length 35 [2022-07-19 17:40:36,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:36,448 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 355 transitions. [2022-07-19 17:40:36,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,449 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 355 transitions. [2022-07-19 17:40:36,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:36,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:36,450 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] [2022-07-19 17:40:36,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:40:36,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:36,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:36,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1744930967, now seen corresponding path program 1 times [2022-07-19 17:40:36,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:36,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070518015] [2022-07-19 17:40:36,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:36,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:36,478 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 17:40:36,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:36,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070518015] [2022-07-19 17:40:36,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070518015] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:36,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:36,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:36,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612218114] [2022-07-19 17:40:36,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:36,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:36,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:36,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:36,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:36,481 INFO L87 Difference]: Start difference. First operand 214 states and 355 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:36,535 INFO L93 Difference]: Finished difference Result 583 states and 968 transitions. [2022-07-19 17:40:36,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:40:36,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:36,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:36,537 INFO L225 Difference]: With dead ends: 583 [2022-07-19 17:40:36,537 INFO L226 Difference]: Without dead ends: 379 [2022-07-19 17:40:36,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 17:40:36,539 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 365 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:36,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 452 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:36,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-07-19 17:40:36,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 214. [2022-07-19 17:40:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.6525821596244132) internal successors, (352), 213 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 352 transitions. [2022-07-19 17:40:36,551 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 352 transitions. Word has length 35 [2022-07-19 17:40:36,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:36,552 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 352 transitions. [2022-07-19 17:40:36,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,552 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 352 transitions. [2022-07-19 17:40:36,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:36,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:36,553 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] [2022-07-19 17:40:36,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:40:36,553 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:36,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:36,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1806970581, now seen corresponding path program 1 times [2022-07-19 17:40:36,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:36,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853205523] [2022-07-19 17:40:36,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:36,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:36,579 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 17:40:36,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:36,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853205523] [2022-07-19 17:40:36,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853205523] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:36,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:36,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:36,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396183615] [2022-07-19 17:40:36,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:36,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:36,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:36,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:36,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:36,582 INFO L87 Difference]: Start difference. First operand 214 states and 352 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:36,643 INFO L93 Difference]: Finished difference Result 584 states and 962 transitions. [2022-07-19 17:40:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:40:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:36,645 INFO L225 Difference]: With dead ends: 584 [2022-07-19 17:40:36,645 INFO L226 Difference]: Without dead ends: 381 [2022-07-19 17:40:36,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 17:40:36,647 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 363 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:36,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 459 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:36,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-07-19 17:40:36,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 214. [2022-07-19 17:40:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.6384976525821595) internal successors, (349), 213 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 349 transitions. [2022-07-19 17:40:36,659 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 349 transitions. Word has length 35 [2022-07-19 17:40:36,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:36,659 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 349 transitions. [2022-07-19 17:40:36,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,659 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 349 transitions. [2022-07-19 17:40:36,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:36,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:36,660 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] [2022-07-19 17:40:36,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:40:36,661 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:36,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1947519191, now seen corresponding path program 1 times [2022-07-19 17:40:36,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:36,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382648881] [2022-07-19 17:40:36,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:36,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:36,686 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 17:40:36,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:36,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382648881] [2022-07-19 17:40:36,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382648881] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:36,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:36,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:36,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857013733] [2022-07-19 17:40:36,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:36,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:36,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:36,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:36,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:36,695 INFO L87 Difference]: Start difference. First operand 214 states and 349 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:36,745 INFO L93 Difference]: Finished difference Result 598 states and 975 transitions. [2022-07-19 17:40:36,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:40:36,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:36,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:36,747 INFO L225 Difference]: With dead ends: 598 [2022-07-19 17:40:36,747 INFO L226 Difference]: Without dead ends: 396 [2022-07-19 17:40:36,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 17:40:36,748 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 369 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:36,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 469 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:36,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-07-19 17:40:36,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 220. [2022-07-19 17:40:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.6118721461187215) internal successors, (353), 219 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 353 transitions. [2022-07-19 17:40:36,759 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 353 transitions. Word has length 35 [2022-07-19 17:40:36,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:36,759 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 353 transitions. [2022-07-19 17:40:36,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,759 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 353 transitions. [2022-07-19 17:40:36,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:36,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:36,760 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] [2022-07-19 17:40:36,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:40:36,761 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:36,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:36,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1813505685, now seen corresponding path program 1 times [2022-07-19 17:40:36,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:36,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889708175] [2022-07-19 17:40:36,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:36,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:36,783 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 17:40:36,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:36,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889708175] [2022-07-19 17:40:36,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889708175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:36,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:36,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:36,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643509417] [2022-07-19 17:40:36,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:36,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:36,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:36,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:36,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:36,786 INFO L87 Difference]: Start difference. First operand 220 states and 353 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:36,844 INFO L93 Difference]: Finished difference Result 751 states and 1203 transitions. [2022-07-19 17:40:36,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:40:36,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:36,847 INFO L225 Difference]: With dead ends: 751 [2022-07-19 17:40:36,847 INFO L226 Difference]: Without dead ends: 544 [2022-07-19 17:40:36,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 17:40:36,848 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 365 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:36,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 561 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:36,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-07-19 17:40:36,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 361. [2022-07-19 17:40:36,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.5944444444444446) internal successors, (574), 360 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 574 transitions. [2022-07-19 17:40:36,862 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 574 transitions. Word has length 35 [2022-07-19 17:40:36,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:36,863 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 574 transitions. [2022-07-19 17:40:36,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 574 transitions. [2022-07-19 17:40:36,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:36,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:36,864 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] [2022-07-19 17:40:36,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:40:36,864 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:36,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:36,865 INFO L85 PathProgramCache]: Analyzing trace with hash 8067351, now seen corresponding path program 1 times [2022-07-19 17:40:36,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:36,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250695869] [2022-07-19 17:40:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:36,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:36,907 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 17:40:36,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:36,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250695869] [2022-07-19 17:40:36,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250695869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:36,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:36,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:36,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940718236] [2022-07-19 17:40:36,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:36,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:36,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:36,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:36,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:36,909 INFO L87 Difference]: Start difference. First operand 361 states and 574 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:36,939 INFO L93 Difference]: Finished difference Result 862 states and 1375 transitions. [2022-07-19 17:40:36,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:36,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:36,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:36,942 INFO L225 Difference]: With dead ends: 862 [2022-07-19 17:40:36,957 INFO L226 Difference]: Without dead ends: 525 [2022-07-19 17:40:36,957 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 17:40:36,958 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 175 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:36,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 339 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:36,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-07-19 17:40:36,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 523. [2022-07-19 17:40:36,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 522 states have (on average 1.5900383141762453) internal successors, (830), 522 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 830 transitions. [2022-07-19 17:40:36,981 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 830 transitions. Word has length 35 [2022-07-19 17:40:36,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:36,981 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 830 transitions. [2022-07-19 17:40:36,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:36,982 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 830 transitions. [2022-07-19 17:40:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:36,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:36,983 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] [2022-07-19 17:40:36,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:40:36,987 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:36,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:36,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2127880731, now seen corresponding path program 1 times [2022-07-19 17:40:36,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:36,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570559413] [2022-07-19 17:40:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:36,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:37,029 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 17:40:37,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:37,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570559413] [2022-07-19 17:40:37,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570559413] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:37,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:37,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:37,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563449675] [2022-07-19 17:40:37,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:37,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:37,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:37,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:37,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:37,031 INFO L87 Difference]: Start difference. First operand 523 states and 830 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:37,094 INFO L93 Difference]: Finished difference Result 1331 states and 2113 transitions. [2022-07-19 17:40:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:40:37,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:37,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:37,098 INFO L225 Difference]: With dead ends: 1331 [2022-07-19 17:40:37,098 INFO L226 Difference]: Without dead ends: 825 [2022-07-19 17:40:37,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:40:37,101 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 477 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:37,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 327 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:37,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2022-07-19 17:40:37,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 523. [2022-07-19 17:40:37,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 522 states have (on average 1.5747126436781609) internal successors, (822), 522 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 822 transitions. [2022-07-19 17:40:37,124 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 822 transitions. Word has length 35 [2022-07-19 17:40:37,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:37,127 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 822 transitions. [2022-07-19 17:40:37,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,127 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 822 transitions. [2022-07-19 17:40:37,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:37,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:37,128 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] [2022-07-19 17:40:37,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:40:37,128 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:37,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:37,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1106812377, now seen corresponding path program 1 times [2022-07-19 17:40:37,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:37,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868745241] [2022-07-19 17:40:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:37,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:37,171 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 17:40:37,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:37,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868745241] [2022-07-19 17:40:37,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868745241] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:37,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:37,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840116585] [2022-07-19 17:40:37,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:37,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:37,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:37,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:37,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:37,173 INFO L87 Difference]: Start difference. First operand 523 states and 822 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:37,245 INFO L93 Difference]: Finished difference Result 1331 states and 2090 transitions. [2022-07-19 17:40:37,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:40:37,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:37,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:37,248 INFO L225 Difference]: With dead ends: 1331 [2022-07-19 17:40:37,248 INFO L226 Difference]: Without dead ends: 831 [2022-07-19 17:40:37,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:40:37,249 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 461 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:37,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 316 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:37,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2022-07-19 17:40:37,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 523. [2022-07-19 17:40:37,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 522 states have (on average 1.5593869731800767) internal successors, (814), 522 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 814 transitions. [2022-07-19 17:40:37,274 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 814 transitions. Word has length 35 [2022-07-19 17:40:37,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:37,274 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 814 transitions. [2022-07-19 17:40:37,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 814 transitions. [2022-07-19 17:40:37,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:37,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:37,275 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] [2022-07-19 17:40:37,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 17:40:37,275 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:37,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:37,275 INFO L85 PathProgramCache]: Analyzing trace with hash 95695127, now seen corresponding path program 1 times [2022-07-19 17:40:37,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:37,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728219102] [2022-07-19 17:40:37,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:37,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:37,307 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 17:40:37,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:37,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728219102] [2022-07-19 17:40:37,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728219102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:37,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:37,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:37,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989843325] [2022-07-19 17:40:37,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:37,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:37,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:37,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:37,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:37,311 INFO L87 Difference]: Start difference. First operand 523 states and 814 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:37,385 INFO L93 Difference]: Finished difference Result 1262 states and 1962 transitions. [2022-07-19 17:40:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:40:37,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:37,388 INFO L225 Difference]: With dead ends: 1262 [2022-07-19 17:40:37,388 INFO L226 Difference]: Without dead ends: 756 [2022-07-19 17:40:37,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:40:37,390 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 473 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:37,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 346 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-07-19 17:40:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 571. [2022-07-19 17:40:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 570 states have (on average 1.5280701754385966) internal successors, (871), 570 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 871 transitions. [2022-07-19 17:40:37,414 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 871 transitions. Word has length 35 [2022-07-19 17:40:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:37,414 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 871 transitions. [2022-07-19 17:40:37,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 871 transitions. [2022-07-19 17:40:37,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:40:37,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:37,415 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, 1, 1, 1] [2022-07-19 17:40:37,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 17:40:37,415 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:37,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:37,415 INFO L85 PathProgramCache]: Analyzing trace with hash 353860565, now seen corresponding path program 1 times [2022-07-19 17:40:37,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:37,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953442418] [2022-07-19 17:40:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:37,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:37,431 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 17:40:37,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:37,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953442418] [2022-07-19 17:40:37,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953442418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:37,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:37,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:37,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142657781] [2022-07-19 17:40:37,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:37,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:37,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:37,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:37,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:37,432 INFO L87 Difference]: Start difference. First operand 571 states and 871 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:37,478 INFO L93 Difference]: Finished difference Result 1360 states and 2080 transitions. [2022-07-19 17:40:37,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:37,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-19 17:40:37,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:37,489 INFO L225 Difference]: With dead ends: 1360 [2022-07-19 17:40:37,489 INFO L226 Difference]: Without dead ends: 803 [2022-07-19 17:40:37,489 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 17:40:37,490 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 118 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:37,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 308 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:37,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2022-07-19 17:40:37,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 800. [2022-07-19 17:40:37,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.5106382978723405) internal successors, (1207), 799 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1207 transitions. [2022-07-19 17:40:37,518 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1207 transitions. Word has length 35 [2022-07-19 17:40:37,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:37,518 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 1207 transitions. [2022-07-19 17:40:37,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,518 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1207 transitions. [2022-07-19 17:40:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-19 17:40:37,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:37,519 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:37,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 17:40:37,519 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:37,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1873814635, now seen corresponding path program 1 times [2022-07-19 17:40:37,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:37,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108561876] [2022-07-19 17:40:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:37,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:37,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:40:37,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:37,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108561876] [2022-07-19 17:40:37,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108561876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:37,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:37,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:37,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551154033] [2022-07-19 17:40:37,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:37,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:37,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:37,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:37,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:37,536 INFO L87 Difference]: Start difference. First operand 800 states and 1207 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:37,584 INFO L93 Difference]: Finished difference Result 1981 states and 3020 transitions. [2022-07-19 17:40:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:37,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-07-19 17:40:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:37,588 INFO L225 Difference]: With dead ends: 1981 [2022-07-19 17:40:37,588 INFO L226 Difference]: Without dead ends: 1208 [2022-07-19 17:40:37,589 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 17:40:37,590 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 79 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:37,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 408 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:37,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-07-19 17:40:37,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1206. [2022-07-19 17:40:37,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1205 states have (on average 1.5161825726141078) internal successors, (1827), 1205 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1827 transitions. [2022-07-19 17:40:37,648 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1827 transitions. Word has length 46 [2022-07-19 17:40:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:37,648 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 1827 transitions. [2022-07-19 17:40:37,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1827 transitions. [2022-07-19 17:40:37,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-19 17:40:37,649 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:37,649 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:37,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 17:40:37,650 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:37,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:37,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1625668141, now seen corresponding path program 1 times [2022-07-19 17:40:37,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:37,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016082603] [2022-07-19 17:40:37,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:37,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-19 17:40:37,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:37,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016082603] [2022-07-19 17:40:37,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016082603] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:37,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:37,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:37,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441295387] [2022-07-19 17:40:37,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:37,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:37,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:37,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:37,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:37,676 INFO L87 Difference]: Start difference. First operand 1206 states and 1827 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:37,719 INFO L93 Difference]: Finished difference Result 2363 states and 3595 transitions. [2022-07-19 17:40:37,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:37,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-07-19 17:40:37,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:37,723 INFO L225 Difference]: With dead ends: 2363 [2022-07-19 17:40:37,723 INFO L226 Difference]: Without dead ends: 1184 [2022-07-19 17:40:37,726 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 17:40:37,727 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 177 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:37,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 180 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:37,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-07-19 17:40:37,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1184. [2022-07-19 17:40:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1183 states have (on average 1.521555367709214) internal successors, (1800), 1183 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1800 transitions. [2022-07-19 17:40:37,774 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1800 transitions. Word has length 46 [2022-07-19 17:40:37,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:37,774 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1800 transitions. [2022-07-19 17:40:37,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1800 transitions. [2022-07-19 17:40:37,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-19 17:40:37,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:37,775 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:37,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 17:40:37,775 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:37,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1361258509, now seen corresponding path program 1 times [2022-07-19 17:40:37,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:37,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887477423] [2022-07-19 17:40:37,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:37,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:37,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:40:37,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:37,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887477423] [2022-07-19 17:40:37,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887477423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:37,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:37,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:37,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393947330] [2022-07-19 17:40:37,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:37,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:37,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:37,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:37,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:37,801 INFO L87 Difference]: Start difference. First operand 1184 states and 1800 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:37,883 INFO L93 Difference]: Finished difference Result 3020 states and 4639 transitions. [2022-07-19 17:40:37,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:37,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-07-19 17:40:37,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:37,889 INFO L225 Difference]: With dead ends: 3020 [2022-07-19 17:40:37,889 INFO L226 Difference]: Without dead ends: 1863 [2022-07-19 17:40:37,892 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 17:40:37,893 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 80 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:37,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 318 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2022-07-19 17:40:37,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1861. [2022-07-19 17:40:37,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1861 states, 1860 states have (on average 1.528494623655914) internal successors, (2843), 1860 states have internal predecessors, (2843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1861 states to 1861 states and 2843 transitions. [2022-07-19 17:40:37,956 INFO L78 Accepts]: Start accepts. Automaton has 1861 states and 2843 transitions. Word has length 47 [2022-07-19 17:40:37,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:37,956 INFO L495 AbstractCegarLoop]: Abstraction has 1861 states and 2843 transitions. [2022-07-19 17:40:37,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:37,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1861 states and 2843 transitions. [2022-07-19 17:40:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 17:40:37,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:37,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:37,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 17:40:37,958 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:37,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:37,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1966615625, now seen corresponding path program 1 times [2022-07-19 17:40:37,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:37,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928260618] [2022-07-19 17:40:37,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:37,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:40:37,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:37,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928260618] [2022-07-19 17:40:37,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928260618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:37,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:37,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:37,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324570361] [2022-07-19 17:40:37,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:37,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:37,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:37,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:37,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:37,976 INFO L87 Difference]: Start difference. First operand 1861 states and 2843 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:38,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:38,091 INFO L93 Difference]: Finished difference Result 5004 states and 7733 transitions. [2022-07-19 17:40:38,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:38,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-07-19 17:40:38,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:38,100 INFO L225 Difference]: With dead ends: 5004 [2022-07-19 17:40:38,100 INFO L226 Difference]: Without dead ends: 3172 [2022-07-19 17:40:38,103 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 17:40:38,103 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 84 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:38,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 379 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:38,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-07-19 17:40:38,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3170. [2022-07-19 17:40:38,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 3169 states have (on average 1.5392868412748502) internal successors, (4878), 3169 states have internal predecessors, (4878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:38,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4878 transitions. [2022-07-19 17:40:38,216 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4878 transitions. Word has length 48 [2022-07-19 17:40:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:38,216 INFO L495 AbstractCegarLoop]: Abstraction has 3170 states and 4878 transitions. [2022-07-19 17:40:38,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:38,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4878 transitions. [2022-07-19 17:40:38,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 17:40:38,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:38,218 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:38,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 17:40:38,218 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:38,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:38,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2080205177, now seen corresponding path program 1 times [2022-07-19 17:40:38,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:38,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098317264] [2022-07-19 17:40:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:38,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-19 17:40:38,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:38,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098317264] [2022-07-19 17:40:38,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098317264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:38,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:38,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:38,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262987564] [2022-07-19 17:40:38,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:38,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:38,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:38,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:38,232 INFO L87 Difference]: Start difference. First operand 3170 states and 4878 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:38,342 INFO L93 Difference]: Finished difference Result 6289 states and 9697 transitions. [2022-07-19 17:40:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:38,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-07-19 17:40:38,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:38,350 INFO L225 Difference]: With dead ends: 6289 [2022-07-19 17:40:38,351 INFO L226 Difference]: Without dead ends: 3148 [2022-07-19 17:40:38,354 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 17:40:38,355 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 174 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:38,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 179 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:38,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2022-07-19 17:40:38,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3148. [2022-07-19 17:40:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.5417858277724816) internal successors, (4852), 3147 states have internal predecessors, (4852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:38,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 4852 transitions. [2022-07-19 17:40:38,485 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 4852 transitions. Word has length 48 [2022-07-19 17:40:38,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:38,486 INFO L495 AbstractCegarLoop]: Abstraction has 3148 states and 4852 transitions. [2022-07-19 17:40:38,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:38,486 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 4852 transitions. [2022-07-19 17:40:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-19 17:40:38,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:38,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:38,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 17:40:38,487 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1092103999, now seen corresponding path program 1 times [2022-07-19 17:40:38,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:38,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458631710] [2022-07-19 17:40:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:40:38,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:38,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458631710] [2022-07-19 17:40:38,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458631710] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:38,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:38,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:38,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170374624] [2022-07-19 17:40:38,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:38,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:38,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:38,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:38,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:38,519 INFO L87 Difference]: Start difference. First operand 3148 states and 4852 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:38,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:38,729 INFO L93 Difference]: Finished difference Result 8037 states and 12429 transitions. [2022-07-19 17:40:38,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:40:38,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-07-19 17:40:38,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:38,741 INFO L225 Difference]: With dead ends: 8037 [2022-07-19 17:40:38,741 INFO L226 Difference]: Without dead ends: 4125 [2022-07-19 17:40:38,745 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 17:40:38,747 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 396 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:38,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 304 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4125 states. [2022-07-19 17:40:38,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4125 to 4125. [2022-07-19 17:40:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 4124 states have (on average 1.532007759456838) internal successors, (6318), 4124 states have internal predecessors, (6318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:38,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 6318 transitions. [2022-07-19 17:40:38,913 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 6318 transitions. Word has length 49 [2022-07-19 17:40:38,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:38,913 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 6318 transitions. [2022-07-19 17:40:38,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:38,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 6318 transitions. [2022-07-19 17:40:38,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-19 17:40:38,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:38,915 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:38,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 17:40:38,915 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:38,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:38,915 INFO L85 PathProgramCache]: Analyzing trace with hash 705446642, now seen corresponding path program 1 times [2022-07-19 17:40:38,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:38,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121192187] [2022-07-19 17:40:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:38,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:40:38,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:38,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121192187] [2022-07-19 17:40:38,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121192187] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:38,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:38,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:40:38,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548195077] [2022-07-19 17:40:38,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:38,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:40:38,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:38,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:40:38,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:40:38,945 INFO L87 Difference]: Start difference. First operand 4125 states and 6318 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:39,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:39,204 INFO L93 Difference]: Finished difference Result 10492 states and 15978 transitions. [2022-07-19 17:40:39,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:40:39,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-07-19 17:40:39,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:39,234 INFO L225 Difference]: With dead ends: 10492 [2022-07-19 17:40:39,234 INFO L226 Difference]: Without dead ends: 6390 [2022-07-19 17:40:39,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:40:39,240 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 675 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:39,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 505 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:39,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6390 states. [2022-07-19 17:40:39,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6390 to 4812. [2022-07-19 17:40:39,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 4811 states have (on average 1.5005196424859697) internal successors, (7219), 4811 states have internal predecessors, (7219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:39,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 7219 transitions. [2022-07-19 17:40:39,472 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 7219 transitions. Word has length 55 [2022-07-19 17:40:39,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:39,472 INFO L495 AbstractCegarLoop]: Abstraction has 4812 states and 7219 transitions. [2022-07-19 17:40:39,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:39,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 7219 transitions. [2022-07-19 17:40:39,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-19 17:40:39,475 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:39,475 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:39,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 17:40:39,475 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:39,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:39,476 INFO L85 PathProgramCache]: Analyzing trace with hash -153478858, now seen corresponding path program 1 times [2022-07-19 17:40:39,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:39,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395206214] [2022-07-19 17:40:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:39,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:40:39,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:39,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395206214] [2022-07-19 17:40:39,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395206214] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:39,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:39,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:39,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092929614] [2022-07-19 17:40:39,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:39,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:39,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:39,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:39,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:39,497 INFO L87 Difference]: Start difference. First operand 4812 states and 7219 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:39,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:39,703 INFO L93 Difference]: Finished difference Result 9971 states and 14928 transitions. [2022-07-19 17:40:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:39,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-07-19 17:40:39,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:39,711 INFO L225 Difference]: With dead ends: 9971 [2022-07-19 17:40:39,712 INFO L226 Difference]: Without dead ends: 5188 [2022-07-19 17:40:39,715 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 17:40:39,716 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 126 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:39,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 309 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:39,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5188 states. [2022-07-19 17:40:39,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5188 to 5156. [2022-07-19 17:40:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 1.4533462657613967) internal successors, (7492), 5155 states have internal predecessors, (7492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:39,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 7492 transitions. [2022-07-19 17:40:39,905 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 7492 transitions. Word has length 89 [2022-07-19 17:40:39,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:39,905 INFO L495 AbstractCegarLoop]: Abstraction has 5156 states and 7492 transitions. [2022-07-19 17:40:39,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:39,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 7492 transitions. [2022-07-19 17:40:39,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-19 17:40:39,908 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:39,909 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:39,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 17:40:39,909 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:39,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:39,909 INFO L85 PathProgramCache]: Analyzing trace with hash -278696132, now seen corresponding path program 1 times [2022-07-19 17:40:39,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:39,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054224734] [2022-07-19 17:40:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:39,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:40:39,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:39,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054224734] [2022-07-19 17:40:39,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054224734] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:39,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:39,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:39,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831616244] [2022-07-19 17:40:39,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:39,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:39,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:39,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:39,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:39,930 INFO L87 Difference]: Start difference. First operand 5156 states and 7492 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:40,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:40,127 INFO L93 Difference]: Finished difference Result 10825 states and 15694 transitions. [2022-07-19 17:40:40,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:40,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-07-19 17:40:40,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:40,136 INFO L225 Difference]: With dead ends: 10825 [2022-07-19 17:40:40,137 INFO L226 Difference]: Without dead ends: 5710 [2022-07-19 17:40:40,143 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 17:40:40,143 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 125 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:40,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 308 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:40,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2022-07-19 17:40:40,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5662. [2022-07-19 17:40:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5662 states, 5661 states have (on average 1.4073485249955837) internal successors, (7967), 5661 states have internal predecessors, (7967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:40,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5662 states to 5662 states and 7967 transitions. [2022-07-19 17:40:40,406 INFO L78 Accepts]: Start accepts. Automaton has 5662 states and 7967 transitions. Word has length 90 [2022-07-19 17:40:40,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:40,406 INFO L495 AbstractCegarLoop]: Abstraction has 5662 states and 7967 transitions. [2022-07-19 17:40:40,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:40,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5662 states and 7967 transitions. [2022-07-19 17:40:40,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-19 17:40:40,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:40,410 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:40,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 17:40:40,411 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:40,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:40,411 INFO L85 PathProgramCache]: Analyzing trace with hash -579083688, now seen corresponding path program 1 times [2022-07-19 17:40:40,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:40,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016448832] [2022-07-19 17:40:40,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:40,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:40:40,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:40,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016448832] [2022-07-19 17:40:40,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016448832] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:40,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:40,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:40,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800369108] [2022-07-19 17:40:40,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:40,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:40,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:40,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:40,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:40,430 INFO L87 Difference]: Start difference. First operand 5662 states and 7967 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:40,625 INFO L93 Difference]: Finished difference Result 11644 states and 16398 transitions. [2022-07-19 17:40:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:40,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-07-19 17:40:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:40,636 INFO L225 Difference]: With dead ends: 11644 [2022-07-19 17:40:40,636 INFO L226 Difference]: Without dead ends: 6043 [2022-07-19 17:40:40,644 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 17:40:40,644 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 121 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:40,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 305 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:40,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2022-07-19 17:40:40,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 5432. [2022-07-19 17:40:40,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 1.3487387221506169) internal successors, (7325), 5431 states have internal predecessors, (7325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 7325 transitions. [2022-07-19 17:40:40,936 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 7325 transitions. Word has length 91 [2022-07-19 17:40:40,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:40,936 INFO L495 AbstractCegarLoop]: Abstraction has 5432 states and 7325 transitions. [2022-07-19 17:40:40,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:40,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 7325 transitions. [2022-07-19 17:40:40,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-19 17:40:40,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:40,941 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:40,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-19 17:40:40,941 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:40,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:40,942 INFO L85 PathProgramCache]: Analyzing trace with hash 61290010, now seen corresponding path program 1 times [2022-07-19 17:40:40,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:40,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726134606] [2022-07-19 17:40:40,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:40,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-19 17:40:40,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:40,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726134606] [2022-07-19 17:40:40,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726134606] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:40,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:40,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:40,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390347161] [2022-07-19 17:40:40,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:40,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:40,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:40,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:40,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:40,969 INFO L87 Difference]: Start difference. First operand 5432 states and 7325 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:41,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:41,299 INFO L93 Difference]: Finished difference Result 10192 states and 13689 transitions. [2022-07-19 17:40:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:40:41,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-19 17:40:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:41,308 INFO L225 Difference]: With dead ends: 10192 [2022-07-19 17:40:41,309 INFO L226 Difference]: Without dead ends: 5247 [2022-07-19 17:40:41,316 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 17:40:41,316 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 438 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:41,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 386 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:41,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2022-07-19 17:40:41,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 5133. [2022-07-19 17:40:41,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 1.3068978955572876) internal successors, (6707), 5132 states have internal predecessors, (6707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 6707 transitions. [2022-07-19 17:40:41,532 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 6707 transitions. Word has length 92 [2022-07-19 17:40:41,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:41,532 INFO L495 AbstractCegarLoop]: Abstraction has 5133 states and 6707 transitions. [2022-07-19 17:40:41,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:41,532 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 6707 transitions. [2022-07-19 17:40:41,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-19 17:40:41,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:41,540 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:41,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-19 17:40:41,540 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:41,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:41,541 INFO L85 PathProgramCache]: Analyzing trace with hash 355597572, now seen corresponding path program 1 times [2022-07-19 17:40:41,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:41,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465093814] [2022-07-19 17:40:41,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:41,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-19 17:40:41,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:41,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465093814] [2022-07-19 17:40:41,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465093814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:41,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:41,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:41,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288526428] [2022-07-19 17:40:41,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:41,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:41,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:41,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:41,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:41,562 INFO L87 Difference]: Start difference. First operand 5133 states and 6707 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:41,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:41,726 INFO L93 Difference]: Finished difference Result 9800 states and 12790 transitions. [2022-07-19 17:40:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:41,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-07-19 17:40:41,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:41,734 INFO L225 Difference]: With dead ends: 9800 [2022-07-19 17:40:41,734 INFO L226 Difference]: Without dead ends: 5079 [2022-07-19 17:40:41,740 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 17:40:41,740 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 34 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:41,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 297 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:41,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5079 states. [2022-07-19 17:40:41,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5079 to 5079. [2022-07-19 17:40:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5079 states, 5078 states have (on average 1.2999212288302482) internal successors, (6601), 5078 states have internal predecessors, (6601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:41,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5079 states to 5079 states and 6601 transitions. [2022-07-19 17:40:41,948 INFO L78 Accepts]: Start accepts. Automaton has 5079 states and 6601 transitions. Word has length 121 [2022-07-19 17:40:41,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:41,949 INFO L495 AbstractCegarLoop]: Abstraction has 5079 states and 6601 transitions. [2022-07-19 17:40:41,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:41,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5079 states and 6601 transitions. [2022-07-19 17:40:41,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-19 17:40:41,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:41,956 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:41,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-19 17:40:41,956 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:41,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:41,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1642609420, now seen corresponding path program 1 times [2022-07-19 17:40:41,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:41,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763890513] [2022-07-19 17:40:41,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:41,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-19 17:40:41,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:41,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763890513] [2022-07-19 17:40:41,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763890513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:41,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:41,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:41,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675757855] [2022-07-19 17:40:41,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:41,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:41,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:41,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:41,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:41,981 INFO L87 Difference]: Start difference. First operand 5079 states and 6601 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:42,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:42,156 INFO L93 Difference]: Finished difference Result 9033 states and 11757 transitions. [2022-07-19 17:40:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:40:42,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-07-19 17:40:42,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:42,164 INFO L225 Difference]: With dead ends: 9033 [2022-07-19 17:40:42,164 INFO L226 Difference]: Without dead ends: 4995 [2022-07-19 17:40:42,168 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 17:40:42,168 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 300 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:42,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 308 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4995 states. [2022-07-19 17:40:42,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4995 to 4993. [2022-07-19 17:40:42,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4993 states, 4992 states have (on average 1.2772435897435896) internal successors, (6376), 4992 states have internal predecessors, (6376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:42,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4993 states to 4993 states and 6376 transitions. [2022-07-19 17:40:42,339 INFO L78 Accepts]: Start accepts. Automaton has 4993 states and 6376 transitions. Word has length 134 [2022-07-19 17:40:42,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:42,339 INFO L495 AbstractCegarLoop]: Abstraction has 4993 states and 6376 transitions. [2022-07-19 17:40:42,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:42,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4993 states and 6376 transitions. [2022-07-19 17:40:42,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-19 17:40:42,345 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:42,346 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:42,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-19 17:40:42,346 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:42,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:42,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1018384228, now seen corresponding path program 1 times [2022-07-19 17:40:42,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:42,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151127112] [2022-07-19 17:40:42,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:42,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-19 17:40:42,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:42,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151127112] [2022-07-19 17:40:42,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151127112] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:42,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:42,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:42,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512290600] [2022-07-19 17:40:42,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:42,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:42,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:42,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:42,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:42,381 INFO L87 Difference]: Start difference. First operand 4993 states and 6376 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:42,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:42,561 INFO L93 Difference]: Finished difference Result 9567 states and 12204 transitions. [2022-07-19 17:40:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:42,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-07-19 17:40:42,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:42,568 INFO L225 Difference]: With dead ends: 9567 [2022-07-19 17:40:42,568 INFO L226 Difference]: Without dead ends: 4993 [2022-07-19 17:40:42,572 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 17:40:42,572 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 25 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:42,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 296 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:42,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2022-07-19 17:40:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4953. [2022-07-19 17:40:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4953 states, 4952 states have (on average 1.2710016155088852) internal successors, (6294), 4952 states have internal predecessors, (6294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:42,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4953 states to 4953 states and 6294 transitions. [2022-07-19 17:40:42,747 INFO L78 Accepts]: Start accepts. Automaton has 4953 states and 6294 transitions. Word has length 140 [2022-07-19 17:40:42,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:42,748 INFO L495 AbstractCegarLoop]: Abstraction has 4953 states and 6294 transitions. [2022-07-19 17:40:42,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:42,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4953 states and 6294 transitions. [2022-07-19 17:40:42,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-19 17:40:42,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:42,755 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:42,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-19 17:40:42,755 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:42,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:42,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1930869354, now seen corresponding path program 1 times [2022-07-19 17:40:42,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:42,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990097721] [2022-07-19 17:40:42,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:42,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:42,779 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-19 17:40:42,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:42,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990097721] [2022-07-19 17:40:42,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990097721] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:42,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:42,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:42,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633530162] [2022-07-19 17:40:42,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:42,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:42,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:42,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:42,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:42,781 INFO L87 Difference]: Start difference. First operand 4953 states and 6294 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:42,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:42,939 INFO L93 Difference]: Finished difference Result 9515 states and 12082 transitions. [2022-07-19 17:40:42,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:42,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-07-19 17:40:42,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:42,946 INFO L225 Difference]: With dead ends: 9515 [2022-07-19 17:40:42,946 INFO L226 Difference]: Without dead ends: 4962 [2022-07-19 17:40:42,951 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 17:40:42,951 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 21 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:42,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 295 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:42,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2022-07-19 17:40:43,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 4922. [2022-07-19 17:40:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4922 states, 4921 states have (on average 1.2643771591140012) internal successors, (6222), 4921 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4922 states to 4922 states and 6222 transitions. [2022-07-19 17:40:43,202 INFO L78 Accepts]: Start accepts. Automaton has 4922 states and 6222 transitions. Word has length 140 [2022-07-19 17:40:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:43,203 INFO L495 AbstractCegarLoop]: Abstraction has 4922 states and 6222 transitions. [2022-07-19 17:40:43,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4922 states and 6222 transitions. [2022-07-19 17:40:43,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-19 17:40:43,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:43,210 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:43,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-19 17:40:43,210 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:43,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:43,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1655542827, now seen corresponding path program 1 times [2022-07-19 17:40:43,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:43,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724772407] [2022-07-19 17:40:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:43,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-19 17:40:43,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:43,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724772407] [2022-07-19 17:40:43,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724772407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:43,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:43,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:43,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439349304] [2022-07-19 17:40:43,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:43,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:43,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:43,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:43,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:43,236 INFO L87 Difference]: Start difference. First operand 4922 states and 6222 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:43,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:43,404 INFO L93 Difference]: Finished difference Result 8000 states and 10141 transitions. [2022-07-19 17:40:43,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:40:43,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2022-07-19 17:40:43,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:43,408 INFO L225 Difference]: With dead ends: 8000 [2022-07-19 17:40:43,408 INFO L226 Difference]: Without dead ends: 3479 [2022-07-19 17:40:43,413 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 17:40:43,414 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 277 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:43,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 287 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:43,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2022-07-19 17:40:43,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3477. [2022-07-19 17:40:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 3476 states have (on average 1.2361910241657077) internal successors, (4297), 3476 states have internal predecessors, (4297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:43,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4297 transitions. [2022-07-19 17:40:43,573 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4297 transitions. Word has length 144 [2022-07-19 17:40:43,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:43,573 INFO L495 AbstractCegarLoop]: Abstraction has 3477 states and 4297 transitions. [2022-07-19 17:40:43,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:43,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4297 transitions. [2022-07-19 17:40:43,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-19 17:40:43,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:43,578 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:43,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-19 17:40:43,578 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:43,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:43,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1691520611, now seen corresponding path program 1 times [2022-07-19 17:40:43,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:43,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061909100] [2022-07-19 17:40:43,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:43,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-19 17:40:43,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:43,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061909100] [2022-07-19 17:40:43,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061909100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:43,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:43,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:40:43,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523832356] [2022-07-19 17:40:43,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:43,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:40:43,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:40:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:40:43,607 INFO L87 Difference]: Start difference. First operand 3477 states and 4297 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:43,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:43,727 INFO L93 Difference]: Finished difference Result 5637 states and 6973 transitions. [2022-07-19 17:40:43,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:40:43,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2022-07-19 17:40:43,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:43,730 INFO L225 Difference]: With dead ends: 5637 [2022-07-19 17:40:43,730 INFO L226 Difference]: Without dead ends: 2242 [2022-07-19 17:40:43,732 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 17:40:43,733 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 279 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:43,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 272 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:43,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2022-07-19 17:40:43,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2240. [2022-07-19 17:40:43,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 2239 states have (on average 1.1991960696739616) internal successors, (2685), 2239 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 2685 transitions. [2022-07-19 17:40:43,837 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 2685 transitions. Word has length 144 [2022-07-19 17:40:43,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:43,837 INFO L495 AbstractCegarLoop]: Abstraction has 2240 states and 2685 transitions. [2022-07-19 17:40:43,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:43,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 2685 transitions. [2022-07-19 17:40:43,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-19 17:40:43,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:43,839 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:43,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-19 17:40:43,840 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:43,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:43,840 INFO L85 PathProgramCache]: Analyzing trace with hash -52842861, now seen corresponding path program 1 times [2022-07-19 17:40:43,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:43,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185915613] [2022-07-19 17:40:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:43,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 17:40:43,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:43,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185915613] [2022-07-19 17:40:43,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185915613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:43,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:43,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:43,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710943730] [2022-07-19 17:40:43,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:43,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:43,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:43,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:43,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:43,878 INFO L87 Difference]: Start difference. First operand 2240 states and 2685 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:43,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:43,977 INFO L93 Difference]: Finished difference Result 4042 states and 4878 transitions. [2022-07-19 17:40:43,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:43,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2022-07-19 17:40:43,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:43,980 INFO L225 Difference]: With dead ends: 4042 [2022-07-19 17:40:43,980 INFO L226 Difference]: Without dead ends: 2178 [2022-07-19 17:40:43,982 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 17:40:43,982 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 1 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:43,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 296 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:43,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2022-07-19 17:40:44,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 2110. [2022-07-19 17:40:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2110 states, 2109 states have (on average 1.188715030820294) internal successors, (2507), 2109 states have internal predecessors, (2507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 2507 transitions. [2022-07-19 17:40:44,079 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 2507 transitions. Word has length 183 [2022-07-19 17:40:44,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:44,079 INFO L495 AbstractCegarLoop]: Abstraction has 2110 states and 2507 transitions. [2022-07-19 17:40:44,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:44,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 2507 transitions. [2022-07-19 17:40:44,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-19 17:40:44,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:44,081 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:44,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-19 17:40:44,081 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:44,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:44,082 INFO L85 PathProgramCache]: Analyzing trace with hash -887750668, now seen corresponding path program 1 times [2022-07-19 17:40:44,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:44,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706956425] [2022-07-19 17:40:44,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:44,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:40:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-19 17:40:44,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:40:44,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706956425] [2022-07-19 17:40:44,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706956425] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:40:44,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:40:44,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:40:44,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922449517] [2022-07-19 17:40:44,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:40:44,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:40:44,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:40:44,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:40:44,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:40:44,113 INFO L87 Difference]: Start difference. First operand 2110 states and 2507 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:40:44,226 INFO L93 Difference]: Finished difference Result 4523 states and 5412 transitions. [2022-07-19 17:40:44,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:40:44,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2022-07-19 17:40:44,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:40:44,229 INFO L225 Difference]: With dead ends: 4523 [2022-07-19 17:40:44,229 INFO L226 Difference]: Without dead ends: 2783 [2022-07-19 17:40:44,231 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 17:40:44,231 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 141 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:40:44,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 292 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:40:44,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2022-07-19 17:40:44,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2404. [2022-07-19 17:40:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2404 states, 2403 states have (on average 1.1747815230961298) internal successors, (2823), 2403 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:44,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 2823 transitions. [2022-07-19 17:40:44,340 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 2823 transitions. Word has length 190 [2022-07-19 17:40:44,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:40:44,341 INFO L495 AbstractCegarLoop]: Abstraction has 2404 states and 2823 transitions. [2022-07-19 17:40:44,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:40:44,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 2823 transitions. [2022-07-19 17:40:44,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-19 17:40:44,342 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:40:44,343 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:44,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-19 17:40:44,343 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:40:44,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:40:44,344 INFO L85 PathProgramCache]: Analyzing trace with hash -867870868, now seen corresponding path program 1 times [2022-07-19 17:40:44,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:40:44,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423720625] [2022-07-19 17:40:44,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:40:44,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:40:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 17:40:44,358 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 17:40:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 17:40:44,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 17:40:44,404 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 17:40:44,405 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:40:44,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-19 17:40:44,408 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] [2022-07-19 17:40:44,411 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:40:44,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:40:44 BoogieIcfgContainer [2022-07-19 17:40:44,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:40:44,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:40:44,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:40:44,502 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:40:44,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:40:35" (3/4) ... [2022-07-19 17:40:44,503 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 17:40:44,577 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:40:44,577 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:40:44,578 INFO L158 Benchmark]: Toolchain (without parser) took 9699.13ms. Allocated memory was 88.1MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 57.1MB in the beginning and 774.0MB in the end (delta: -716.9MB). Peak memory consumption was 981.6MB. Max. memory is 16.1GB. [2022-07-19 17:40:44,578 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:40:44,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.51ms. Allocated memory is still 88.1MB. Free memory was 57.0MB in the beginning and 60.5MB in the end (delta: -3.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-07-19 17:40:44,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.22ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 58.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:40:44,579 INFO L158 Benchmark]: Boogie Preprocessor took 39.86ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 56.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:40:44,579 INFO L158 Benchmark]: RCFGBuilder took 405.89ms. Allocated memory was 88.1MB in the beginning and 119.5MB in the end (delta: 31.5MB). Free memory was 56.2MB in the beginning and 92.7MB in the end (delta: -36.5MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2022-07-19 17:40:44,579 INFO L158 Benchmark]: TraceAbstraction took 8779.04ms. Allocated memory was 119.5MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 91.6MB in the beginning and 797.1MB in the end (delta: -705.5MB). Peak memory consumption was 960.2MB. Max. memory is 16.1GB. [2022-07-19 17:40:44,579 INFO L158 Benchmark]: Witness Printer took 76.17ms. Allocated memory is still 1.8GB. Free memory was 797.1MB in the beginning and 774.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-19 17:40:44,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.51ms. Allocated memory is still 88.1MB. Free memory was 57.0MB in the beginning and 60.5MB in the end (delta: -3.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.22ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 58.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.86ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 56.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.89ms. Allocated memory was 88.1MB in the beginning and 119.5MB in the end (delta: 31.5MB). Free memory was 56.2MB in the beginning and 92.7MB in the end (delta: -36.5MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8779.04ms. Allocated memory was 119.5MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 91.6MB in the beginning and 797.1MB in the end (delta: -705.5MB). Peak memory consumption was 960.2MB. Max. memory is 16.1GB. * Witness Printer took 76.17ms. Allocated memory is still 1.8GB. Free memory was 797.1MB in the beginning and 774.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. 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: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L28] int c ; [L29] int c_t ; [L30] int c_req_up ; [L31] int p_in ; [L32] int p_out ; [L33] int wl_st ; [L34] int c1_st ; [L35] int c2_st ; [L36] int wb_st ; [L37] int r_st ; [L38] int wl_i ; [L39] int c1_i ; [L40] int c2_i ; [L41] int wb_i ; [L42] int r_i ; [L43] int wl_pc ; [L44] int c1_pc ; [L45] int c2_pc ; [L46] int wb_pc ; [L47] int e_e ; [L48] int e_f ; [L49] int e_g ; [L50] int e_c ; [L51] int e_p_in ; [L52] int e_wl ; [L58] int d ; [L59] int data ; [L60] int processed ; [L61] static int t_b ; VAL [c=0, c1_i=0, c1_pc=0, c1_st=0, c2_i=0, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=0, e_e=0, e_f=0, e_g=0, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=0, wb_pc=0, wb_st=0, wl_i=0, wl_pc=0, wl_st=0] [L689] int __retres1 ; [L693] e_wl = 2 [L694] e_c = e_wl [L695] e_g = e_c [L696] e_f = e_g [L697] e_e = e_f [L698] wl_pc = 0 [L699] c1_pc = 0 [L700] c2_pc = 0 [L701] wb_pc = 0 [L702] wb_i = 1 [L703] c2_i = wb_i [L704] c1_i = c2_i [L705] wl_i = c1_i [L706] r_i = 0 [L707] c_req_up = 0 [L708] d = 0 [L709] c = 0 [L710] CALL start_simulation() [L400] int kernel_st ; [L403] kernel_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L404] COND FALSE !((int )c_req_up == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L415] COND TRUE (int )wl_i == 1 [L416] wl_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L420] COND TRUE (int )c1_i == 1 [L421] c1_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L425] COND TRUE (int )c2_i == 1 [L426] c2_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L430] COND TRUE (int )wb_i == 1 [L431] wb_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L435] COND FALSE !((int )r_i == 1) [L438] r_st = 2 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L440] COND FALSE !((int )e_f == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L445] COND FALSE !((int )e_g == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L450] COND FALSE !((int )e_e == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L455] COND FALSE !((int )e_c == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L460] COND FALSE !((int )e_wl == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L465] COND FALSE !((int )wl_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L473] COND FALSE !((int )wl_pc == 2) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L483] COND FALSE !((int )c1_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L492] COND FALSE !((int )c2_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L501] COND FALSE !((int )wb_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L510] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L515] COND FALSE !((int )e_e == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L520] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L525] COND FALSE !((int )e_g == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L530] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L535] COND FALSE !((int )e_wl == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L541] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L544] kernel_st = 1 [L545] CALL eval() [L286] int tmp ; [L287] int tmp___0 ; [L288] int tmp___1 ; [L289] int tmp___2 ; [L290] int tmp___3 ; VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L294] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L296] COND TRUE (int )wl_st == 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L317] COND TRUE (int )wl_st == 0 [L319] tmp = __VERIFIER_nondet_int() [L321] COND TRUE \read(tmp) [L323] wl_st = 1 [L324] CALL write_loop() [L63] int t ; VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=1] [L66] COND TRUE (int )wl_pc == 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=1] [L80] wl_st = 2 [L81] wl_pc = 1 [L82] e_wl = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L324] RET write_loop() [L332] COND TRUE (int )c1_st == 0 [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___0) [L338] c1_st = 1 [L339] CALL compute1() [L137] COND TRUE (int )c1_pc == 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=1, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L148] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=0, c1_st=1, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L150] c1_st = 2 [L151] c1_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L339] RET compute1() [L347] COND TRUE (int )c2_st == 0 [L349] tmp___1 = __VERIFIER_nondet_int() [L351] COND TRUE \read(tmp___1) [L353] c2_st = 1 [L354] CALL compute2() [L182] COND TRUE (int )c2_pc == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=0, c2_st=1, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L193] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=0, c2_st=1, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L195] c2_st = 2 [L196] c2_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L354] RET compute2() [L362] COND TRUE (int )wb_st == 0 [L364] tmp___2 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___2) [L368] wb_st = 1 [L369] CALL write_back() [L227] COND TRUE (int )wb_pc == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=1, wl_i=1, wl_pc=1, wl_st=2] [L238] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=1, wl_i=1, wl_pc=1, wl_st=2] [L240] wb_st = 2 [L241] wb_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L369] RET write_back() [L377] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L294] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L296] COND FALSE !((int )wl_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L299] COND FALSE !((int )c1_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L302] COND FALSE !((int )c2_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L305] COND FALSE !((int )wb_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L308] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L545] RET eval() [L547] kernel_st = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L548] COND FALSE !((int )c_req_up == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L559] kernel_st = 3 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L560] COND FALSE !((int )e_f == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L565] COND FALSE !((int )e_g == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L570] COND FALSE !((int )e_e == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L575] COND FALSE !((int )e_c == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L580] COND TRUE (int )e_wl == 0 [L581] e_wl = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L585] COND TRUE (int )wl_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L586] COND TRUE (int )e_wl == 1 [L587] wl_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L603] COND TRUE (int )c1_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L604] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L612] COND TRUE (int )c2_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L613] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L621] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L622] COND FALSE !((int )e_g == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L630] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L635] COND FALSE !((int )e_e == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L640] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L645] COND FALSE !((int )e_g == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L650] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L655] COND TRUE (int )e_wl == 1 [L656] e_wl = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L660] COND TRUE (int )wl_st == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L541] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L544] kernel_st = 1 [L545] CALL eval() [L286] int tmp ; [L287] int tmp___0 ; [L288] int tmp___1 ; [L289] int tmp___2 ; [L290] int tmp___3 ; VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L294] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L296] COND TRUE (int )wl_st == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L317] COND TRUE (int )wl_st == 0 [L319] tmp = __VERIFIER_nondet_int() [L321] COND TRUE \read(tmp) [L323] wl_st = 1 [L324] CALL write_loop() [L63] int t ; VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L66] COND FALSE !((int )wl_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L69] COND FALSE !((int )wl_pc == 2) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L72] COND TRUE (int )wl_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L87] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L89] t = d [L90] data = d [L91] processed = 0 [L92] e_f = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L93] COND TRUE (int )c1_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L94] COND TRUE (int )e_f == 1 [L95] c1_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L102] COND TRUE (int )c2_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L103] COND TRUE (int )e_f == 1 [L104] c2_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L111] e_f = 2 [L112] wl_st = 2 [L113] wl_pc = 2 [L114] t_b = t VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L324] RET write_loop() [L332] COND TRUE (int )c1_st == 0 [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___0) [L338] c1_st = 1 [L339] CALL compute1() [L137] COND FALSE !((int )c1_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L140] COND TRUE (int )c1_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L155] COND TRUE ! processed [L156] data += 1 [L157] e_g = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L158] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L159] COND TRUE (int )e_g == 1 [L160] wb_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L167] e_g = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L148] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L150] c1_st = 2 [L151] c1_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L339] RET compute1() [L347] COND TRUE (int )c2_st == 0 [L349] tmp___1 = __VERIFIER_nondet_int() [L351] COND TRUE \read(tmp___1) [L353] c2_st = 1 [L354] CALL compute2() [L182] COND FALSE !((int )c2_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L185] COND TRUE (int )c2_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L200] COND TRUE ! processed [L201] data += 1 [L202] e_g = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L203] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L204] COND TRUE (int )e_g == 1 [L205] wb_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L212] e_g = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L193] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L195] c2_st = 2 [L196] c2_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L354] RET compute2() [L362] COND TRUE (int )wb_st == 0 [L364] tmp___2 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___2) [L368] wb_st = 1 [L369] CALL write_back() [L227] COND FALSE !((int )wb_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L230] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L245] c_t = data [L246] c_req_up = 1 [L247] processed = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L238] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L240] wb_st = 2 [L241] wb_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L369] RET write_back() [L377] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L294] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L296] COND FALSE !((int )wl_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L299] COND FALSE !((int )c1_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L302] COND FALSE !((int )c2_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L305] COND FALSE !((int )wb_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L308] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L545] RET eval() [L547] kernel_st = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L548] COND TRUE (int )c_req_up == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L549] COND TRUE c != c_t [L550] c = c_t [L551] e_c = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L555] c_req_up = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L559] kernel_st = 3 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L560] COND FALSE !((int )e_f == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L565] COND FALSE !((int )e_g == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L570] COND FALSE !((int )e_e == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L575] COND TRUE (int )e_c == 0 [L576] e_c = 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L580] COND FALSE !((int )e_wl == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L585] COND FALSE !((int )wl_pc == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L593] COND TRUE (int )wl_pc == 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L594] COND FALSE !((int )e_e == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L603] COND TRUE (int )c1_pc == 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L604] COND FALSE !((int )e_f == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L612] COND TRUE (int )c2_pc == 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L613] COND FALSE !((int )e_f == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L621] COND TRUE (int )wb_pc == 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L622] COND FALSE !((int )e_g == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L630] COND TRUE (int )e_c == 1 [L631] r_st = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L635] COND FALSE !((int )e_e == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L640] COND FALSE !((int )e_f == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L645] COND FALSE !((int )e_g == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L650] COND TRUE (int )e_c == 1 [L651] e_c = 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L655] COND FALSE !((int )e_wl == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L660] COND FALSE !((int )wl_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L663] COND FALSE !((int )c1_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L666] COND FALSE !((int )c2_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L669] COND FALSE !((int )wb_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L672] COND TRUE (int )r_st == 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L541] COND TRUE 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L544] kernel_st = 1 [L545] CALL eval() [L286] int tmp ; [L287] int tmp___0 ; [L288] int tmp___1 ; [L289] int tmp___2 ; [L290] int tmp___3 ; VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L294] COND TRUE 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L296] COND FALSE !((int )wl_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L299] COND FALSE !((int )c1_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L302] COND FALSE !((int )c2_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L305] COND FALSE !((int )wb_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L308] COND TRUE (int )r_st == 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L317] COND FALSE !((int )wl_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L332] COND FALSE !((int )c1_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L347] COND FALSE !((int )c2_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L362] COND FALSE !((int )wb_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L377] COND TRUE (int )r_st == 0 [L379] tmp___3 = __VERIFIER_nondet_int() [L381] COND TRUE \read(tmp___3) [L383] r_st = 1 [L384] CALL read() [L259] d = c [L260] e_e = 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L261] COND FALSE !((int )wl_pc == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L269] COND TRUE (int )wl_pc == 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L270] COND TRUE (int )e_e == 1 [L271] wl_st = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L279] e_e = 2 [L280] r_st = 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L384] RET read() [L294] COND TRUE 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp___3=-5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L296] COND TRUE (int )wl_st == 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp___3=-5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L317] COND TRUE (int )wl_st == 0 [L319] tmp = __VERIFIER_nondet_int() [L321] COND TRUE \read(tmp) [L323] wl_st = 1 [L324] CALL write_loop() [L63] int t ; VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L66] COND FALSE !((int )wl_pc == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L69] COND TRUE (int )wl_pc == 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L118] t = t_b VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L119] COND FALSE !(d == t + 1) [L123] CALL error() [L23] reach_error() VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 32, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7691 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7691 mSDsluCounter, 10289 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3851 mSDsCounter, 201 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 663 IncrementalHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 201 mSolverCounterUnsat, 6438 mSDtfsCounter, 663 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5662occurred in iteration=21, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 31 MinimizatonAttempts, 4416 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 2510 NumberOfCodeBlocks, 2510 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2286 ConstructedInterpolants, 0 QuantifiedInterpolants, 3877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 PerfectInterpolantSequences, 617/617 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 17:40:44,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- 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